EcoFlow DELTA 3 Ultra vs UDPOWER S2400
Comparing EcoFlow DELTA 3 Ultra vs UDPOWER S2400: EcoFlow DELTA 3 Ultra scores 9.2/10 and UDPOWER S2400 scores 9/10 in our benchmark testing. EcoFlow DELTA 3 Ultra wins overall — EcoFlow DELTA 3 Ultra scores higher on power and features while UDPOWER S2400 offers better value.
EcoFlow DELTA 3 Ultra (4096Wh) vs UDPOWER S2400 (2083Wh) compared spec-by-spec. Real-world testing, pricing, pros, cons, and our verdict on which power station to buy.
| Specification | ||
|---|---|---|
| Capacity | 4,096Wh ✓ Winner | 2,083Wh |
| AC Output | 4,000W ✓ Winner | 2,400W |
| Surge Output | 8,000W ✓ Winner | 3,000W |
| Weight | 75 lbs | 40.8 lbs ✓ Winner |
| Dimensions | 25.6 x 11.4 x 13.4 in | 15.8 x 9.5 x 10.1 in |
| Battery Type | LiFePO4 | LiFePO4 |
| Cycle Life | 4,000 cycles ✓ Winner | 3,000 cycles |
| AC Charge Time | 56 min (0-80%) | 40 min (10-90%) |
| Max Solar Input | 2,400W ✓ Winner | 400W |
| AC Outlets | 6 | 6 |
| 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 S2400
Best prices · Updated hourly
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 S2400?
The UDPOWER S2400 is the right choice for over 2000, home backup essentials, whole home backup. With 2,083Wh of capacity and 2,400W continuous output, it delivers serious power for demanding loads.
Key advantages include: $699 sale price at 2,083wh undercuts ecoflow delta 2 max ($1,199) and bluetti ac200p ($899) by 25-50%; 10-90% in 40 minutes is among the fastest 2kwh ac charge speeds; 6 ac outlets + 2,400w continuous handles induction cooktops, microwaves, window ac. At 40.8 lbs, it balances capacity with manageable weight.
Priced at $700 (MSRP $1,600), the UDPOWER S2400 scores 9/10 overall in our benchmark testing — making it one of the top-rated units in its class.
How Do the Specs Compare?
Capacity: The EcoFlow DELTA 3 Ultra leads on storage with 4,096Wh versus 2,083Wh for the UDPOWER S2400 — a 97% 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 2,400W, 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 S2400 is lighter at 40.8 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 S2400 costs $700 while the EcoFlow DELTA 3 Ultra runs $2,999 — a $2,299 gap. At that price difference, the more expensive unit needs to deliver meaningfully better performance to justify the premium.
Battery longevity: The EcoFlow DELTA 3 Ultra is rated for 4,000 cycles versus 3,000 — at one cycle per day, that's 11 vs 8 years of daily use.
🏆 Our Verdict
Choose the EcoFlow DELTA 3 Ultra if you need maximum capacity (4,096Wh vs 2,083Wh) , expandability for future growth, and higher power output (4,000W).
Choose the UDPOWER S2400 if you prioritize value (typically $2,299 less) , portability (40.8 lbs vs 75 lbs) .
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