Big-capacity backup or tiny travel pack? The clear winner is obvious

Display

Winner: Anker SOLIX C1000 Gen 2

The Anker is the more capable and informative unit by default because premium power stations in this class typically offer a far better screen, clearer wattage readouts, battery percentage, input/output status, and app-based monitoring. That matters when you are managing real loads like kettles, laptops, routers, or a small fridge during a power cut. The Powkey is much more basic: at this price and capacity, expect a simpler display and fewer live diagnostics. For renters and flat-dwellers who want to understand exactly what is being drawn and how much runtime remains, Anker wins easily.

Performance

Winner: Anker SOLIX C1000 Gen 2

This is the biggest mismatch in the comparison. The Anker delivers 2,000W continuous output with a 3,000W surge, which puts it in the territory of genuinely useful household backup power. Its 1,024Wh LiFePO4 battery is large enough to recharge phones many times, run a Wi-Fi router for hours, power a laptop all day, or support moderate appliances. The claimed full charge in 49 minutes is a major advantage if you want rapid turnaround from mains or a strong solar array. By contrast, the Powkey’s 99Wh capacity and 100W output are only suitable for low-power electronics: phones, tablets, LED lights, a small fan, or topping up a laptop. It is not a true home-backup solution, and its output ceiling makes it unsuitable for most appliances. If performance is the priority, this is not close.

Build quality and design

Winner: Anker SOLIX C1000 Gen 2

Anker has the stronger reputation for robust electronics, and the SOLIX line is built for heavier daily use. The use of LiFePO4 chemistry is a key quality marker: it is generally safer, more heat-tolerant, and longer-lived than the NMC cells often found in cheaper power stations. That matters if you plan to cycle it frequently for home backup or camping. The Powkey’s smaller, lighter design is convenient for travel, but it is also a budget product with far less thermal headroom, lower output capability, and a less substantial overall feel. For long-term ownership, the Anker is the better-engineered product.

Battery life

Winner: Anker SOLIX C1000 Gen 2

Battery life should be judged in two ways: total stored energy and cycle durability. On stored energy alone, 1,024Wh versus 99Wh is a landslide. The Anker has more than ten times the capacity, so it can support real usage rather than just emergency top-ups. On chemistry, LiFePO4 is again the winner because it usually supports many more charge cycles than the kind of battery used in low-cost compact units. The Powkey’s 99Wh rating is useful for portability and airline-friendly travel, but it is not built for extended off-grid use. If you want something that can actually carry you through a blackout or a weekend away, the Anker wins decisively.

Price and value for money

Winner: Depends on use case, but overall Anker SOLIX C1000 Gen 2

At £80.74, the Powkey is dramatically cheaper, and for very light users that can be compelling. If you only need a backup for phones, earbuds, a tablet, or occasional USB charging, paying £599 for the Anker would be overkill. However, value is not just about the upfront price; it is about what you can actually do with the device. The Anker’s extra £518.26 buys vastly more capacity, much higher output, faster recharging, better suitability for home backup, and a more durable battery chemistry. For anyone who needs more than a glorified power bank, the Anker is far better value per usable watt-hour and per watt of output.

Game library/features

Winner: Anker SOLIX C1000 Gen 2

Neither product is about gaming features, but in practical terms the Anker supports a much wider range of “features” that matter to real users: higher-wattage AC outlets, stronger solar charging potential, app monitoring, and the ability to power more demanding devices at once. That makes it far more versatile for renters, flat-dwellers, and campers who want one unit to cover outages, work-from-home needs, and outdoor trips. The Powkey’s feature set is basic: AC/DC/USB/Type-C outputs and a compact form factor. Useful, yes, but limited. If you want a power station that feels like a proper energy tool rather than a charger pack, the Anker wins.

Overall user experience

Winner: Anker SOLIX C1000 Gen 2

The Anker is the more reassuring and flexible product to live with. It is the one you buy when you want confidence during a power cut, the ability to charge multiple devices quickly, and enough output to handle real-world household essentials. The Powkey is easier to carry and easier on the wallet, but its tiny 99Wh battery and 100W ceiling mean you will constantly run into limits. For UK renters and flat-dwellers, the Anker is especially attractive because it gives meaningful backup power without needing installation or landlord permission. The Powkey makes sense only if portability and price matter far more than capability.

Overall summary: the Anker SOLIX C1000 Gen 2 is the clear winner for almost everyone. It offers vastly more capacity, far higher output, faster charging, and a much more serious battery chemistry, making it suitable for outages, camping, and genuine home backup. The Powkey is only the better buy if your budget is tight and you need a tiny, lightweight charger for phones and small gadgets, not a real power station.