EcoFlow DELTA 3 Ultra vs Goal Zero Yeti 700
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
Goal Zero Yeti 700 costs $1000 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Ultra holds 354% more energy (3072Wh vs 677Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Ultra has 6200W more surge headroom (7200W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Goal Zero Yeti 700 is 63.5 lb lighter (20.3 lb vs 83.8 lb).
EcoFlow DELTA 3 Ultra
3kWh with 7200W surge at $1799 — this is whole-home territory at a mid-range price. The catch is the 800W solar input.
Best for: Grid-tied home backup where you recharge from the wall, not the sun.
Where it falls short:
- 800W solar input is low for 3kWh — slow off-grid refills
- 83.8 lb
Goal Zero Yeti 700
The largest of the rugged compacts. Still not an appliance unit — 600W of output caps what it can drive — but a durable mid-size companion.
Best for: Rugged off-grid use where durability outranks running heavy loads.
Where it falls short:
- 600W output rules out compressors and heaters
- 20.3 lb is heavy for 677Wh
| Spec | EcoFlow DELTA 3 Ultra | Goal Zero Yeti 700 |
|---|---|---|
| Price | $1799 | $799 |
| Capacity | 3072 Wh | 677 Wh |
| Continuous output | 3600 W | 600 W |
| Surge output | 7200 W | 1000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 4,000 |
| Weight (lighter wins) | 83.8 lb | 20.3 lb |
| Max solar | 800 W | 300 W |
| Recharge time (faster wins) | 1h 30m | 2h |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Ultra | Goal Zero Yeti 700 |
|---|---|---|
| Refrigerator | 43.5 hrs | 9.6 hrs |
| Mini fridge | 82.9 hrs | 18.3 hrs |
| Chest freezer | 32.6 hrs | 7.2 hrs |
| CPAP machine | 65.3 hrs | 14.4 hrs |
| Sump pump | 3.3 hrs | ❌ |