
4–2 on comparable metrics
BLUETTI Elite 300 vs EcoFlow DELTA 3 Ultra
Elite 300 leads on 4 of the 9 metrics both units publish; DELTA 3 Ultra leads on 2; 3 are level or not directly comparable. Capacity is within 2%, so this is a like-for-like decision rather than a size mismatch.

Pick this if
BLUETTI Elite 300
- Weight: 58.0 lb vs 72.1 lb
- List price: $1,099 vs $1,399
- Cost per watt-hour: $0.36 vs $0.46
- Watt-hours per pound: 52.0 Wh/lb vs 42.6 Wh/lb
Buyers who measure value in watts and watt-hours, not in grams and app screens.
Pick this if
EcoFlow DELTA 3 Ultra
- Capacity: 3,072 Wh vs 3,014 Wh
- Continuous AC output: 3,600 W vs 2,400 W
Buyers who want one system to grow from camping into home backup.
Spec by spec
A green arrow marks the better figure on each row. Rows where only one unit publishes a number are shown without a winner rather than guessed.
| Metric | Elite 300 | DELTA 3 Ultra | What it means |
|---|---|---|---|
| Capacity | 3,014 Wh | 3,072 Wh | How much energy the unit stores. Sets how long everything else can run. |
| Continuous AC output | 2,400 W | 3,600 W | The largest load the inverter will run continuously, not counting surge. |
| Weight lower is better | 58.0 lb | 72.1 lb | The spec buyers most often regret ignoring. |
| List price lower is better | $1,099 | $1,399 | Vendor list price at the time of collection; street prices move. |
| Cost per watt-hour lower is better | $0.36 | $0.46 | Price divided by capacity. The fairest single value metric. |
| Watt-hours per pound | 52.0 Wh/lb | 42.6 Wh/lb | Capacity you get per pound carried. |
| Max solar input | — | 3,200 W | Caps how large an array is useful, and therefore off-grid recharge speed. |
| UPS switchover lower is better | 10 ms | — | How long the unit takes to switch to battery. Under 20 ms keeps a desktop alive. |
| Warranty | 60 months | 60 months | Stated warranty length from the vendor listing. |
How each one ranks overall
BLUETTI Elite 300
- #8 of 73 for Best value (Wh per dollar) ($0.36)
- #5 of 74 for Most portable (Wh per pound) (52.0 Wh/lb)
- #67 of 75 for Most inverter headroom (80 W/100Wh)
- #34 of 72 for Most output per dollar (2.18 W/$)
- #3 of 75 for Best for home backup (82/100)
- #26 of 75 for Longest warranty (60 mo)
EcoFlow DELTA 3 Ultra
- #18 of 73 for Best value (Wh per dollar) ($0.46)
- #18 of 74 for Most portable (Wh per pound) (42.6 Wh/lb)
- #40 of 75 for Most inverter headroom (117 W/100Wh)
- #3 of 55 for Highest solar input (3.2 kW)
- #24 of 72 for Most output per dollar (2.57 W/$)
- #20 of 75 for Best for home backup (67/100)
- #20 of 75 for Longest warranty (60 mo)
- #5 of 27 for Quietest under load (25 dB)
The brands behind them
BLUETTI
The value-and-power buyer who does not mind a heavy box
Best for: Buyers who measure value in watts and watt-hours, not in grams and app screens.
Not for: Buyers who need the lightest possible unit or the simplest possible interface.
Full BLUETTI profile →EcoFlow
The tech-forward buyer who reads the spec sheet and wants room to grow
Best for: Buyers who want one system to grow from camping into home backup.
Not for: Buyers who want the lowest cost per watt-hour and will never use an app.
Full EcoFlow profile →Where these numbers come from. Every figure on this page is taken from BLUETTI’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: www.bluettipower.com/products/elite-300-portable-power-station.
Vendor wording for each figure (5)
capacityWh: “3,014.4 Wh”acOutputW: “2,400 W of power”weight: “About 26.3 kg/57.98 lbs”upsSwitchoverMs: “10 ms UPS”warrantyMonths: “5 years”
Where these numbers come from. Every figure on this page is taken from EcoFlow’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: us.ecoflow.com/products/ecoflow-delta-3-ultra-portable-power-station-3072wh.
Vendor wording for each figure (5)
capacityWh: “Rated Capacity => 3072Wh 51.2V 60Ah”acOutputW: “3600W total (surge 7200W)”weight: “Net Weight => 32.7±0.6kg”solarInputW: “3200W Max”warrantyMonths: “5-Year Warranty”


