BLUETTI Elite 400 vs EcoFlow DELTA Pro 3

EcoFlow DELTA Pro 3 portable power station

Pick this if

BLUETTI Elite 400

Weight: 86.0 lb vs 113.5 lb
List price: $1,299 vs $2,799
Cost per watt-hour: $0.34 vs $0.68
Watt-hours per pound: 44.7 Wh/lb vs 36.1 Wh/lb

Buyers who measure value in watts and watt-hours, not in grams and app screens.

Pick this if

EcoFlow DELTA Pro 3

Capacity: 4,096 Wh vs 3,840 Wh
Continuous AC output: 4,000 W vs 2,600 W
UPS switchover: 10 ms vs 15 ms

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 400	DELTA Pro 3	What it means
Capacity	3,840 Wh	4,096 Wh	How much energy the unit stores. Sets how long everything else can run.
Continuous AC output	2,600 W	4,000 W	The largest load the inverter will run continuously, not counting surge.
Weight lower is better	86.0 lb	113.5 lb	The spec buyers most often regret ignoring.
List price lower is better	$1,299	$2,799	Vendor list price at the time of collection; street prices move.
Cost per watt-hour lower is better	$0.34	$0.68	Price divided by capacity. The fairest single value metric.
Watt-hours per pound	44.7 Wh/lb	36.1 Wh/lb	Capacity you get per pound carried.
Max solar input	—	2,600 W	Caps how large an array is useful, and therefore off-grid recharge speed.
Rated cycles	—	4,000 cycles	Vendor claim for charge cycles before capacity degrades to 80%.
UPS switchover lower is better	15 ms	10 ms	How long the unit takes to switch to battery. Under 20 ms keeps a desktop alive.
Max expandable capacity	—	48,000 Wh	How far the system can grow with add-on batteries.
Warranty	60 months	60 months	Stated warranty length from the vendor listing.

How each one ranks overall

BLUETTI Elite 400

#5 of 73 for Best value (Wh per dollar) ($0.34)
#15 of 74 for Most portable (Wh per pound) (44.7 Wh/lb)
#72 of 75 for Most inverter headroom (68 W/100Wh)
#40 of 72 for Most output per dollar (2.00 W/$)
#4 of 75 for Best for home backup (78/100)
#27 of 75 for Longest warranty (60 mo)

EcoFlow DELTA Pro 3

#40 of 73 for Best value (Wh per dollar) ($0.68)
#40 of 74 for Most portable (Wh per pound) (36.1 Wh/lb)
#62 of 75 for Most inverter headroom (98 W/100Wh)
#7 of 55 for Highest solar input (2.6 kW)
#3 of 24 for Most expandable (48 kWh)
#3 of 65 for Longest service life (16384 kWh)
#51 of 72 for Most output per dollar (1.43 W/$)
#2 of 75 for Best for home backup (85/100)
#22 of 75 for Longest warranty (60 mo)
#16 of 27 for Quietest under load (30 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-400-portable-power-station.

Vendor wording for each figure (5)

capacityWh: “3,840Wh”
acOutputW: “2,600 W rated / 3,900 W Lifting Power”
weight: “85.98 lbs / 39 kg”
upsSwitchoverMs: “15 ms UPS keeps your devices running without a blink”
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/delta-pro-3-portable-power-station.

Vendor wording for each figure (8)