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EcoFlow Stream Ultra X: 30-second review

The EcoFlow Stream Ultra X sits at the premium end of a rapidly growing product category. It is sold as a balcony power plant storage system. That means it combines a large lithium iron phosphate battery with a built-in hybrid inverter, four solar MPPT inputs, and a standard wall plug connection. You attach solar panels to it, plug it into a socket, and let it get to work – or that’s the theory.

It charges from the sun or from cheap grid power during the day, then it powers your home at night. Simple. What makes the Ultra X stand out from the crowd is its capacity. At 3.84 kWh, it doubles the storage of EcoFlow’s own Stream Ultra. That is a meaningful difference. A typical fridge uses about 1-2 kWh per day. An Ultra X, fully charged, can cover that and much more besides.

The system delivers up to 2,300W of continuous on-grid AC power with two AC outlets that handle simultaneous loads, and 800W back into the property's mains system. Solar input tops out at 2,000W across four MPPT trackers, each rated at 500W.

This technology first became popular with apartment dwellers and renters across Europe who want to cut their electricity bills without undertaking any structural work. But it can be a simple first step for any homeowner or small business that wants to use variable-rate electricity or get into solar without committing to a full rooftop system.

The Ultra X scales too. Connect multiple units and additional Stream batteries to reach up to 23 kWh of total storage. That is no longer a starter system, as it exceeds the total power consumption of a typical UK home.

The EcoFlow app ties it all together. It uses AI to track pricing, weather forecasts, and usage patterns, adjusting charge and discharge behaviour accordingly. For anyone who wants energy independence without the complexity, the Stream Ultra X makes a very strong case.

Due to the way this technology works, it's superior to even the best portable power stations we've tested, although I wouldn't want to try to take this device camping.

EcoFlow Stream Ultra X: Price & availability

(Image credit: EcoFlow)

• How much does it cost? £1,499/€1,499
• When is it out? Available now across most of Europe
• Where can you get it? EcoFlow official website and selected European retailers

The current asking price for the Ultra X is £1,499 in the UK direct from EcoFlow. In Europe, it's priced at €1,427 on EcoFlow's site, although EcoFlow regularly has discount deals, so it might be possible to get it a little cheaper.

It's not currently available in the US, as far as I can see, with the closest alternative being the EcoFlow Stream Ultra (not the X variant), for $1279 at the time of review. It's essentially the same type of system, with a lower capacity than the Stream Ultra X.

That price makes it the most expensive option in the Stream series, and for those wanting a lower up-front cost, the Ultra model, with half the battery capacity, but the same microinverter technology, can be got for £999.

The best-known competitor to EcoFlow in the balcony solar space is Anker with its Solix Solarbank 2 E1600 Pro, which sells for only €799 in Europe. However, that’s only for a 1600 Wh battery, though it does have 4 MPPT solar inputs and the same 10-year warranty as the Ultra X. This system can be expanded to 9.6 kWh by adding up to six modules that stack vertically.

On paper, the Ultra X and the Stream series in general might seem on the pricey side, especially when compared to some of the deals available on portable power stations.

However, this equipment isn’t comparable to power stations, since it's meant to feed power directly into the property's electrical system, rather than directly power an appliance. Therefore, it has a significant number of safety protections that power stations lack.

Based on its build quality, attention to detail, and the sophistication of its software, the EcoFlow Ultra X is undoubtedly worth the asking price.

• Value: 4 / 5

EcoFlow Stream Ultra X: Specs

Catagories

Spec

Battery Capacity

3.84 kWh (LFP)

Max AC Output

2,300W (on-grid continuous)

Max Output to mains

800W (900W in France)

Solar Input

2,000W max (4 x MPPT, 500W each, 15-60V DC)

AC Charging Input

1,200W max

Expandable Capacity

Up to 23 kWh (via additional Stream units)

Cycle Life

6,000 cycles to 70% capacity

Warranty

10 years

IP Rating

IP65 (dust and water resistant)

Operating Temperature

Down to -20°C (integrated battery heater)

Dimensions

420 x 294 x 460 mm

Weight

38.8 kg

Noise Level

Under 30 dB

Connectivity

Wi-Fi (2.4GHz), EcoFlow app, Matter, Shelly, Tibber compatible

EcoFlow Stream Ultra X: Design

(Image credit: Mark Pickavance)

• Built for indoors and outdoors
• Battery and microinverter in one
• Application controlled

A short disclaimer before we go any further: I’m not an electrician, and therefore any information I provide about plugging things in should be considered as being my understanding, and not an irrefutable fact.

The EcoFlow Stream Ultra X is part of what is being termed ‘plug-in solar’, meaning you can install it without an electrician's intervention. Can you do that, and what are the implications? I’ll talk about that later on when I cover the user experience, but for now, what did EcoFlow build?

The Stream Ultra X is an IP65 weatherproof design made for genuine outdoor use. Clean, minimalist white enclosure designed to blend into residential settings. Wall-mount bracket included for balcony installation. And it’s impressively compact, given the 3.84 kWh capacity it contains.

While this is not a product designed for a garage or a utility room, it can be put in these if the heat it generates isn’t an issue and you’re not creating a potential fire hazard.

The unit measures 420 x 294 x 460mm, and weighs 38.8 kg. The previous Stream Ultra at 1.92 kWh was a much lighter 23.1 kg. The Ultra X, at double the capacity, is almost twice the weight.

Installation requires at least two people and some forward planning about how to get a 39 kg box onto a balcony or, in my case, close to my consumer unit in my garage. EcoFlow ships a dedicated bracket for wall mounting, but I think this is more about theft prevention than additional stability.

The IP65 rating is not a token gesture. It means genuine dust-tight protection and resistance to water jets from any direction. The Stream Ultra X should be able to sit outside through a European winter without complaint. The integrated battery heater ensures performance at temperatures down to -20 degrees Celsius. That matters in northern European markets where the appeal of balcony solar is perhaps greatest.

In terms of the layout, there is a clean user-facing side with an on/off button and an LED strip that shows the charge level and whether the battery is charging. On the other side is a huge heatsink, dual AC outputs (UK 3-pin in mine) and four MPPT inputs for solar panels. Each of these is rated for 500W 15-60V DC, enabling up to 2000W of solar energy to be injected into the battery.

Along with the AC outputs that can deliver 2300W, an additional cable is provided for charging the battery from the grid or for sending up to 800W to the property's mains system.

In Germany, this cable comes terminated with a plug designed to go into a EU power socket directly, whereas in the UK, the wires end with three ferruled wires.

The connector for the power interface has a corresponding connection for chaining to another Stream battery. At this time, EcoFlow makes the Stream Ultra X, Stream Ultra, Stream Pro and Stream Max.

Here’s the breakdown of what each offers.

 

Battery Capacity

Solar Inputs

Solar Input

Max Expansion

Stream Ultra X

3.84kWh

4

2000W

22 kWh

Stream Ultra

1.92kWh

4

2000W

12 kWh

Stream Pro

1.92kWh

3

1500W

11.52 kWh

Stream AC Pro

1.92kWh

0

N/A

11.52 kWh

Stream Max

1.92kWh

2

1000W

N/A

(Image credit: Mark Pickavance)

The two AC outlets sit on the unit’s face. They are clearly labelled and sensibly positioned. The PV input ports are grouped together. Cable management is tidy out of the box. EcoFlow has done well here. The only minor gripe is that 38.8 kg makes periodic repositioning or maintenance awkward. A wheeled trolley would be a great addition to this equipment if EcoFlow added one.

In conclusion, this is mostly a scaled-up version of the Stream Ultra with twice the battery capacity, but exactly the same solar inputs and 2000W input cap. Based on the price of this unit compared with a Stream Ultra and a Stream AC Pro combined, there are some cost savings in using the Stream Ultra X to achieve the same capacity.

Other than the two buttons, one to power and the other to activate the AC ports, all control of the unit is via a terrific phone application. This tool allows you to monitor every aspect of the battery, decide when it discharges and recharges, and it can handle multiple pieces of equipment as a single system.

• Design: 4 / 5

EcoFlow Stream Ultra X: Features

• Ten-year warranty
• Extensible
• Up to 23 kWh

The hardware inside the Stream Ultra X is where EcoFlow has made its boldest statements. Start with the battery itself. The 3.84 kWh lithium iron phosphate cell is rated for 6,000 charge cycles to 70% capacity and backed by a ten-year warranty. LFP chemistry is the right choice here. It is thermally stable, long-lived, and less prone to degradation than the lithium cobalt oxide chemistry found in cheaper alternatives.

For a product that will live outside on a balcony, potentially, for the best part of a decade, that matters enormously. The four MPPT trackers are a standout feature. Each handles up to 500W of solar input at between 15 and 60 volts DC, for a total of 2000W.

With these independent trackers, you can connect panels facing different directions, at different angles, or partially shaded, and each string is optimised independently. A single tracker managing four panels would drag performance down to the weakest link. Four separate trackers do not. EcoFlow says the system performs reliably even in low solar irradiation conditions, and the multi-MPPT architecture is a large part of why.

The integrated hybrid inverter handles both on-grid and off-grid modes. On-grid, it delivers up to 2,300W of continuous AC output across two standard sockets. Off-grid capacity is more modest, but the unit keeps essential loads running during outages. The AC charging input allows up to 1,200W from the grid, meaning you can top up the battery overnight on cheap tariff rates and discharge it during expensive peak periods.

(Image credit: Mark Pickavance)

That is where the AI Time-of-Use feature earns its keep. EcoFlow’s Home Energy Management System integrates with third-party smart energy monitors, including Shelly and Tibber. The app connects to local electricity price data and weather forecasts, running over 100 million data operations per hour according to EcoFlow, to deliver forecasts with up to 94% accuracy over a three-day horizon.

The system automatically adjusts when to charge, when to discharge, and when to feed solar power into the home. In practice, this means the Ultra X is not just a passive battery. It is an active participant in your household energy economy. Some of the more advanced AI features require a premium app subscription, which is a minor but worth noting caveat.

Connectivity runs over 2.4GHz Wi-Fi. The app is polished and informative, giving real-time visibility of generation, consumption, and savings. Matter and Shelly compatibility means the Ultra X fits into a broader smart home setup without friction.

The expandability story is also compelling. A single Ultra X delivers 3.84 kWh. Connect up to five more Stream series units to reach 23 kWh. That is a home energy solution, not a starter product. The Stream series uses a parallel cable connection and automatically shares intelligence across units. The system distributes energy between units in a smart, usage-based way rather than draining one unit at a time. This architecture reduces the impact of charging and discharging, so that even after ten years of use, these modules should still retain a good proportion of their original capacity.

• Features: 4.5 / 5

EcoFlow Stream Ultra X: User Experience

• Simple in theory
• Get an electrician
• Genuine cost savings
• Add Solar later

(Image credit: Mark Pickavance)

According to EcoFlow - and I’m not qualified to disagree with them - in the UK, local regulations require the EcoFlow STREAM DIY Cable to be wired into the distribution board, which must be done by a certified installer or electrician.

The snag here that I ran into is that electricians typically won’t attach this to any ancient distribution board. It requires a modern design that can accommodate the dual-direction RCD and provide the per-circuit RCD protection currently mandated in the UK.

That elevates what would be a relatively inexpensive exercise into one, for me, which cost almost as much as the Stream Ultra X, as I had my entire consumer unit replaced.

However, this was probably long overdue, and it's critical if I ever expand the system further or want to use separate microinverters.

Does it work if you simply find a good-quality UK plug, attach it to the provided cable, and plug it into your ring main? Yes, it does, but electricians wouldn’t recommend it, and therefore, I won’t suggest you do that either.

Ideally, it should be connected on a fused spur from the consumer unit with a bi-directional RCD, I believe.

Another dimension to these requirements, and it has to do with exporting power back to the grid. When the Ultra X is injecting power into the wiring of the house, it's trying to balance what the battery discharges and the power drawn from the grid. If it adds too much power that will end up going out to the grid, and you are effectively powering your neighbours' homes for free.

It’s worth noting that if you have an MCS (Microgeneration Certification Scheme)- rated electrician come and sign off on your installation, you can get a certificate that allows you to sell power back to your supplier at a pre-agreed price.

This could be a good option if you have enough solar panels to generate the 2000W of power that the Ultra Stream X can ingest, the battery is full, and you only need 400W to run the house. But you can go further, charge the battery up when electricity is cheap and then dump it to the grid when it's expensive to make money and offset costs.

A consumer unit that needed replacing (Image credit: Mark Pickavance)

To make this model work more effectively, you need a special RCD that EcoFlow sells that can accurately monitor the flow of power in and out of the house, and I had one of those installed, adding another £99 to my costs. The step I’ve not yet taken is to add solar panels, but that’s my next phase.

When I first got this unit, I’d made various assumptions about how it might work based on also owning an EcoFlow Delta 2 power station. The Ultra X isn’t like a Delta series unit at all, in one critical way.

With the Delta 2, you plug that into a wall socket, and anything you wish to power into one of its power inlets. If the power coming from the mains is interrupted because you switch the wall socket off, or use a smart socket, then the Delta 2 will immediately take over, much like a UPS, and power the device until it's exhausted, at which time the device it's plugged into will be turned off. This is pretty much the same in the majority of power station products, though some won’t automatically trigger battery power with a UPS mode.

The Ultra X is totally different in that it can do the direct-powering trick like the Delta, but it can also power things via its connection to the electrical system. That means when the battery power is all used up, it can sit and wait until the optimal time to recharge. With the Delta 2, once the power connection is restored, it will immediately start charging, and there are limited things you can do to stop it while still having power flow through to connected devices.

Being able to insert power into the system, then step aside and let the mains do the work, is the most useful aspect of this design, as it lets you fully control when you recharge and discharge.

A smart metre (Image credit: Mark Pickavance)

The flip side of this coin is that, should the mains power be cut, the Ultra X won’t just take over and power the house. In fact, if it detects a mains failure, it will immediately stop delivering power to that connection as a safety precaution. This is called anti-islanding.

If the battery still outputs power during a power cut, then that might leak out onto the grid, making things dangerous for those working to restore the service, and it would also mean that if I pulled the plug out of the wall that connects it to the house, those pins would be live.

On this product, the anti-islanding technology is sophisticated, and can sense within a very small amount of time if the mains has been disrupted, and then cut output.

You can still run things on the AC outputs, but those appliances must be physically connected to the Ultra X. Some expensive home battery systems can power the whole house in an emergency, but with only 800W of mains output, this isn’t one of them.

Where EcoFlow excels is with their software, which ties all the products you have into a unified logic that allows you to control what’s happening at any point. And you can build your own automations that can recharge and discharge, and interface with smart devices, like plugs.

A power management strategy

How you would configure the EcoFlow Stream Ultra X would be colored by your particular use model, and the level of efficiency you want. Overnight charging is straightforward but less efficient, and AI control is the most efficient, with manual adjustments being somewhere in the middle.

In my instance, I’m an Octopus Energy customer, and I use their Octopus Agile tariff that breaks down the day into 30-minute slices with a different cost depending on the demand at that time of day. On a typical day, there is a slight bump in prices around breakfast, followed by a cheaper period until 4 pm, when it becomes expensive until 7 pm, when it starts to get cheaper again.

Therefore, I have the battery recharge between 12 am and 4 pm, and discharge from 4 pm until it's exhausted. Each day, I can see the cost profile for the next day, published at 4 pm each day, and act accordingly.

But if you pay EcoFlow £3.40 a month, the company will entirely automate the charge low and discharge high system using AI, so you never need to think about it.

Alternatively, many providers run an Economy 7 tariff where you are given five hours every night to recharge at 7p a kWh. And, using that time window, you can build a simple automation to recharge then and discharge after 4 pm. When you consider that at peak times, power might be from 35p to over 50p a kWh, considerable savings can be made.

According to people who have tested these things, the loss of power recharging and discharging is about 10% in each trip, so if you buy power at 10p, it costs 12p to use it.

By adding solar to this mix, you can recharge for free and then use that power when the sun has gone down, if it's sufficiently sunny.

Having used this for a number of months, I’m seeing real benefits in my power consumption costs, and it's something that all homes and businesses should seriously consider.

(Image credit: EcoFlow)

The first question any business owner is likely to ask is if these tariffs are available for businesses, and often they are. I could be mistaken, but I think all UK power companies offer an equivalent to the old Economy 7 tariff, where you are allocated a block of time at low cost per kWh (like 7p) in the night, allowing that power to be delivered back to the property when the price is much higher.

The EcoFlow app enables you to define when the battery recharges and discharges, and how much wattage, up to the 800W limit, it can push back into the system.

As an Ocopus Agile customer, the prices in each 30-minute block do alter each day, both in price and in terms of when the cheapest point of the day is. If you want a fire-and-forget solution I could switch to a cheap nighttime recharge, or EcoFlow has an AI service that will look at the prices for the coming day and decide when it the best times to recharge and discharge. They charge an additional £3.90 a month for that service, and you don’t get any free time with the hardware. Intelligent Mode, as its called, promises to create the most cost effective power schedule based on solar, load, electricity rate and system status.

I’ve not yet signed up for this, but if it could save me more than another £3.90 a month, it might well be worth it.

Solar economics

But, if you always intend to have plenty of capacity to begin with, then it might be worth looking at the EcoFlow Ocean product line, or other modular home battery installations from the outset.

Solar harvest depends on panel setup and local conditions, but the four MPPT design gives the Ultra X a genuine edge over single-MPPT competitors. Where a cheaper system with one tracker might lose 15 to 20 per cent of potential harvest due to panel mismatch or partial shade, the Ultra X keeps each string performing at its individual peak. The 2,000W total solar input ceiling is generous. On a sunny day with an appropriate panel setup, you can expect to fill the 3.84 kWh battery from empty in roughly two hours.

The AI Time-of-Use system works elegantly since EcoFlow integrates with Tibber and other dynamic tariff providers. The system reads electricity prices, reads weather data, and makes genuinely intelligent decisions about when to top up from the grid and when to discharge into the home. EcoFlow’s own modelling suggests that a six-unit Ultra X setup with ten 500W solar panels could generate over 5,300 kWh annually in a central European location. For a single unit paired with two to four typical balcony panels, expect something closer to 800 to 1,500 kWh per year, depending on location and orientation.

(Image credit: Maysunsolar)

That is sufficient to meaningfully offset a household electricity bill. At European rates of around £0.35 per kWh, a single Ultra X setup could save between £350 and £550 annually. With the units costing roughly £1500 without solar panels, payback sits in the three to four-year range. That is competitive, though the Anker Solix Solarbank 2 E1600 Pro and Jackery Explorer alternatives come in cheaper and are worth comparing if budget is the primary driver. The Ultra X commands a premium for its capacity, four-MPPT design, and the quality of its AI integration. For most buyers, that premium is justified.

While not the cheapest option, EcoFlow will sell you two 450W panels for £399, and four 250W panels for £699. Therefore, with the Stream Ultra X, it is possible to have 3.84 kWh, a 900W solar input, which on a sunny day could recharge that battery for less than £2000.

If you use one of the lower-end options, like the Stream Ultra, Stream Pro, or Stream Max, the outlay could be much lower if you accept a smaller initial battery capacity.

There is nothing stopping you from buying more batteries and connecting them, though some of the range, like the Stream Max, aren’t empowered to chain to other Streams.

What’s nice is that you can add just a battery or a battery and more MPT ports for extra solar, and expand the system however you want.

• User Experience: 4 / 5

EcoFlow Stream Ultra X: Final verdict

(Image credit: Mark Pickavance)

To understand the Stream Ultra X, you need to understand the movement it belongs to. Balcony solar is no longer a niche hobbyist pursuit. It is a genuine mass-market revolution reshaping how ordinary people across Europe think about electricity.

Germany led the way. By mid-2025, over one million balcony solar systems had been registered with the German Federal Network Agency. Industry insiders believe the true installed number is two to three times higher, since many units go unregistered. In the first half of 2025 alone, more than 220,000 new systems were added. The Germans have a word for them: Balkonkraftwerke. Balcony power plants.

In the UK, the phrase plug-in solar has been coined, though to my mind this entirely misses the point of these systems. You don’t need solar panels to make this work for you, and therefore, it could be used by those renting a flat or home to reduce energy costs once the device is plugged in. And, should you move to a new location, the battery can come with you. It is the first rung on a ladder that could take you to solar, but it doesn’t need panels to be useful.

The balcony solar market is projected to grow from $500 million in 2025 to $1.8 billion by 2033, at a 15% annual growth rate. EcoFlow recognised this trajectory early. The Stream series is its answer to the question of what a premium, storage-forward balcony solar product looks like. The Ultra X, with its 3.84 kWh capacity, four-MPPT design, and AI energy management, is the most complete answer yet.

However, £1,499 is a serious investment. Some AI features need a subscription. And in the UK, there is some confusion about the plug-and-play nature of this technology based on the standards. Despite those caveats, this is the product to beat in its category, and if you wish to reduce your energy costs now, this is a highly flexible approach that doesn’t require solar panels to impact your electricity bills.

In many reviews I write for Tech Radar, the products are provided by the makers for the purpose of coverage, but in the case of EcoFlow Stream Ultra X, it's something I bought and paid for. And watching it hack chunks out of my electricity bill within weeks of arrival makes me think this purchase might not have been the worst plan I've ever had.

My advice, for what it's worth, is that anything involving electricity in the home still requires an electrician's input before you start plugging in equipment like this. But if you have a modern consumer unit, getting the battery wired correctly should be straightforward.

If you don’t have the additional expense of a new consumer unit, a piece of kit like the EcoFlow Stream Ultra X could easily pay for itself in under three years, and that’s without attaching a single solar panel to it. And that’s based on today's energy prices, which are unlikely to go down in the foreseeable future.

EcoFlow Stream Ultra X: Report card

Value

Not cheap, but highly extensible

4 / 5

Design

Clean, weatherproof, and compact for its substantial capacity

4 / 5

Features

LFP battery, four MPPTs, and smart AI management lead the field

4.5 / 5

User Experience

Delivers meaningfully on solar harvest, storage, and bill savings

4 / 5

Overall

The best balcony battery available; buy it if you can afford it

5 / 5

Should I buy a EcoFlow Stream Ultra X?Buy it if...

You want serious balcony solar storage and maximum solar harvest
The 3.84 kWh LFP battery and four independent MPPT trackers make this the most capable plug-and-play system available. If you are on a dynamic electricity tariff, the AI Time-of-Use optimisation will pay for itself. This is genuinely the product to beat in its category, and the ten-year warranty backs that confidence up.

You want to start small and then add solar
Systems like the EcoFlow Stream Ultra X enable home and business owners to start small and then add extra battery capacity and solar panels when they’re ready for them. That staggers the cost, and also means that the investment can be easily moved to another property in the future.View Deal

Don't buy it if...

You have a consumer unit wired by Telsa himself
Much of the concern that electricians have voiced about plug-in-solar stems from the poor electrical installations in older houses they encounter every day. If you have an old consumer unit, or physical fuses, then you need to address that before plugging batteries into your ring main.

You want a complete home UPS
This system isn't designed to power the entire home in the event of a power cut. A system that can do that will cost significantly more than this.

The EcoFlow Stream Ultra X is 3.84 kWh plug-and-play home battery with integrated inverter, four MPPT solar inputs, AI energy management, and IP65 weatherproofing designed for balcony installation.

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I don't know about you, but any time I spend on LinkedIn, I am then immediately drowned by AI talk by those who are replacing entire companies with AI and how quickly people can build AI. All of that building requires a device that has insane power, or, to quote Aladdin, "ultimate cosmic power." That is what it seems like we are reaching for these days with the amount of computing power we are demanding from our devices.

Depending on what you are doing, having a dedicated LLM device could be the thing that makes or breaks your profit margins or also helps you actually get work done without burning through all of your tokens in one week. The Lenovo ThinkStation PGX is designed to run an LLM locally on a machine so that you can test anything that you need to test in an AI workspace without having to run it through the cloud. This will allow for things like script testing, feature testing, model testing, etc.

Further, this is also the kind of machine that you could use as an always-on device that would be fantastic for OpenClaw or Claudbot. As I mentioned briefly above, many people rely on the Mac mini for this.

However, if you're already in the professional work space or if you prefer Windows or if you trust Lenovo already, or alternatively maybe you don't need a full desktop as well, this is a phenomenal option for those workloads, and it likely destined for inclusion in our best mini PC guide for those that need a dedicated compact AI-ready workstation.

Lenovo ThinkStation PGX: Price and availability

(Image credit: Collin Probst // Future )

The ThinkStation PGX is available across Lenovo's regional websites, including in the US where prices start at $5,079 and in the UK, priced from £5,200.

The base model comes with 1 TB storage. However, if you want to upgrade to other storage components or buy through other retailers, the price may vary. My quick research has shown that the price of this unit can easily vary between $4,800 and $5,400 depending on your configuration.

(Image credit: Collin Probst // Future )Lenovo ThinkStation PGX: Unboxing and First Impressions

The PGX makes a strong case for those who want an mini AI Workstation. There are so many people in that realm of work these days that having dedicated devices that specialize in extracting every ounce of power from components to support power-hungry software is a good thing. However, it’s not for everyone. While there is a basic desktop, it feels more like a NAS rendering than that of a true computer.

The ThinkStation PGX appears to be similar in size to a standard mini PC; for continued comparison and reference, it’s about the size of a Mac mini. All the ports are on the back; since this isn’t meant to be a desktop replacement in any way, there is no need for any ports for the user to interact with after setup.

If you are the type of person who has to ensure the reliability and dependability of AI-powered machines, such as ensuring drivers are up to date, then having a dedicated machine may be just what you need to stay sane.

Lenovo ThinkStation PGX: Design & Build Quality

The Lenovo ThinkStation PGX is fairly compact, and it’s short enough to fit under desk shelves if you want it to stay on your desk, or tuck it away in a media closet or office space. Good flexibility here for that.

No matter where you choose to put it, the result is pretty much the same. It’s not meant to be looked at, bothered with, flash with colors and lights, nor really even be bothered with once it is set up.

Design-wise, as I say, this feels minimalist and styled to look sleek and professional wherever it is used. There are no forward-facing ports, but that is of course due to the intended use case. On the back there are USB-C ports, no USB-A ports, an HDMI port, a network port, and then two expansion ports that will allow for two of these units to link together to distribute the workload you’ve created across multiple PGX’s.

Beyond the ability to link multiple together, the expandability and customization kind of stops there, so if you are the type of person who is currently using a custom tower setup for their LLMs, then this is going to feel a bit too controlled. If you are okay with the change-up from the Wild West of computer parts to something that is a bit more controlled, you will swap customization for reliability.

Lenovo ThinkStation PGX: In use

(Image credit: Collin Probst // Future )

The Lenovo ThinkStation PGX is best when used as a dedicated device for running tasks against your local LLM. The 128GB memory and the Grace Blackwell GB10 help make even complex scenarios feel snappy, much more than most people’s laptops can; that’s for sure. For those in this space, the struggle of maxing out your available GPU is a known constraint. But now with your own personal device, you won’t have to wait on anyone else or book time, or anything else of the sort.

In my experience with AI tooling, speed is a major factor. Trying to ship features with AI usually comes with the expectation of speed. Now, with your own tooling and hardware, you can get prototypes, demos, and research done without waiting.

Off the top of my head, the tools that would benefit from this the most would be things such as: running local inference on larger models, prototyping across several different models, perhaps different versions of an app, a tool, or a workflow, even other ways of teaching or tooling that require quick turnaround time to try things out and you don't want to waste time or credits.

One thing worth noting is that while this does have a ton of operational memory, storing this kind of information to run these large models will take up a lot of space. If you need more than the allotted storage, or if you don't want to pay for internal storage, you can add external storage options to host the datasets you will be using for this.

In short, utilizing something like this as a service-kind-of-model, where you tunnel in and do what you need to do and keep your day-to-day machine light, means that you could run around with a more lightweight laptop or a more practical day-to-day laptop and then utilize this machine when you need it instead of carrying this beefy machine all day long every day. That may not be the best for everything else that you do in your day-to-day work.

Lenovo ThinkStation PGX: Final verdict

(Image credit: Collin Probst // Future )

The Lenovo ThinkStation PGX is an incredibly powerful machine; however, it is probably not the machine for you unless you are in a very niche workspace. For those that this applies to, this is a fantastic tool to add to your arsenal, with more specialized capabilities and easier setup than a Mac mini. It is also more limiting than a Mac mini in some other ways.

You shouldn't buy this if you want a small desktop that can do some powerful things. If you do need a machine dedicated to running LLMs or open claw, then absolutely you should consider the Lenovo ThinkStation PGX, because in that world, this thing is a king.

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The ThinkStation PGX is a powerful and compact desktop unit designed to operate as a personal AI kind of machine. Hosting Local LLMS, OpenClaw, and the likes. Lenovo also knows its client base well enough to know that they should allow for removing it, tunneling as needed, and a set-it-and-forget-it kind of dependability.

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I've always had a soft spot for the office furniture put out by Ergonofis - the company seems to blend clean, modern styles with good functionality. So, my hopes were high for the Equation.

This is a well-designed and practical office chair, suitable for both office and home office settings. And I really like just how simple this was to put together.

After 170 days testing, I found it a comfortable sit. However, the unique weight activation prevents it from charting in our best office chair guide - I got used to it, but I understand many won't like it.

Having said that, there's no denying this is one of the more attractive offerings in the chair arena, reminding me of a more office-ready version of the Branch Verve.

Ergonofis Equation: Price and availability

(Image credit: Collin Probst // Future )

The Equation by Ergonofis is priced at $995 direct from the Ergonofis website.

Now, as I say, I've had this chair in my fleet of seats for almost six months. During that time, I have seen this chair sell out more often than not.

And that's true now. At the time of review, it's completely sold out. However, there is a “notify me when available” banner on the website.

To my mind, that this office chair keeps selling out tells you a lot about the quality here.

(Image credit: Collin Probst // Future )Ergonofis Equation: Unboxing and First Impressions

I assemble a lot of chairs, so when I get one like this that is super simple assembly, I am very thankful. It took a total of four screws and only about 3 steps.

I found the base with casters already installed, which was super nice; then I added the piston, the base, screwed on the back, and called it a day. Again, that kind of assembly is wild and so appreciated.

The materials themselves feel minimal, yet not cheap. They feel quality, not luxury, and all around, something that, at the end of the day, I actually appreciate.

Ergonofis Equation: Design & Build Quality

I care a lot about how chairs look. I see enough to have strong opinions. This chair looks very sharp. The two-tone look, the light marble colorways, and even the unique seat material all make up a very elegant-looking chair. Something that would work perfectly with a light desk and a walnut desktop.

It’s that kind of vibe: clean, minimalist, simple, yet elegant. The seat itself feels like a soft woven textile, not a mesh seat that feels like it’s trapped everything from the last 12 years inside. But rather it feels comfortable and cool while still breathable.

The armrests are pretty mobile and connect to the back lower lumbar of the chair. Originally, I was concerned that this would make them weaker or squeakier than if they were connected by the chair's thighs. But, in all of my testing over the last several months, my team and I have yet to experience any issues, even pushing down on the armrests to stand up.

I did have concerns about something like dark denim transferring color onto this chair, but thankfully I have yet to experience this, and that concern continues to fade with every passing day.

Ergonofis Equation: In use

(Image credit: Collin Probst // Future )

My team and I have used this chair for up to eight hours on end, and it has stayed comfortable the entire time. Altogether, we agree that we love the material on the seat; it's something we have never seen on other chairs.

We also love how adjustable the armrests are, so we can adjust them for whatever task we are doing. If we're sitting at a desk, it adjusts. If we are sitting in a circle during a meeting, it adjusts. If we want to adjust our desk to be a little higher for a different kind of work, like focused writing or drawing, we can do that. If we want to lower it down, we can do that. These armrests adjust with everything.

Furthermore, we can adjust the backrests to do the same. If we want the option to lean back a little more, we can, or sit up; we can do that and provide good comfort and stability for all-day work.

Ergonofis Equation: Final verdict

(Image credit: Collin Probst // Future )

Whether this is the right office chair for you will depending on several factors. For anyone who likes the breathability of a pure mesh seat, this won't be ideal. Nor will it sit right with those who prefer models with a leg rest or more adjustable knobs for fine-tuning. And if you need to push up off the armrests to help yourself in and out of the chair every single day, I would consider something else.

But if you're the kind of person who likes this sheer white design, or the clean, modern stylings, it's an absolute no-brainer. For me, the Equation is the chair to choose when you want office furniture that's not afraid to stand out from the crowd a little more.

For more office furniture, we've tested the best standing desks.