Display

Winner: Anker SOLIX C1000

The Anker is built like a premium full-size power station, and that usually means a much better screen experience: larger status display, clearer wattage readouts, battery percentage, input/output monitoring, and app-based control on many SOLIX models. That matters when you’re managing real loads, because you want to see exactly how much power your kettle, router, fan, or fridge is drawing. The Powkey is typically far more basic, with a simpler display or indicator setup aimed at charging status rather than detailed energy management. For anyone using solar input or balancing multiple devices, Anker’s monitoring is the more useful and confidence-inspiring option.

Performance

Winner: Anker SOLIX C1000

This is the biggest separation in the whole comparison. The Anker delivers 1800W continuous output with a 2400W peak, which puts it in a category that can genuinely run demanding appliances: laptops, monitors, routers, CPAP machines, mini-fridges, and many kitchen devices. Its 1056Wh LiFePO4 battery is also a major advantage, because LiFePO4 chemistry generally offers better cycle life, thermal stability, and long-term value than the smaller consumer-grade cells usually found in budget units. The Powkey’s 100W output is fine for charging phones, cameras, power banks, and small USB devices, but it cannot touch the Anker for real-world utility. If you need to power anything beyond low-wattage electronics, the Powkey simply isn’t in the same league.

Build quality and design

Winner: Anker SOLIX C1000

Anker has the stronger reputation for robust construction, sensible thermal design, and reliable inverter performance. The C1000 is designed as a proper home-backup and outdoor power solution, so it usually includes better ventilation, sturdier ports, and a more premium internal architecture. The Powkey is much more compact and lightweight, which is useful for portability, but that small form factor comes with obvious compromises in cooling, output capability, and overall durability under load. If you want something you can keep in a flat, use during outages, and trust for repeated charging cycles, Anker is the more serious machine.

Battery life

Winner: Anker SOLIX C1000

Battery life should be judged in two ways: how long it runs devices per charge and how long the battery lasts over years. On both counts, the Anker wins. With 1056Wh, it has more than ten times the energy storage of a 99Wh unit, so it can run small appliances for hours rather than minutes. It also uses LiFePO4 chemistry, which is the preferred choice for longevity and safety in this category, especially for frequent cycling. The Powkey’s 99Wh capacity is useful for emergency top-ups and travel, but it is inherently limited by its size and is best thought of as a large power bank with AC outlets rather than a true home power station.

Price and value for money

Winner: Tie, depending on use case

At £599, the Anker is expensive, but the price is justified if you need serious output, long battery life, and backup capability. It replaces the need for multiple smaller devices and can actually keep essential home equipment running during an outage. At £80.74, the Powkey is far cheaper and looks like excellent value on paper, but only if your needs are modest. For basic phone charging, travel, fishing trips, and occasional emergency use, it is a sensible budget buy. For anything approaching household resilience, the Powkey’s low price is offset by its very limited power ceiling. So in pure value terms, the winner depends entirely on the job: Anker for capability, Powkey for cheap portability.

Game library/features

Winner: Anker SOLIX C1000

For power stations, the equivalent of a “feature set” is output variety, solar compatibility, app monitoring, fast charging, and usable AC/DC/USB ports. The Anker is the clear winner because it is designed as a full-featured solar generator with fast recharge capability, optional solar panel support, and a much broader set of practical use cases. The 58-minute full charge claim is especially important: it means you can top up quickly from mains when needed, which is a huge advantage for emergency preparedness. The Powkey usually offers a basic mix of AC/DC/USB/USB-C outputs, but with only 100W output, those ports are for convenience rather than serious load management. Anker’s feature set is much more mature and future-proof.

Overall user experience

Winner: Anker SOLIX C1000

The Anker feels like a product you buy once and rely on for years. It is better for UK renters and flat-dwellers who want a no-fuss backup for routers, lighting, charging, and short-term power security during outages, and it also scales better if you later add solar input. The Powkey is easier to carry, cheaper to replace, and less intimidating for casual users, but its limited capacity and 100W ceiling make it a niche accessory rather than a true power solution. If you want peace of mind and real-world usefulness, the Anker delivers a far better ownership experience.

Overall summary: the Powkey 99Wh is the better ultra-budget travel pack for light-duty charging, but the Anker SOLIX C1000 is the overwhelmingly better product for anyone who wants genuine backup power, solar readiness, and long-term value. If you are choosing one to actually solve power-outage anxiety or run meaningful loads, buy the Anker. If you only need a small emergency charger for phones and gadgets, the Powkey is enough.