Product comparison · Portable Stations
BLUETTI Elite 300 vs EcoFlow DELTA 3 Ultra
The BLUETTI Elite 300 scores 7.2 and ranks 5th of 29 in Portable Stations; the EcoFlow DELTA 3 Ultra scores 6.9 and ranks 14th of 29 in Portable Stations. The Elite 300 leads on battery life, the DELTA 3 Ultra on power output.
All 11 BLUETTI products 
BLUETTI Elite 300
$1,199 · 5th of 29 in Portable Stations
Buy Now- Battery Life — 10 against 4
7.2
6.9
All 13 EcoFlow products 
EcoFlow DELTA 3 Ultra
$1,199 · 14th of 29 in Portable Stations
Buy Now- Power Output — 10 against 5
Across everything we scored, BLUETTI Elite 300 sits 0.27 ahead — led by battery life.
Verdict
Elite 300 ahead · +0.27 (7.2 vs 6.9)Pick the BLUETTI Elite 300 when
Battery life matters10vs4
Recharging matters7vs6
Pick the EcoFlow DELTA 3 Ultra when
Power output matters10vs5
Scored 9 October 2026 from published specs and owner reviews. We don't buy or test units. How we score
Most common complaints
From each product's own owner reviews and retailer ratings.
BLUETTI Elite 300
- Weight, tagged negative in 13 mentions
- Battery capacity, tagged negative in 4 mentions
- Value for money, tagged negative in 2 mentions
EcoFlow DELTA 3 Ultra
- Quality, tagged negative in 6 mentions
- Charging capacity, tagged negative in 4 mentions
- Value for money, tagged negative in 3 mentions
Where the BLUETTI Elite 300 and EcoFlow DELTA 3 Ultra differ
Scores on a 0–10 scale. Each row is one criterion, biggest difference first.
Battery Life
+6 BLUETTIRecharging
+1 BLUETTICapacity
tiedBackup Readiness
tiedVerification
tiedWarranty & Support
tiedValue
one side unscoredWhat BLUETTI Elite 300 and EcoFlow DELTA 3 Ultra owners report
Independent sources, scored for each model. Elite 300 on 5 of five, DELTA 3 Ultra on 5.
Both readings are about these exact models.
What they say
BLUETTI Elite 300
- Elite 300 owners in r/bluetti report a display that stopped showing readings while the unit kept working (October 2026), an app that would not open the unit from its device list and so blocked a firmware update (September 2026), and a 900 W Ryobi inverter generator that tripped as soon as charging began (October 2026).
- One owner ran a fridge and a chest freezer on it for nearly 18 hours (August 2026).
EcoFlow DELTA 3 Ultra
- Two owner reports in r/Ecoflow_community name the base DELTA 3 Ultra.
- One owner had two units in a row fail with error 556, the second at three weeks old, and faulted the replacement process (July 2026), while another called it "actually not bad" for fridge backup and 120 V RV use (March 2026).
Both readings are about these exact models.
What they say
BLUETTI Elite 300
- StorageReview drew 2.67 kWh at the outlets, 89 percent of rated, and measured an 8 ms switchover (August 2026).
- The Technology Man, which uses Amazon affiliate links, drew 2,819 Wh at a 1 kW load, 94 percent, and timed the switchover at 8.9 ms (March 2026).
- TheSolarLab, which earns affiliate commission and quoted a discount-code price, measured 86 percent efficiency, about 15 W of AC idle draw and a full wall charge in 2 hours 44 minutes, and faulted the tight AC outlet spacing (September 2026).
- Popular Mechanics faulted the lack of expansion and the two USB-C ports (June 2026).
EcoFlow DELTA 3 Ultra
- TheSolarLab, which earns affiliate commission and quoted a discount-code price, measured 82 percent efficiency, a full wall charge in exactly two hours and 22 W of idle draw.
- Connected by mistake to a 1,000 W array on its 800 W input, the unit neither shut down nor limited the input.
- It praised the true 30 A RV outlet and the front port layout for UPS use.
YouTube
+1 BLUETTIBoth readings are about these exact models.
What they say
BLUETTI Elite 300
- The Technology Man's March 2026 video, posted with Amazon affiliate links, drew 2,819 Wh at a 1 kW load, 94 percent, measured an 8.9 ms switchover and ran the inverter to about 2,800 W before it shut off.
- It faulted the missing expansion port and an app that buries the DC charging settings.
EcoFlow DELTA 3 Ultra
- The Solar Lab's May 2026 video, posted with affiliate links and discount codes (about 51,000 views), measured 82 percent efficiency, a two-hour wall charge, 22 W of idle draw and about four hours on 800 W of solar, and repeated its solar over-input concern.
- No other channel published a measured test of the base Ultra.
Amazon
tiedBoth readings are about these exact models.
What they say
BLUETTI Elite 300
- The US listing (B0GKRTX336), sold by BLUETTI and on pre-order for October 23, reads 4.7 from 251 ratings, 85 percent five-star and 4 percent one-star.
- Amazon's review tags are positive on portability (19 of 19 mentions), value (17 of 19) and battery capacity (17 of 21), with weight drawing 13 negative mentions of 20.
EcoFlow DELTA 3 Ultra
- The station-alone listing (B0FR8LHP3K), sold by EcoFlow, reads 4.6 from 164 ratings, 84 percent five-star and 4 percent one-star, a count that may be pooled with a sibling listing; a second listing with a solar cable reads 4.4 from 79.
- Amazon's review tags are positive on quality (19 of 25 mentions) and functionality (12 of 15), with charging capacity drawing 4 negative mentions of 7.
Owner reviews
tiedThe BLUETTI Elite 300 reading covers the whole brand; the EcoFlow DELTA 3 Ultra reading covers its product line.
What they say
BLUETTI Elite 300
- No US retailer holds ten native reviews of the Elite 300: Home Depot's file holds three reviews, Walmart's two ratings and Lowe's none, and Best Buy shows reviews coming soon.
- Walmart rates the Bluetti Official store 4.2 from 434 seller reviews.
EcoFlow DELTA 3 Ultra
- No US retailer holds ten native reviews of the DELTA 3 Ultra; Home Depot's file shared with the DELTA 3 Classic holds nine, and Walmart's solar kit six.
- Across the DELTA 3 series, Costco's DELTA 3 Plus file reads 4.45 over 44 readable native reviews, and Home Depot and Lowe's hold 24 and 15 native reviews of the DELTA 3 Classic.
BLUETTI Elite 300 vs EcoFlow DELTA 3 Ultra: pros and cons
What each one does well, and where it falls short.
BLUETTI Elite 300
What we like
- 3,014 Wh in a 58.0 lb body
- 6,000 cycles to 80 percent
- 1,200 W of solar input
- Switchover measured at 8 to 8.9 ms by two testers
- 2,819 Wh drawn by The Technology Man94 percent of rated
- UL 2743 listing by model in Intertek's ETL directory
What holds it back
- No expansion battery
- Full wall charge took 2 hours 44 minutes in TheSolarLab's test
- AC idle draw of about 15 W in TheSolarLab's test
- Ships from October 26
EcoFlow DELTA 3 Ultra
What we like
- 3,600 W continuous output
- TT-30 outlet for RVs
- Full wall charge in 120 minutes
- 10 ms UPS switchover
- UL 2743 listing by model in SGS's directory
What holds it back
- No expansion battery
- Solar input capped at 800 W
- No published cycle rating
- 72.1 lb
- Took a 1,000 W array on its 800 W input without cutting out, in TheSolarLab's test
BLUETTI Elite 300 vs EcoFlow DELTA 3 Ultra: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
- AC outputBLUETTI2,000-2,999 WEcoFlow More3,000-3,999 W
- Rated cyclesBLUETTI6,000 cycles or moreEcoFlowNot listed
- Solar inputBLUETTI More1,000-1,999 WEcoFlow600-999 W
- WeightBLUETTI58.0 lbEcoFlow72.1 lb
Same on both
- 3,000-3,999 WhCapacity
- 120 V onlyOutput voltage
- LiFePO4Battery chemistry
- 10 ms or lessBackup switchover
- Not expandableExpandable to
- UL 2743 listedSafety listings
- 5 YearsWarranty
We earn a commission if you buy through these links. It never changes a score.
Not sold on either one?
The top-scored and the cheapest other pick from each brand.
More from BLUETTI 9 scored in Portable Stations
What’s different
- Nothing we record differs.
Pick it ifCapacity matters10vs7
What’s different
- Capacity: 1,000-1,499 Wh, not 3,000-3,999 Wh
- AC output: Under 1,000 W, not 2,000-2,999 W
Pick it ifPrice matters$429vs$1,199
More from EcoFlow 9 scored in Portable Stations
What’s different
- Solar input: 1,000-1,999 W, not 600-999 W
- Expandable to: 10-19.9 kWh, not Not expandable
Pick it ifCapacity matters10vs7
What’s different
- Capacity: 700-999 Wh, not 3,000-3,999 Wh
- AC output: Under 1,000 W, not 3,000-3,999 W
Pick it ifBattery life matters6vs4
BLUETTI Elite 300 vs EcoFlow DELTA 3 Ultra: common questions
Is the BLUETTI Elite 300 better than the EcoFlow DELTA 3 Ultra?
On our scores, the BLUETTI Elite 300 is ahead, 7.2 against 6.9. The BLUETTI Elite 300 leads on battery life (10 against 4) and recharging (7 against 6). The EcoFlow DELTA 3 Ultra leads on power output (10 against 5).
Which has more AC output, the BLUETTI Elite 300 or the EcoFlow DELTA 3 Ultra?
The EcoFlow DELTA 3 Ultra: rated 3,000-3,999 W, against 2,000-2,999 W for the BLUETTI Elite 300.
What do owners say about the BLUETTI Elite 300 and the EcoFlow DELTA 3 Ultra?
Across 5 independent sources scored for both, the BLUETTI Elite 300 is ahead on Reddit, Google and YouTube; Amazon and Owner reviews are level.
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Scores calculated 9 October 2026 · Products excluded where fewer than two independent sources cover them · · How we score