EcoFlow RIVER 3 vs Segway Cube 1000
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
EcoFlow RIVER 3 costs $560 less. Whether that gap is worth closing depends on what you need to run.
- Segway Cube 1000 holds 318% more energy (1024Wh vs 245Wh), so it runs the same load proportionally longer.
- Segway Cube 1000 has 3800W more surge headroom (4400W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 3 is 20.6 lb lighter (7.8 lb vs 28.4 lb).
EcoFlow RIVER 3
A glorified power bank with AC outlets — and that's fine if that's what you need. 245Wh runs devices, not appliances.
Best for: Weekend campers charging phones, cameras and a laptop.
Where it falls short:
- 300W output rules out anything with a heating element
- No expansion path
Segway Cube 1000
Segway's stackable home unit brings a strong 2,200W output at 1kWh and a modular design, though the cube form factor is bulkier than flat rivals.
Best for: Buyers who want a stackable, expandable home system starting at 1kWh.
Where it falls short:
- Bulky cube shape
- 3-year warranty
| Spec | EcoFlow RIVER 3 | Segway Cube 1000 |
|---|---|---|
| Price | $239 | $799 |
| Capacity | 245 Wh | 1024 Wh |
| Continuous output | 300 W | 2200 W |
| Surge output | 600 W | 4400 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 7.8 lb | 28.4 lb |
| Max solar | 110 W | 700 W |
| Recharge time (faster wins) | 1h | 1h 20m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 3 | Segway Cube 1000 |
|---|---|---|
| Refrigerator | ❌ | 14.5 hrs |
| Mini fridge | 6.6 hrs | 27.6 hrs |
| Chest freezer | ❌ | 10.9 hrs |
| CPAP machine | 5.2 hrs | 21.8 hrs |
| Sump pump | ❌ | 1.1 hrs |