EcoFlow RIVER Max vs Goal Zero Yeti 500X
Two mid-size power stations, number by number. Neither is ranked above the other. Every spec comes from each maker's manual or product page; tap a station for the source.
- Bigger battery: EcoFlow RIVER Max, 576 Wh vs 497 Wh.
- More AC output: EcoFlow RIVER Max, 600 W vs 300 W.
- Higher surge: about the same (1,200 W vs 1,200 W).
- More solar input: EcoFlow RIVER Max, 200 W vs 150 W.
- Higher solar voltage limit: EcoFlow RIVER Max, 25 V vs 22 V.
- Lighter: Goal Zero Yeti 500X, 12.9 lb vs 17 lb.
- Lower brand-store price: EcoFlow RIVER Max, $449 vs $500.
RIVER Max and Yeti 500X are the same size class: within 79 Wh of each other. Yeti 500X is the lightest at 12.9 lb. RIVER Max takes the most solar at 200 W, so it refills fastest. RIVER Max is the cheapest at $449, and it also leads on solar input.
How long they run common devices
| Device | EcoFlow RIVER Max | Goal Zero Yeti 500X |
|---|---|---|
| Fridge (60 W) | 8 hours | 7 hours |
| CPAP (40 W) | 12 hours | 11 hours |
| Starlink (100 W) | 5 hours | 4 hours |
| Laptop (60 W) | 8 hours | 7 hours |
On a full charge, assuming 85% of the battery is usable. Real devices vary; check the label on yours.
Every spec side by side
| Spec |  EcoFlow |  Goal Zero |
|---|---|---|
Battery Wh, size | 576 Wh fridge about 8 hours | 497 Wh fridge about 7 hours |
AC output W, continuous | 600 W Fridge, CPAP, laptops, lights | 300 W CPAP, laptops, lights, phones |
Surge W, a second or two | 1,200 W motor start-ups | 1,200 W motor start-ups |
Solar input W, max | 200 W full in about 4 hours | 150 W full in about 4.5 hours |
Solar voltage range V, panels must fit | 10 to 25 V 1 panel, or 2 in parallel | 13 to 22 V 1 panel, or 2 in parallel |
Solar inputs count | 1 input Solar input | 1 input 8mm |
Weight lb | 17 lb one hand | 12.9 lb one hand |
Wh per pound battery for the weight | 34 Wh/lb higher is denser | 39 Wh/lb higher is denser |
Price brand store | $449 0.78 $/Wh | $500 1.01 $/Wh |
Price per Wh what you pay for storage | $0.78 lower is better value | $1.01 lower is better value |
| Buy | $449 · Details Brand store, Oct 28, 2026 | $500 · Details Brand store, Oct 28, 2026 |
Which solar panels work with each
Our checker at 20°F, using each maker's voltage and current rules. Tap a verdict for the wiring and cables.
Where to buy
Out of stock at the EcoFlow store when we checked
Out of stock at the Goal Zero store when we checked
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