EcoFlow DELTA Pro 3 vs Bluetti Apex 300
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
Bluetti Apex 300 costs $2100 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro 3 holds 48% more energy (4096Wh vs 2764Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro 3 has 320W more surge headroom (8000W vs 7680W) — that decides whether a fridge, pump or AC compressor will actually start.
- Bluetti Apex 300 is 33.6 lb lighter (79.4 lb vs 113 lb).
- Bluetti Apex 300 is rated for 6,000 cycles vs 4,000 — meaningful if you cycle it daily.
EcoFlow DELTA Pro 3
The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.
Best for: Whole-home backup buyers who want maximum solar recharge speed.
Where it falls short:
- $3,699 is a serious investment
- Overkill unless you're backing up a whole home
Bluetti Apex 300
6000 cycles at 2764Wh — the best long-term cost-per-kWh in this list if you cycle daily. Bluetti's answer to the Elite 200 V2 at scale.
Best for: Off-grid solar setups where daily cycling makes lifespan the dominant cost.
Where it falls short:
- 79.4 lb
- Newer product with limited long-term field data
| Spec | EcoFlow DELTA Pro 3 | Bluetti Apex 300 |
|---|---|---|
| Price | $3699 | $1599 |
| Capacity | 4096 Wh | 2764 Wh |
| Continuous output | 4000 W | 3840 W |
| Surge output | 8000 W | 7680 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 6,000 |
| Weight (lighter wins) | 113 lb | 79.4 lb |
| Max solar | 2600 W | 2600 W |
| Recharge time (faster wins) | 1h 40m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro 3 | Bluetti Apex 300 |
|---|---|---|
| Refrigerator | 58.0 hrs | 39.2 hrs |
| Mini fridge | 110.5 hrs | 74.6 hrs |
| Chest freezer | 43.5 hrs | 29.4 hrs |
| CPAP machine | 87.0 hrs | 58.7 hrs |
| Sump pump | 4.4 hrs | 2.9 hrs |