Head-to-head test
EcoFlow DELTA Pro 3 vs BLUETTI Elite 400
1,400 extra continuous watts and a 48kWh expansion ceiling are what the DELTA Pro 3's extra $1,500 buys — not a cheaper watt-hour, which stays with the Elite 400 at $0.15 against $0.20.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
EcoFlow
DELTA Pro 3
5,693Power Score · The AC & Fridge Zone
$2,399.00 list · direct from EcoFlow
BLUETTI
Elite 400
5,086Power Score · The AC & Fridge Zone
$1,399.00 list · direct from BLUETTI
Spec deltas
The DELTA Pro 3 holds 4,096Wh and costs $3,199. The Elite 400 holds 3,840Wh — 256Wh less — and costs $1,699, $1,500 cheaper.
Almost none of that gap is stored energy. It's delivery: 4,000W continuous output against the Elite 400's 2,600W, 2,000W of solar input against 1,000W, and an expansion path to 48kWh where the Elite 400 is fixed for good.
The lifetime math doesn't favor the bigger unit, though. The Elite 400 comes out to $0.15 per lifetime kWh against the DELTA Pro 3's $0.20 — the premium buys output headroom, not a cheaper way to store power.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
The DELTA Pro 3's 4,000W continuous output against the Elite 400's 2,600W is where that money actually goes — 1,400W of extra delivery rate, not storage.
DELTA Pro 3 costs $3,199 for 4,096Wh; Elite 400 costs $1,699 for 3,840Wh — 256Wh more for $1,500 moreComputed lifetime cost is $0.20 per kWh for the DELTA Pro 3 against $0.15 for the Elite 400
Why it mattersA buyer who only needs to store energy, not push more of it out at once, should ignore the capacity numbers here and buy on the Elite 400's cheaper cost per kWh instead.
That headroom costs $300 more per warranty year ($640 against the Elite 400's $340) before a single expansion battery gets added — the premium is baked in whether or not the slots ever get used.
DELTA Pro 3 expands to 48kWh via EcoFlow's modular batteriesA1Elite 400 is a closed system, fixed at 3,840Wh
Why it mattersOnly buy toward the DELTA Pro 3's expansion path with an actual whole-home or long-outage plan in mind; otherwise the premium is prepaid capacity that never gets touched.
weight
That charging edge comes from accepting far more total input power, including 2,000W of solar against the Elite 400's 1,000W — the Elite 400 tops out lower on both fronts.
DELTA Pro 3 weighs 112.4 lbs against the Elite 400's 85 lbs — a 27.4-lb gapDELTA Pro 3 reaches 0-80% charge in about 50 minutes using up to 7,000W of inputA3
Why it mattersBuyers who need to top off fast between uses — event work, frequent short outages — get real value from the DELTA Pro 3's higher input ceiling; buyers charging overnight from a wall outlet won't notice the difference.
continuous output
Fridge and AC compressors surge two to three times their rated draw at startup — a 2,600W continuous unit can stall trying to run several such appliances at once, where a 4,000W unit has room to spare.
DELTA Pro 3 continuous output is 4,000W with 6,000W of X-Boost surgeElite 400 continuous output is 2,600W with 3,900W of surge
Why it mattersAnyone running multiple large appliances simultaneously — a well pump, a fridge, power tools — should treat the DELTA Pro 3's output ceiling as the deciding factor, not the sticker price.
The specific dimensions that decide these two units — everything else is a tie.
PowerScore Breakdown
Selected because: The 1,400W continuous-output gap is the real reason to pay more, and belongs up front.
overall power score
This matchup isn't really about which unit holds more power — 256Wh apart is close enough to call a tie. It's about which one can push more of it out at once: 4,000W continuous against 2,600W, with 2,100W more surge headroom riding on top.
That gap matters most at startup, when a fridge or AC compressor briefly draws two to three times its rated wattage. The DELTA Pro 3 has the headroom to absorb that; the Elite 400, running several such loads together, doesn't.
Lifetime Value
Selected because: cheaperToOwn favors the Elite 400 and must be surfaced plainly even though the DELTA Pro 3 wins the verdict.
cost / lifetime kWh
The honest number here doesn't favor our pick: the Elite 400 is cheaper to own, $0.15 per lifetime kWh against the DELTA Pro 3's $0.20. Almost all of the DELTA Pro 3's extra $1,500 goes toward delivery rate and expansion, not a better watt-hour.
That's not a reason to skip it if you need the output — it's a reason to skip it if you don't. Buyers whose loads fit comfortably under 2,600W are paying for headroom they'll never draw on.
Growth Path
Selected because: 48kWh expansion is the DELTA Pro 3's structural card and needs honest treatment against its cost.
solar input
The DELTA Pro 3's expansion path to 48kWh via EcoFlow's modular batteries is the one thing on this page the Elite 400 genuinely cannot do — it's a closed system, fixed at 3,840Wh for its entire service life.
That flexibility isn't free even before it's used: the DELTA Pro 3 already runs $300 more per warranty year than the Elite 400 with zero expansion batteries attached. Buy toward it only with an actual plan to need more.
Portability & Form Factor
Selected because: 27.4 lbs is a real difference for anyone moving the unit themselves.
weight
112.4 lbs against 85 lbs is a real gap for anyone lifting this unit themselves, roughly the weight of a large travel crate riding on top of the Elite 400's own weight.
It's not dead weight, though — the DELTA Pro 3's IP65-rated battery and higher input ceiling come packaged with the extra bulk, so the tradeoff buys real capability, not just size.
Strengths & trade-offs
EcoFlow DELTA Pro 3
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$1,000) than the Elite 400.
- –Significantly heavier (+27.4 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
BLUETTI Elite 400
Strengths
- +Costs $1,000 less
- +Lighter by 27.4 lb
Trade-offs
- –Weaker inverter (-1,400W) limits appliance compatibility.
- –Very heavy unit that may be difficult for one person to lift.
- –Sealed capacity — the DELTA Pro 3 can add batteries to grow past 3,840Wh; this one can't.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the DELTA Pro 3's 4,000, so it wears out sooner.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Either unit
Both handle two nights comfortably. The Elite 400 uses 64% and the DELTA Pro 3 uses 60%. With this little difference, pick based on weight and portability instead. The lighter unit wins for car camping.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Either unit
Both survive the blackout with similar margin. Since the capacity difference doesn't matter here, focus on which unit has UPS mode — seamless switchover protects your router and PC from the split-second power gap.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Either unit
Both are wildly overqualified for CPAP. You're using 10% or less. Save your money and buy whichever is cheaper; the extra capacity is completely wasted on a 40W overnight load. Put the savings toward a second battery for multi-night trips.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Either unit
Both power your workstation all day without breaking a sweat. At these utilization levels, prioritize the unit with better USB-C output for direct laptop charging. It's more convenient than using the AC inverter and wastes less energy.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
Either unit
Both handle game day easily. Since capacity isn't the deciding factor, consider weight: the lighter unit is easier to load into a truck bed. Also check if either has Bluetooth speaker-level noise. Fan sound matters in social settings.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither unit can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ LOAD
None of the six scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: DELTA Pro 3 runs 17h vs 15.9h.
$2,399 list · direct from EcoFlow
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–232.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–46.4hHigh-Draw Appliances
These reveal the real limitsscale 0–3.5h¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.
Conclusion
July 14, 2026
Verdict: the DELTA Pro 3, on Power Score margin
Take the DELTA Pro 3 if you need more than 2,600W of continuous output or plan to grow toward whole-home backup — its 4,000W continuous rating and expansion path to 48kWh are structural advantages the Elite 400 can't match at any price. But be honest about the tradeoff: the Elite 400 is cheaper to own per kWh delivered ($0.15 against $0.20), $1,500 cheaper upfront, and 27.4 lbs lighter. If your loads top out under 2,600W and you have no expansion plans, the Elite 400 is the better buy outright, and the DELTA Pro 3's extra output goes unused.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 14, 2026. The links below open EcoFlow's and BLUETTI's current prices.
$2,399.00 list · direct from EcoFlow
or check the Elite 400 price$1,399.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 14, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, DELTA Pro 3 rates 4.1/5 (47th percentile of 16 Home Backup-class units), and Elite 400 rates 3.6/5 (20th percentile of 16 Home Backup-class units).
How the class ranking is computed →Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
27.4 Pounds for the Extra Output
The DELTA Pro 3's 112.4 lbs against the Elite 400's 85 is the honest cost of its higher continuous output and expansion capability. If you're lifting this yourself regularly, that gap is real.
48kWh Ceiling, Elite 400 Has None
The DELTA Pro 3 can grow to 48kWh through EcoFlow's modular batteries. The Elite 400 ships at 3,840Wh and stays there for its entire service life — a genuine structural gap in the DELTA Pro 3's favor.
UPS Speed: line-interactive (<10ms) vs standby (<20ms)
The DELTA Pro 3 switches to battery in 10ms (line-interactive (<10ms)), while the Elite 400 takes 15ms (standby (<20ms)). Safe for desktop PCs, routers, and CPAP machines. NAS drives are protected. This matters if you're using it as a home UPS for always-on equipment.
Warranty Value Comparison
The Elite 400 gives you 3.6 years of warranty per $1,000 spent, vs the DELTA Pro 3's 2.1 years. That's 1.7× more coverage per dollar. An underrated factor if you're keeping this unit for years.
4,000 Cycles Against 3,000
The DELTA Pro 3 is rated for 4,000 cycles to 80% capacity against the Elite 400's 3,000 — roughly a third more rated service life, though it doesn't close the cost-per-kWh gap in the Elite 400's favor.
Full record above — the Test Desk pick is the DELTA Pro 3.
Check DELTA Pro 3 price →or check the Elite 400 priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
Both units have similar long-term ownership costs ($0.15/kWh vs $0.12/kWh). The price difference is what you see on the sticker — neither is a hidden bargain or rip-off.
Brand trust
EcoFlow
Ecosystem
Largest in portable power — 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels
Support
US-based phone/email/chat support (1-800-368-8604). Experiences are polarized — many report hassle-free prepaid-label replacements, but others report long waits and refurbished units sent for new claims. Pro tip: buying from Costco or Amazon gives you a stronger return safety net.
Community
Largest community in the space — Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)
Unique strength
Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.
Worth knowing
The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.
BLUETTI
Ecosystem
One of the broadest lineups — 15-20+ models from budget (AC2A) to flagship (Apex 300, 3072Wh). Includes specialized products: vehicle solar hubs, sodium-ion cold-weather units, and balcony storage systems.
Support
The most inconsistent support in the space. Heavily email-based with China timezone delays. Some users get smooth, efficient service; others report weeks of troubleshooting runarounds, being offered discounts on new units instead of repairs, and confusing third-party purchase claim processes. Buying direct from Bluetti's website tends to produce better support outcomes.
Community
Active and growing — Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.
App experience
Rated 4.5/5 iOS and Android — tied for best app experience in the category. V3.0 UI redesign was well-received.
Unique strength
Among the best capacity-to-price ratios available — several Elite and Apex units are the lowest $/Wh in the catalog. Widest product diversity including industry-firsts like sodium-ion cold-weather units and dual solar+alternator vehicle hubs. Full LFP standardization across lineup (3,500-6,000+ cycles). Dual-voltage (120V/240V) in flagships.
Worth knowing
Customer support inconsistency is the #1 risk factor. Older/discontinued units may become unrepairable — no spare parts policy for some models. Some reports of erratic communication from support agents.
Analyst note
EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while BLUETTI competes on value. The question is whether the EcoFlow ecosystem and support premium is worth it for your use case.
Growth path
DELTA Pro 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 4,096Wh.
Accepts up to 2,000W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
Elite 400
FIXED CAPACITYFixed at 3,840Wh — a sealed, complete system. No expansion port, but that capacity already covers heavy and multi-day loads.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
The Elite 400 is sealed at 3,840Wh, which is fine if that covers you. The DELTA Pro 3 starts at 4,096Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Elite 400 doesn't have if your needs climb toward partial-home backup.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA Pro 3
The DELTA Pro 3 packs a 4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V support, expandable to 48kWhA1. Reviewers call it a gold-standard whole-home backup unit for 2026, even at roughly 113.5 lbsA4.
Its charging is the other headline: EcoFlow's multi-charge tech reaches 0-80% in about 50 minutes on up to 7,000W of input, with a full charge in roughly 90 minutes, and up to 2,600W of that can come from solarA3. It's rated for 4,000-plus cycles to 80% capacity — over 10 years of typical use — with an IP65 battery ratingA2.
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
Sources
ecoflow.com · amazon.com · homedepot.com · thepowerpick.com · outboundpower.com · techradar.com · thesolarlab.com
BLUETTI Elite 400
Next to the DELTA Pro 3's bigger output numbers, the Elite 400's real compromises stand out more: only two AC sockets and no battery expansionB4, on a unit that tops out at 2,600W continuous against the DELTA Pro 3's 4,000W.
What it still delivers: 3,840Wh of LiFePO4, 70-minute fast charging, a 15ms UPS switchover, and a trolley-equipped build reviewers rank among the most complete at its own capacity tierB1B2 — at roughly 86 lbs, lighter than the DELTA Pro 3 it's compared against hereB3.
“BLUETTI's largest Elite-range unit — a 3,840Wh LiFePO4 battery with 2,600W continuous output (3,900W Power Lifting), fixed at native capacity with no expansion.”
Sources
techradar.com · amazon.com · backuppowerhub.com · cleantechnica.com · notebookcheck.net · thesolarlab.com · edinburghnews.scotsman.co
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Huge 4,096Wh LFP capacity, 4,000W dual-voltage output, very fast charging, and big expandability are the standout praise; it's heavy at ~113 lbs. [DELTA Pro 3 · 2 entries]
- Large 3,840Wh LFP capacity, fast charging, 15ms UPS, and a trolley are the praise; only two AC sockets, no expansion, and heavy weight are the caveats. [Elite 400 · 2 entries]
- A1
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
ecoflow.com / amazon.com — DELTA Pro 3 · 2026 · [positive]
- A2
“LiFePO4 rated for 4,000+ cycles to 80% (10+ years), with an IP65 battery rating.”
homedepot.com / thepowerpick.com — DELTA Pro 3 review · 2026 · [positive]
- A3
“Multi-charge technology reaches 0-80% in about 50 minutes using up to 7,000W input, with a full charge in roughly 90 minutes; up to 2,600W solar.”
outboundpower.com / techradar.com — DELTA Pro 3 review · 2026 · [positive]
- A4
“Weighs about 113.5 lbs; reviewers call it a gold-standard whole-home backup unit for 2026.”
techradar.com / thesolarlab.com — DELTA Pro 3 review · 2026 · [positive]
- B1
“BLUETTI's largest Elite-range unit — a 3,840Wh LiFePO4 battery with 2,600W continuous output (3,900W Power Lifting), fixed at native capacity with no expansion.”
techradar.com / amazon.com — Elite 400 review · 2026 · [mixed]
- B2
“Combines 3,840Wh LFP capacity, 3,900W surge, 70-minute fast charging, 15ms UPS protection, and a built-in trolley system — one of the most complete units at the 3,000Wh+ tier in 2026.”
backuppowerhub.com / cleantechnica.com — Elite 400 review · 2026 · [positive]
- B3
“A hefty ~86 lbs (39 kg), though reviewers note it's lighter than some competitors, with wheels and a trolley for mobility.”
notebookcheck.net / thesolarlab.com — Elite 400 review · 2026 · [mixed]
- B4
“Powerful, but reviewers flag only two AC sockets and no battery expansion as compromises — good but not quite as good as it could have been.”
techradar.com / edinburghnews.scotsman.com — Elite 400 review · 2026 · [mixed]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA Pro 3 if you…
- →You're running or might run multiple large appliances at once — a well pump, a fridge, power tools — and need more than 2,600W of continuous output.
- →You have an actual plan toward whole-home backup and want the 48kWh expansion ceiling rather than buying a second full unit later.
Buy the Elite 400 if you…
- →Your loads fit comfortably under 2,600W continuous and you want the cheaper cost per lifetime kWh with no expansion plans.
- →You want the lighter unit to move yourself and don't need dual-voltage 240V output.
If neither fits
If your real need is daily van-life power, around 4,685Wh a day, skip both — the DELTA Pro 3 needs 135% of its capacity and the Elite 400 needs 144%. Neither is sized for full daily-cycle use; look at a larger-capacity station built for that job.
The Bottom Line
This isn't a case where the bigger number wins by default. The DELTA Pro 3 and Elite 400 hold nearly the same energy — 256Wh apart — and the Elite 400 is the cheaper one to own per kWh delivered.
The DELTA Pro 3 earns its $1,500 premium only through delivery: 1,400W more continuous output, a real 48kWh expansion path, and a faster charging ceiling. Buy it for those reasons specifically, or buy the Elite 400 and keep the difference.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA Pro 3 worth $1,500 more than the Elite 400?
Only if you need more than 2,600W of continuous output or plan to expand toward whole-home backup. On stored capacity alone the two are close — 256Wh apart — and the Elite 400 is actually cheaper per lifetime kWh, $0.15 against $0.20.
Which one can run bigger appliances?
The DELTA Pro 3, with real margin — 4,000W continuous against the Elite 400's 2,600W, and 6,000W of surge against 3,900W. That headroom matters most when a fridge or AC compressor briefly draws two to three times its rated wattage at startup.
Can either unit expand later?
Only the DELTA Pro 3, up to 48kWh through EcoFlow's modular batteries. The Elite 400 is a closed system at 3,840Wh for its entire life. The DELTA Pro 3's expansion path already costs $300 more per warranty year even before adding a module.
Which is cheaper to own over time?
The Elite 400, at $0.15 per lifetime kWh against the DELTA Pro 3's $0.20. The DELTA Pro 3's extra cost goes toward output headroom and expansion capacity, not a cheaper watt-hour.
How much heavier is the DELTA Pro 3?
27.4 lbs — 112.4 lbs against the Elite 400's 85. It comes with a higher input ceiling and an IP65-rated battery, so the extra weight buys real capability, not just bulk.
Where to buy
EcoFlow DELTA Pro 3Pick
$2,399.00
$2,399.00 list · direct from EcoFlow
BLUETTI Elite 400
$1,399.00
$1,399.00 list · direct from BLUETTI
Prices may vary by retailer and are subject to change.