Head-to-head test
EcoFlow DELTA 3 1000 Air vs BLUETTI Elite 100 V2
One runs a desk; the other runs a room — the DELTA 3 1000 Air tops out at 500W continuous, the Elite 100 V2 at 1,800W, and that ceiling settles this before capacity or price gets a word in.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk

EcoFlow
DELTA 3 1000 Air
3,014Power Score · Appliance Class
$309.00 list · direct from EcoFlow

BLUETTI
Elite 100 V2
3,334Power Score · Appliance Class
$499.00 list · direct from BLUETTI
Spec deltas
The DELTA 3 1000 Air stops at 500W of continuous output; the Elite 100 V2 delivers 1,800W. That single gap decides more than the near-identical capacities (960Wh vs 1,024Wh) or the $290 price difference, because 500W is the line below which a coffee maker, a microwave, and a hair dryer all simply refuse to start.
So these aren't two sizes of the same thing. The DELTA 3 1000 Air is a home-office backup box — 22 pounds, a 10ms UPS switchover, and just enough output to keep a computer, monitor, and router alive through an outageA2. The Elite 100 V2 is a full portable power station that happens to weigh only three pounds more, and it recharges from solar in roughly an hour on its 1,000W inputB2.
There's one honest wrinkle in the DELTA's favor: it's cheaper to buy and lands a cent or two lower on cost per lifetime kWh. But EcoFlow has discontinued itA4, its warranty runs 2 years to the Elite's 5, and its 500W ceiling is a wall, not a soft limit. Read past the matching Wh number.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
The matching capacity numbers hide the actual decision: a full battery you can only draw at 500W is a different product from one you can draw at 1,800W, no matter what the Wh sticker says. The Elite's headroom is the reason to buy it; the DELTA's ceiling is the reason most people shouldn't.
DELTA 3 1000 Air: 500W continuous output (800W X-Boost)A1Elite 100 V2: 1,800W continuous output, 2,700W surgeOwners note the DELTA won't run a space heater or hair dryer at 500WA3
Why it mattersAnyone whose backup list includes a single kitchen appliance or heating device should stop comparing capacities and buy the Elite — the DELTA can't start the load at all.
solar input
Recharge speed is the survival spec in a multi-day outage, not a convenience — the unit that refills in a morning is usable again by afternoon, while the slower one is still drinking sun when the clouds come back. The Elite's 1,000W input turns its battery over twice as fast as the DELTA's.
Elite 100 V2: 1,000W solar input, full charge in about an hourB2DELTA 3 1000 Air: 500W solar inputAn outage or off-grid day gives you a finite window of good sun
Why it mattersOff-grid and multi-day-outage buyers should weight solar input as heavily as capacity here, and it points at the Elite.
Over the term you can actually claim on, the Elite is the cheaper unit to stand behind: $120 a warranty-year against $155, with a 5-year policy against 2. The DELTA's per-kWh edge only materializes if you keep a discontinued unit running past a decadeA4.
DELTA 3 1000 Air: cheaper to own at ~$0.11 per lifetime kWh vs the Elite's ~$0.15DELTA cost per warranty-year: $155; Elite: $120DELTA warranty is 2 years; Elite is 5
Why it mattersBuyers who care about real-world cost should use the warranty-year figure, which favors the Elite — the lifetime-kWh edge is a horizon nobody lives to see.
The specific dimensions that decide these two units — everything else is a tie.
What the Specs Don't Tell You
Selected because: The 500W output ceiling and the 18W USB-C cap are the two facts that actually decide the page.
rated cycles
The surge spec quietly repeats the same story the continuous rating told: 2,700W of headroom on the Elite against 1,000W on the DELTA. Compressor loads — a fridge, a pump — spike two to three times their running draw at the instant they start, so surge headroom is what decides whether the unit shrugs off that kick or trips. The Elite has room to absorb it; the DELTA doesn't.
The USB-C gap is the other one to catch. The DELTA maxes at 18W over USB-C, which trickle-charges a phone but won't feed a modern laptop; the Elite delivers 100W, enough to run a 16-inch laptop at full tilt while it works. If your bag is a laptop and not a wall of AC plugs, that's an 82-watt difference that shows up every single day.
Your Life, Your Pick
Selected because: Shows both clearing CPAP and tailgate but neither finishing camping or a blackout — sets honest expectations for a 1kWh class.
Set expectations honestly: this is the 1kWh class, and it isn't built for a weekend. A two-night camping trip wants about 2,100Wh and an 8-hour multi-appliance blackout about 1,645Wh — both units fall short of each, so neither is your off-grid basecamp. Where they both land comfortably is the small stuff: a CPAP overnight (about 320Wh) and a tailgate afternoon (about 670Wh).
On the CPAP night, both clear it using barely a third of their tank, so let the noise and output specs break the tie — the Elite runs at 30dB in its quiet modeB1 against the DELTA's 39dB, and if you're sleeping two feet from it, that's the number that matters, not the leftover capacity you'll never touch.
Lifetime Value
Selected because: The DELTA's cheaper-per-kWh claim needs the warranty-year correction surfaced honestly.
cost / lifetime kWh
On paper the DELTA is the cheaper unit to own — about $0.11 per lifetime kWh against the Elite's $0.15. But that math runs over the full 3,000-cycle life, a horizon measured in decades, and it leans on the DELTA's low $309 sticker rather than any efficiency advantage.
The number that survives contact with reality is cost per warranty-year, and it points the other way: $120 for the Elite against $155 for the DELTA, over a 5-year policy against a 2-year one. You're covered more than twice as long for less per year. The DELTA wins the fantasy horizon; the Elite wins the one you'll actually live in.
Brand Trust
Selected because: EcoFlow's discontinuation of this model against BLUETTI's fresh 2026 release is a real ownership-risk axis.
The ownership risk here isn't hypothetical. EcoFlow has already discontinued the DELTA 3 1000 Air, steering buyers to the standard DELTA 3 insteadA4 — so you'd be buying into a line the maker has moved on from, with no parts or out-of-warranty service to fall back on. EcoFlow's ecosystem is the deepest in the category, but this specific unit is a closed chapter in it.
The Elite 100 V2 is the opposite bet: a fresh 2026 release on BLUETTI's current LFP platform, with a 5-year warranty behind it and active review coverage still landingB5. BLUETTI's support is the more inconsistent of the two on paper, so buy direct from BLUETTI to give yourself the better claim path — but you're buying a unit the brand is still actively selling and improving, not retiring.
Strengths & trade-offs
EcoFlow DELTA 3 1000 Air
Strengths
- +Costs $190 less
- +Lighter by 3 lb
Trade-offs
- –Weaker inverter (-1,300W) limits appliance compatibility.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Elite 100 V2's 4,000, so it wears out sooner.
BLUETTI Elite 100 V2
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$190) than the DELTA 3 1000 Air.
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
Neither unit
Neither unit can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.
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
Neither unit
Neither unit can fully handle this scenario (needs 1,645Wh). You'd need a higher-capacity station or to cut back on usage.
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 units clear a CPAP night on a third of their capacity, so capacity isn't the tiebreak — noise is. The Elite's 30dB Silent mode is the quieter one to sleep beside; the DELTA sits at 39dB.
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
Neither unit
Neither unit can fully handle this scenario (needs 910Wh). You'd need a higher-capacity station or to cut back on usage.
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 cover a typical tailgate afternoon with capacity to spare, but only the Elite's 1,800W output can run a blender or griddle without stalling. Same job on capacity, different ceiling on what you can actually plug in.
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: Elite 100 V2 runs 4.2h vs 4h.
$499 list · direct from BLUETTI
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 0–58hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–11.6hHigh-Draw Appliances
These reveal the real limitsscale 0–0.9h¹ 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 16, 2026
Verdict: the Elite 100 V2, on Power Score margin
The Elite 100 V2 does everything the DELTA 3 1000 Air does and a whole category more. Their capacities are nearly identical (1,024Wh against 960Wh), but the Elite pushes 1,800W continuous against the DELTA's 500W — the difference between a unit that runs a coffee maker, microwave, or hair dryer and one that flatly won'tA3. It also charges from solar in about an hour on 1,000W of inputB2, carries a 5-year warranty against 2, and runs quieter. The DELTA answers with a lower sticker ($309 vs $599) and a hair-lower cost per lifetime kWh, but it's a discontinued unitA4 built for one narrow job — sitting under a desk as a 10ms UPSA2. If that's genuinely all you need, it's the cheaper way to get it. For anyone who wants a 1kWh unit to actually behave like one, the Elite wins going away.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 16, 2026. The links below open EcoFlow's and BLUETTI's current prices.
$499.00 list · direct from BLUETTI
or check the DELTA 3 1000 Air price$309.00 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated July 16, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living, Home Backup, Food Truck.
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 3 1000 Air rates 5.0/5 (99th percentile of 19 Compact-class units), and Elite 100 V2 rates 4.8/5 (87th percentile of 24 Everyday-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.
18W vs 100W Over USB-C
The DELTA 3 1000 Air caps USB-C at 18W — a phone trickle, not a laptop feed. The Elite 100 V2 delivers 100W, enough to run a 16-inch laptop at full power while it works. If your daily load is a laptop rather than wall plugs, this gap shows up every day.
Surge Headroom for Motor Loads
The Elite's 2,700W surge against the DELTA's 1,000W is the buffer that absorbs a fridge or pump's startup spike, which briefly pulls two to three times its running draw. More surge headroom is a cleaner inverter and fewer trips under compressor loads.
Two Years vs Five
The DELTA carries a 2-year warranty, the Elite a 5-year. On cost per warranty-year that's $155 against $120 — the Elite is both longer-covered and cheaper per year of that coverage, despite the higher sticker.
3,000 vs 4,000 Cycles
The Elite is rated for 4,000 cycles to the DELTA's 3,000 — over a decade of regular use either way. The gap is real but sits far past when most owners retire a unit for other reasons, so weight it only if you'll cycle daily.
Full record above — the Test Desk pick is the Elite 100 V2.
Check Elite 100 V2 price →or check the DELTA 3 1000 Air 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 ($0.11/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
EcoFlow runs the deepest ecosystem in portable power, but this model is a retired branch of it rather than a current one.
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
EcoFlow has discontinued the DELTA 3 1000 Air and steers buyers to the standard DELTA 3, so there's no out-of-warranty service path for this exact unit.
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
BLUETTI's support is the more inconsistent of the two on paper — buy direct from BLUETTI for the better claim path.
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
The Elite 100 V2 is a fresh 2026 release on BLUETTI's current LFP platform, still actively sold and reviewed.
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
One brand has moved on from the unit in this matchup; the other just launched it. That trajectory difference is worth as much as any single spec when you're buying something you want to still service in three years.
Growth path
DELTA 3 1000 Air
FIXED CAPACITYFixed at 960Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Adequate ports for most setups, but heavy users may want a power strip.
Elite 100 V2
FIXED CAPACITYFixed at 1,024Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
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
Neither expands, and that's no knock on either — each is a complete unit at a fixed size. Buy the capacity that covers your needs now (the Elite 100 V2 gives you the larger ceiling); you can't add to either later.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 1000 Air
The DELTA 3 1000 Air reads, in every hands-on account, as a deliberately narrow tool: a 960Wh LFP unit with a 500W inverter, few ports, and a light 22-pound body — minimalism as the whole pointA1. Reviewers are blunt about the ceiling that comes with it: at 500W continuous it won't run a space heater or a hair dryer, and it's built strictly for low-to-moderate drawA3.
Where it earns its keep is as a power-protection device — a 10ms UPS switchover that keeps a computer, monitor, and router running straight through an outage without a blinkA2. Worth knowing before you commit: EcoFlow no longer sells it, pointing buyers to the standard DELTA 3 insteadA4, so field support will only thin from here.
“A 960Wh LiFePO4 unit with a 500W inverter (800W X-Boost) weighing only 22 lbs — a focused, minimalist design with fewer ports and features.”
Sources
thesolarlab.com · batteryskills.com · backuppowerhub.com · matanich.com
BLUETTI Elite 100 V2
The Elite 100 V2's standout in the field is how fast it drinks sun — reviewers clock a full charge in about an hour on its 1,000W solar input, among the quickest in the 1kWh classB2. After a month of testing, one review called it the best portability-to-power ratio in that class, comfortably delivering its rated 1,800W and charging quicklyB5.
The honest asterisks: its sub-30dB quiet-running only holds in Silent mode, which throttles charge and discharge power, and Turbo mode is noticeably louderB1. A minority of owner reports also flag charging faults and the display occasionally reading zero chargeB4 — a small but real signal to keep the return window in mind on a unit this new.
“Reviewers found it remarkably quiet in practice — some never heard the cooling fans even while it powered a large heater. The sub-30 dB claim only applies in Silent mode, which caps charge/discharge power; Turbo mode is noticeably louder.”
Sources
thesolarlab.com · trustedreviews.com · notebookcheck.net · outdoortechlab.com · backuppowerhub.com · popsci.com · voltagebasics.com
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- A focused home-office UPS unit — LFP, 10ms UPS, quiet and light — but low 500W output; now discontinued in favor of the DELTA 3. [DELTA 3 1000 Air · 3 entries]
- Fast solar charging, quiet real-world operation, and best-in-class portability-to-power are the standout praise; occasional charging-failure reports are the main negative. [Elite 100 V2 · 3 entries]
- A1
“A 960Wh LiFePO4 unit with a 500W inverter (800W X-Boost) weighing only 22 lbs — a focused, minimalist design with fewer ports and features.”
thesolarlab.com / batteryskills.com — DELTA 3 1000 Air review · 2026 · [mixed]
- A2
“Built as a power-protection device with a 10ms UPS switchover to keep a computer, monitor, and router running through outages.”
backuppowerhub.com — DELTA 3 1000 Air review · 2026 · [positive]
- A3
“With only 500W continuous output, it won't run a space heater or hair dryer — it's built for low-to-moderate draw devices.”
backuppowerhub.com / matanich.com — DELTA 3 1000 Air review · 2026 · [mixed]
- A4
“EcoFlow no longer sells the DELTA 3 1000 Air; the closest successor is the standard DELTA 3 (1,024Wh LFP, 1,800W output, ~$549).”
backuppowerhub.com — DELTA 3 line · 2026 · [mixed]
- B1
“Reviewers found it remarkably quiet in practice — some never heard the cooling fans even while it powered a large heater. The sub-30 dB claim only applies in Silent mode, which caps charge/discharge power; Turbo mode is noticeably louder.”
thesolarlab.com / trustedreviews.com — BLUETTI Elite 100 V2 review · 2026 · [positive]
- B2
“One of the faster solar chargers in the 1kWh class — 1,000W solar input with built-in MPPT enabling a full charge in about an hour, faster than most equivalent-size units.”
notebookcheck.net / outdoortechlab.com — Elite 100 V2 review · 2026 · [positive]
- B4
“Some customer reports mention charging failures and the display occasionally showing zero charge.”
voltagebasics.com / BLUETTI community — Elite 100 V2 owner reports · 2026 · [negative]
- B5
“After 30 days of testing, it delivers the best portability-to-power ratio in the 1000Wh class — comfortably provides its rated 1,800W output and charges quickly, with strong solar specs.”
outdoortechlab.com / popsci.com — Elite 100 V2 review · 2026 · [positive]
Research compiled July 16, 2026.
Who Should Buy Which
Buy the DELTA 3 1000 Air if you…
- →You want a dead-simple desk UPS and nothing more — a computer, a monitor, and a router kept alive through outages, for the lowest priceA2.
- →Your loads genuinely never exceed 500W and the $290 you save matters more than warranty length or resale support.
If neither fits
If your real target is a two-night camping trip (about 2,100Wh) or an 8-hour whole-room blackout (about 1,645Wh), both of these come up short — this is the 1kWh class, and neither finishes those jobs. Step up to a 2kWh-plus unit like BLUETTI's own AC200L rather than choosing between these two.
The Bottom Line
Buy the Elite 100 V2. The two share a tank size, but the Elite draws it at 1,800W to the DELTA's 500W — the line between a unit that runs a kitchen appliance and one that keeps a router alive — and it refills from solar in about an hour, runs quieter, and carries more than double the warrantyB2.
The DELTA 3 1000 Air keeps one honest job: the cheapest way to put a 10ms UPS under a deskA2. If that is precisely and only what you need, and its discontinuation doesn't spook youA4, it saves you $290. For everyone else, the extra output is the whole reason to own a power station, and only one of these has it.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Why is the Elite 100 V2 twice the price for the same capacity?
The capacities are close (1,024Wh vs 960Wh), but you're paying for output, not storage. The Elite pushes 1,800W continuous against the DELTA's 500W, charges from solar in about an hour on 1,000W of input, carries a 5-year warranty against 2, and delivers 100W over USB-C against 18W. The tank is similar; everything around it is a class up.
Can the DELTA 3 1000 Air run kitchen appliances?
No. At 500W continuous it sits below a standard microwave, coffee maker, hair dryer, or space heater, all of which need more wattage to even start. It's built for low-draw electronics — a computer, monitor, router, phones, and lights. If your list includes any heating or motor appliance, the Elite's 1,800W is the one that works.
Is the DELTA 3 1000 Air discontinued?
Yes. EcoFlow no longer sells it and points buyers to the standard DELTA 3 (1,024Wh, 1,800W) instead. It can still be a fine cheap desk UPS if you find one, but there's no out-of-warranty service, so factor that into a purchase today.
Which is quieter for running a CPAP overnight?
The Elite, in practice. Both clear a CPAP night easily on capacity — it draws only about a third of either tank — but the Elite runs at 30dB in Silent mode against the DELTA's 39dB rating. Two feet from your head at 3 a.m., that difference is the whole point.
Isn't the DELTA cheaper to own over its life?
Marginally, on paper — about $0.11 per lifetime kWh against $0.15 — but that amortizes over decades of cycling nobody reaches. On cost per warranty-year, the term you can actually claim on, the Elite is cheaper at $120 against $155, with more than double the coverage. The lifetime edge is real but unreachable.
Where to buy

EcoFlow DELTA 3 1000 Air
$309.00
$309.00 list · direct from EcoFlow

BLUETTI Elite 100 V2Pick
$499.00
$499.00 list · direct from BLUETTI
Prices may vary by retailer and are subject to change.