The short answer
EcoFlow recharges dramatically faster and has the best app in the category. Anker SOLIX gives you more capacity per dollar and better thermal engineering, plus the only balcony solar battery among the majors.
Choose on recharge frequency. Constant rotation favours EcoFlow; a unit that sits charged waiting for an outage favours Anker.
On the figures below. Capacity and output are manufacturer specifications. Expect 80–90% of rated capacity in real use after inverter losses, and less in cold weather. We say where a brand wins and where it loses — including when that is not the one paying us most.
Head to head
| EcoFlow | Anker SOLIX | |
|---|---|---|
| Recharge speed | Substantially faster | Average |
| App | Best in class | Good |
| Capacity per dollar | Lower | Better |
| Build and thermals | Good | Excellent |
| Whole-home option | Delta Pro | F3800 |
| Balcony solar storage | Stream series | Solarbank |
Both have a plug-in solar answer
Unusually, these two are the only majors that do. EcoFlow’s Stream ties panels, storage and app control into one system; Anker’s Solarbank pairs balcony panels with a battery. If plug-in solar is where you are heading, both are credible and the rest of the field is not.
Which to buy
- You recharge constantly → EcoFlow. The speed compounds.
- It sits charged for outages → Anker. Pay for capacity, not speed you will not use.
- Balcony solar with storage → either; Anker’s Solarbank is the more focused product.
- Most watt-hours per dollar → neither. Bluetti or OUPES.
See also: EcoFlow range · Anker SOLIX range · Bluetti vs EcoFlow.