EcoFlow DELTA 3 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 July 29, 2026

The short answer

EcoFlow DELTA 3 costs $150 less. Whether that gap is worth closing depends on what you need to run.

EcoFlow DELTA 3 holds 51% more energy (1024Wh vs 677Wh), so it runs the same load proportionally longer.
EcoFlow DELTA 3 has 2600W more surge headroom (3600W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
Goal Zero Yeti 700 is 8.4 lb lighter (20.3 lb vs 28.7 lb).

⚠️ Before you buy

We'd skip the Goal Zero Yeti 700 in this matchup. It costs $150 more than the EcoFlow DELTA 3 while matching or trailing it on capacity, surge and cycle life — there's no spec here that justifies the premium.

EcoFlow DELTA 3

The 1kWh class got a serious upgrade here. 3600W surge at $649 beats the older DELTA 2 on every axis that matters.

Best for: Anyone about to buy a DELTA 2 — this is the same money for materially better specs.

Where it falls short:

Still only 1024Wh
Solar input unchanged at 500W

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	Goal Zero Yeti 700
Price	$649	$799
Capacity	1024 Wh	677 Wh
Continuous output	1800 W	600 W
Surge output	3600 W	1000 W
Battery	LiFePO4	LiFePO4
Rated cycles	4,000	4,000
Weight (lighter wins)	28.7 lb	20.3 lb
Max solar	500 W	300 W
Recharge time (faster wins)	56 min	2h

Runtime head-to-head

Appliance	EcoFlow DELTA 3	Goal Zero Yeti 700
Refrigerator	14.5 hrs	9.6 hrs
Mini fridge	27.6 hrs	18.3 hrs
Chest freezer	10.9 hrs	7.2 hrs
CPAP machine	21.8 hrs	14.4 hrs
Sump pump	1.1 hrs	❌

EcoFlow DELTA 3
Price → Goal Zero Yeti 700
Price →