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EcoFlow Delta Pro 3 vs Bluetti Apex 300 (2026): Which to Buy?

Specs head-to-head

SpecEcoFlow Delta Pro 3Bluetti Apex 300
Capacity4096 Wh2764 Wh
Continuous Output4000 W3840 W
Surge Output8000 W7680 W
Weight113.5 lbs81.6 lbs
Battery ChemistryLiFePO4LiFePO4
Cycle Life4000 cycles6000 cycles
Recharge Time60 min90 min
Max Solar Input2600 W2400 W
EcoFlow Delta Pro 3

EcoFlow Delta Pro 3

EcoFlow · Delta Pro 3

4096 Wh · 4000W output · 113.5 lbs

$2599.00
In Stock
Bluetti Apex 300

Bluetti Apex 300

Bluetti · Apex 300

2764 Wh · 3840W output · 81.6 lbs

$1699.00
In Stock

Both are dual-voltage (120/240V) flagships built to back up a home through a transfer switch, so this is a question of capacity-and-expansion versus longevity-and-value.

The EcoFlow scales bigger. 4,096Wh versus 2,764Wh out of the box, 4,000W output, and expandability to a massive 48kWh make the Delta Pro 3 the choice if you're protecting a whole house or planning a large off-grid system. Its 2,600W solar input is also enormous.

The Bluetti lasts longer per dollar. Its standout is a 6,000-cycle battery — 50% more than the Delta Pro 3's 4,000, and the highest in our entire lineup (why that's the value spec). With 3,840W output and 7,680W surge it still runs essentially anything; you're trading top-end capacity for a longer service life and usually a lower price.

Full reviews: EcoFlow Delta Pro 3 (currently $2599.00) · Bluetti Apex 300 (currently $1699.00).