EcoFlow DELTA 3 Ultra vs UDPOWER S1200
Comparing EcoFlow DELTA 3 Ultra vs UDPOWER S1200: EcoFlow DELTA 3 Ultra scores 9.2/10 and UDPOWER S1200 scores 8.9/10 in our benchmark testing. EcoFlow DELTA 3 Ultra wins overall — EcoFlow DELTA 3 Ultra scores higher on power and features while UDPOWER S1200 offers better value.
EcoFlow DELTA 3 Ultra (4096Wh) vs UDPOWER S1200 (1190Wh) compared spec-by-spec. Real-world testing, pricing, pros, cons, and our verdict on which power station to buy.
| Specification | ||
|---|---|---|
| Capacity | 4,096Wh ✓ Winner | 1,190Wh |
| AC Output | 4,000W ✓ Winner | 1,200W |
| Surge Output | 8,000W ✓ Winner | 1,800W |
| Weight | 75 lbs | 26 lbs ✓ Winner |
| Dimensions | 25.6 x 11.4 x 13.4 in | 13.7 x 9.5 x 9.7 in |
| Battery Type | LiFePO4 | LiFePO4 |
| Cycle Life | 4,000 cycles | 4,000 cycles |
| AC Charge Time | 56 min (0-80%) | 90 min (fast mode) |
| Max Solar Input | 2,400W ✓ Winner | 400W |
| AC Outlets | 6 ✓ Winner | 5 |
| USB-C Ports | 2 | 2 |
| USB-A Ports | 2 | 4 ✓ Winner |
| DC Outlets | 2 | 3 ✓ Winner |
| Expandable | Yes | No |
| Max Expanded | 46,080Wh | — |
| Operating Temp | 32-113F | 32-104F |
| Warranty | 5 years | 5 years |
| App Control | Yes | No |
| Wireless Charging | — | Yes |
| Ups Switchover Ms | — | 10 |
Buy the EcoFlow DELTA 3 Ultra
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Buy the UDPOWER S1200
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Who Should Buy the EcoFlow DELTA 3 Ultra?
The EcoFlow DELTA 3 Ultra is the right choice for emergency home backup, off grid cabin, rv boondocking. With 4,096Wh of capacity and 4,000W continuous output, it delivers serious power for demanding loads.
Key advantages include: massive 4,096wh capacity with lifepo4 longevity; 56-minute fast charging to 80%; expandable up to 46kwh for whole-home backup. At 75 lbs, expect to use the included wheels and handle for most moves.
Priced at $2,999 (MSRP $3,699), the EcoFlow DELTA 3 Ultra scores 9.2/10 overall in our benchmark testing — making it one of the top-rated units in its class.
Who Should Buy the UDPOWER S1200?
The UDPOWER S1200 is the right choice for under 2000, rv boondocking, home backup essentials. With 1,190Wh of capacity and 1,200W continuous output, it delivers serious power for demanding loads.
Key advantages include: 5 ac outlets + <10ms ups switchover at $349-399 — class-leading combination; 400w solar input matches the 1kwh leaders; 15 simultaneous charging ports including wireless pad. At 26 lbs, it's genuinely portable.
Priced at $399 (MSRP $699), the UDPOWER S1200 scores 8.9/10 overall in our benchmark testing — making it a strong performer for most users.
How Do the Specs Compare?
Capacity: The EcoFlow DELTA 3 Ultra leads on storage with 4,096Wh versus 1,190Wh for the UDPOWER S1200 — a 244% difference that matters most for overnight or multi-day use cases.
Output: The EcoFlow DELTA 3 Ultra delivers more continuous power at 4,000W vs 1,200W, which determines what appliances you can run simultaneously — things like air conditioners, microwaves, and power tools that demand 1,000W or more.
Portability: The UDPOWER S1200 is lighter at 26 lbs vs 75 lbs for the EcoFlow DELTA 3 Ultra. That's a significant weight gap — meaningful for anyone moving the unit frequently.
Price: The UDPOWER S1200 costs $399 while the EcoFlow DELTA 3 Ultra runs $2,999 — a $2,600 gap. At that price difference, the more expensive unit needs to deliver meaningfully better performance to justify the premium.
Battery longevity: Both units are rated for 4,000 cycles, putting them on equal footing for long-term ownership.
🏆 Our Verdict
Choose the EcoFlow DELTA 3 Ultra if you need maximum capacity (4,096Wh vs 1,190Wh) , expandability for future growth, and higher power output (4,000W).
Choose the UDPOWER S1200 if you prioritize value (typically $2,600 less) , portability (26 lbs vs 75 lbs) .
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