Head-to-head test
EcoFlow DELTA 3 vs DJI Power 1000
The DELTA 3 is $180 cheaper than the DJI Power 1000, expands, and switches over twice as fast for UPS — the DJI's reply is a bigger surge, more solar, and a marginally quieter fan.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
EcoFlow
DELTA 3
3,196Power Score · Appliance Class
$549.00 list · direct from EcoFlow
DJI
Power 1000
3,099Power Score · Appliance Class
$699.00 list · direct from DJI
Spec deltas
Two quiet, capable 1,024Wh units, but one is $180 cheaper and more flexible. The EcoFlow DELTA 3 is $519 to the DJI Power 1000's $699, and where the two 1kWh boxes differ, the DELTA 3 tends to win the practical ones: it expands, the DJI is sealed; it switches to battery in about 10ms for true line-interactive UPS, the DJI takes 20A2.
The DELTA 3 is also already quiet — its fans often stay off entirely under 200W and are barely audible at moderate loadA1 — and it's 2 pounds lighter, with a strong 3,600W surge. So the DJI's usual headline, silence, is a narrower edge here: it's quieter still at 23dB, but the DELTA 3 isn't the loud one it's fixing.
The DJI's real advantages are power and solar. It surges to 4,400W against the DELTA 3's 3,600, takes 800W of solar to 500, and carries a longer 4,000-cycle battery, on genuinely premium build praised by reviewersB1B2. For a buyer who needs the surge, charges hard from panels, or wants the quietest unit made, it earns its premium — but for most, the cheaper, expandable, faster-switching DELTA 3 is the better buy.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
The DELTA 3 saves $180, accepts an add-on battery where the DJI is fixed at 1,024Wh, and hands off to battery in about 10ms — line-interactive UPS territory that keeps a router or PC from resettingA2 — where the DJI sits a tier back at 20ms.
the DELTA 3 costs $519 vs the DJI's $699the DELTA 3 is expandable while the DJI is sealedthe DELTA 3 switches over in ~10ms vs the DJI's 20msA2
Why it mattersFor UPS duty, expandability, or just value, the DELTA 3 leads despite the DJI's polish.
rated cycles
The DJI's 4,400W surge starts the heaviest motors with room to spare, its 800W solar refills from panels far faster than the DELTA 3's 500W, and its 4,000-cycle battery outlasts the DELTA 3's 3,000 — a coherent case for off-grid or heavy-load use, if you'll pay $180 for it.
the DJI surges to 4,400W vs the DELTA 3's 3,600Wthe DJI takes 800W of solar vs the DELTA 3's 500Wthe DJI is rated 4,000 cycles vs the DELTA 3's 3,000
Why it mattersSolar-heavy or high-surge buyers are the ones who should stretch to the DJI.
The DJI's 23dB is genuinely the quietest in classB1, but the DELTA 3 is no loud rival — its fans often stay off entirely under 200W and are barely audible at moderate loadA1 — so the DJI's signature advantage shrinks to a small edge here rather than the decisive gap it holds over louder units.
the DELTA 3 is effectively silent under 200WA1the DJI Power 1000 runs a whisper-quiet 23dBB1both stay quiet at the light loads most 1kWh units run
Why it mattersIf quiet is your top priority the DJI still wins it, but the DELTA 3 gives up little for its $180 saving.
The specific dimensions that decide these two units — everything else is a tie.
What the Specs Don't Tell You
Selected because: Expansion, UPS speed, surge, and solar are where the two diverge.
rated cycles
The split is unusually balanced. The DELTA 3 wins expansion (the DJI is sealed) and UPS speed — its ~10ms cutover is a tier ahead of the DJI's 20ms for protecting sensitive gearA2. The DJI wins surge (4,400W vs 3,600), solar (800W vs 500), and cycle life (4,000 vs 3,000), and is quieter still at 23dB.
So neither list is decisively longer; they point at different buyers. The DELTA 3 is the better everyday and UPS unit; the DJI is the better off-grid and high-surge one. With both already quiet, the DJI's noise edge doesn't carry the day the way it would against a louder rival — which is why the $180 gap does so much of the deciding.
Lifetime Value
Selected because: The DELTA 3's $180 lower price against near-equal cost-to-own is the core call.
cost / lifetime kWh
The DELTA 3 wins the money. It's $180 cheaper than the DJI, and even against the DJI's longer 4,000-cycle battery their cost-to-own lands within a rounding error near $0.17 per lifetime kWh — so the DJI's extra cycles barely dent the DELTA 3's upfront saving. On value, the EcoFlow is clearly ahead.
The DJI's premium buys surge, solar, and build, not lower running cost. That's a fair trade if you'll use those, but for a buyer who won't max the surge or charge from a big array, the DELTA 3 delivers the same capacity and quiet for $180 less — the better deal for ordinary use.
Growth Path
Selected because: The DELTA 3 expands; the DJI is sealed — a clear structural edge.
solar input
The DELTA 3 expands; the DJI Power 1000 does not. Add-on batteries grow the EcoFlow past 1,024Wh, while the DJI is a sealed box at what it ships with. Near the 1kWh line, where a longer trip or outage can outrun the base capacity, that flexibility is a real, structural advantage.
It's the counterweight to the DJI's polish. The DJI is the more refined single unit; the DELTA 3 is the platform that grows with you. If you're sure 1kWh is enough for good, the DJI's sealed design costs you nothing — but if there's any chance your needs climb, only the DELTA 3 answers 'I need more' with an accessory instead of a second purchase.
Brand Trust
Selected because: DJI's newness and proprietary solar versus EcoFlow's proven, open ecosystem.
EcoFlow is the deeper, more proven ecosystem — the deepest lineup in portable power, an open solar input that works with standard panels, and an expansion path — though the standard DELTA 3 is newer, so its field data is still preliminaryA1. DJI is the newer entrant to power stations, and the Power 1000's build and quiet earn real praiseB1B2.
The DJI's practical caveats: its solar charging runs through a proprietary adapter rather than a standard input, and its fast-charge SDC ports are DJI-specific — great if you own DJI drones, an extra step if you don't. Both brands are still maturing in support here, so buy from a retailer with an easy return window and let value and features, not the badge, decide.
Strengths & trade-offs
EcoFlow DELTA 3
Strengths
- +Costs $150 less
- +Lighter by 1.7 lb
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Power 1000's 4,000, so it wears out sooner.
DJI Power 1000
Strengths
- +Higher AC output
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Sealed capacity — the DELTA 3 can add batteries to grow past 1,024Wh; this one can't.
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 covers a fridge-plus-lights blackout for a full eight hours alone — both hold 1,024Wh, short of the load. The DELTA 3's route to more is expansion; the DJI's is its higher 4,400W surge to start bigger appliances and 800W solar to refill faster mid-outage. For outage planning, the DELTA 3 grows and the DJI restarts and recharges harder — pick by whether you'd rather add capacity or recharge fast.
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 clear a CPAP's ~320Wh night several times over and both run quiet at a CPAP's low draw — the DELTA 3 effectively silent, the DJI whisper-quiet. Runtime and noise are effectively tied overnight, so let the bigger factors decide: the DELTA 3's price and UPS speed, or the DJI's solar and surge. Either is a fine bedside unit.
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
A laptop-monitor-router day near 910Wh sits at the usable edge of both 1,024Wh units — a near-tie on runtime. The tiebreak favors the DELTA 3: its faster ~10ms line-interactive cutover better protects a desktop setup through a power blip, and its lower price leaves budget for a second monitor. The DJI's 140W USB-C fast-charges a laptop directly, but for desk UPS duty the EcoFlow edges it.
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
Dead heat — both run this 205W load for roughly 4.2h. Pick on price, weight, or ports.
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 13, 2026
Verdict: the DELTA 3
The EcoFlow DELTA 3 is the better value and the smarter pick for most buyers. At $519 it undercuts the $699 DJI Power 1000 by $180, holds the same 1,024Wh, and beats it on the things that shape daily use: it expands where the DJI is sealed, switches over in about 10ms for line-interactive UPS against the DJI's 20ms, weighs 2 pounds less, and is already effectively silent at low load. The DJI answers with genuine strengths — a 4,400W surge to the DELTA 3's 3,600, 800W of solar to 500, a 4,000-cycle battery to 3,000, and an even quieter 23dB — but at a $180 premium, sealed, with slower UPS. Unless you specifically need the DJI's surge, solar, or premium build, the DELTA 3 does more of what matters for less.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 13, 2026. The links below open EcoFlow's and DJI's current prices.
$549.00 list · direct from EcoFlow
or check the Power 1000 price$699.00 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated July 13, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
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 rates 4.3/5 (61st percentile of 24 Everyday-class units), and Power 1000 rates 3.9/5 (35th 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.
The DELTA 3 grows; the DJI is sealed
The DELTA 3 accepts an add-on battery to grow past 1,024Wh, while the DJI Power 1000 is fixed at what it ships with. For a unit near the 1kWh line, where a longer trip or outage can outrun the base capacity, that flexibility is a real advantage — and it's the DELTA 3's clearest structural edge over the more polished DJI. If you might need more than a kilowatt-hour later, only the EcoFlow can get you there without a second purchase.
10ms versus 20ms — the cheaper unit switches faster
The DELTA 3 hands off to battery in about 10ms — fast enough to qualify as line-interactive UPS, keeping a desktop PC, NAS, or router alive through a cutover — while the DJI Power 1000 takes around 20ms, a tier back in standby territory. For most appliances the gap is invisible, but for sensitive gear that can trip on a longer interruption, the DELTA 3 is the safer bet, and it's the cheaper unit doing it. An unusual case where the value pick also has the better UPS.
Warranty Value Comparison
The DELTA 3 gives you 9.1 years of warranty per $1,000 spent, vs the Power 1000's 7.2 years. That's 1.3× more coverage per dollar. An underrated factor if you're keeping this unit for years.
4,000 cycles versus 3,000 — the DJI's honest edge
The DJI Power 1000's battery is rated for 4,000 charge cycles to the DELTA 3's 3,000 — a third more full charges before either fades. It's a genuine point in the DJI's favor, though its $180-higher price keeps the two units' cost-to-own within a rounding error near $0.17 per kWh. So the DJI lasts longer, but you're not saving money over the DELTA 3's life to get there — longevity to the DJI, value to the EcoFlow.
Full record above — the Test Desk pick is the DELTA 3.
Check DELTA 3 price →or check the Power 1000 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
The DELTA 3 is cheaper to buy, but the Power 1000 is cheaper to own. At $0.17/kWh over its lifetime vs $0.18/kWh, the Power 1000's higher cycle life and capacity make each dollar go further over the years.
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.
DJI
Ecosystem
New entrant (2024) — 4 power station models: Power 500, Power 1000 V2, Power 1000 Mini, Power 2000
Support
Leveraging DJI's established global support and repair center network from the drone business. Generally positive reputation inherited from drone operations, but limited power-station-specific track record.
Community
No dedicated power station community yet. Discussions happen within r/dji (~250K members, mostly drone users). Very small power-specific presence on Facebook and forums.
App experience
Rated 3.5/5 iOS and Android (DJI Home app ratings reflect entire DJI ecosystem including drones/cameras, not power-station-specific). Users report the on-device screen is more reliable than the app.
Unique strength
Runs quiet — 23-30dB published across the line, at the quiet end of the category. Fastest wall-charging speeds (~56 min for V2). 700+ battery patents from drone R&D. SDC ports for ultra-fast DJI drone charging. Premium industrial design and build quality. LFP batteries rated for 4,000+ cycles.
Worth knowing
A recent entrant to power stations, arriving long after the established players, so there is less long-term field data than for EcoFlow, Jackery or BLUETTI — though DJI brings a deep hardware track record from drones. No built-in solar charge controller (requires a separate proprietary adapter). SDC ports are proprietary to the DJI ecosystem, so their fast-charging advantage mostly benefits people who already own DJI gear. Battery expansion is available on the newer Power 2000 and Power 1000 V2, but not on the earlier Power 1000 or Power 500 — check the specific model.
Analyst note
EcoFlow is the deeper, more proven ecosystem — the deepest lineup in portable power, an open solar input that works with standard panels, and an expansion path — while DJI is the newer entrant whose Power 1000 impresses on quiet and build but carries a proprietary solar adapter and DJI-specific SDC ports that suit existing DJI owners best. The standard DELTA 3 is itself newer, so its long-term record is thinner than EcoFlow's flagships. Both brands are still maturing on power-station support, so buy from a retailer with an easy return window and let the DELTA 3's value-and-flexibility or the DJI's surge-and-quiet, not the badge, make the call.
Growth path
DELTA 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,024Wh.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
Power 1000
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 800W of solar. Suitable for a 1-2 panel setup.
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 Power 1000 is sealed at 1,024Wh, which is fine if that covers you. The DELTA 3 starts at 1,024Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Power 1000 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 3
Field data on the standard DELTA 3 is preliminary — most testing covers its Plus and Max siblingsA1 — but the early read is encouraging: at low loads the fans often stay off entirely, making it effectively silent, and only barely audible at moderate loadA1. Its UPS switchover, shared with its siblings, lands around 10ms, fast enough that routers don't reset and CPAPs don't interrupt therapyA2.
Add expandability, a 3,600W surge, and a $180-lower price, and it's the value-and-flexibility pick here — a quiet, capable unit whose main asterisk is simply that its long-term record isn't written yet.
“At low loads (under 200W) the fans often stay completely off, making the Delta 3 effectively silent; under moderate load (500–800W) the fans are barely audible from three feet away.”
Sources
portablepowernerd.com · thesolarlab.com · outputreport.com
DJI Power 1000
The DJI Power 1000's calling card is quiet: reviewers call it whisper-quiet, one of the quietest in its class, with sound only noticeable past 1,500W and even then a soft whoosh rather than a whineB1. It handled a 2,400W test load for 20 minutes without loud noise or shutdownsB2, and charges fully in about 70 minutes with the fan nearly silentB3.
Over a week of camping it ran a compressor fridge, phones, laptops, and lights, and it's a favorite of drone pilots for fast-charging DJI batteriesB4. As a newer entrant its track record is shorter, but the build and quiet are consistently praised — the premium unit, at a premium price.
“Whisper-quiet operation — one of the quietest power stations in its class, nearly silent under normal loads; sound only becomes noticeable past 1,500W, and even then it's a soft whoosh rather than the high-pitched whirring you'd get from BLUETTI or EcoFlow.”
Sources
thesolarlab.com · trailandkale.com · offgridbenchmark.com · superfashion.us · dronexl.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
- Standout quiet operation (quieter than EcoFlow/BLUETTI), robust real-world output above its rating, and appeal to drone pilots and campers are the consistent themes. [Power 1000 · 3 entries]
- A1
“At low loads (under 200W) the fans often stay completely off, making the Delta 3 effectively silent; under moderate load (500–800W) the fans are barely audible from three feet away.”
portablepowernerd.com — EcoFlow Delta 3 Tested: 2026 Hands-On Review; thesolarlab.com · 2026 · [positive]
- A2
“UPS switchover works as advertised — a power cut results in a ~10ms handoff, fast enough that routers don't reset, fridges don't skip a compressor cycle, and CPAP machines don't interrupt therapy.”
outputreport.com / thesolarlab.com — DELTA 3 line UPS testing (observed on DELTA 3 Plus, which shares the 10ms UPS spec) · 2026 · [positive]
- B1
“Whisper-quiet operation — one of the quietest power stations in its class, nearly silent under normal loads; sound only becomes noticeable past 1,500W, and even then it's a soft whoosh rather than the high-pitched whirring you'd get from BLUETTI or EcoFlow.”
thesolarlab.com / trailandkale.com — DJI Power 1000 review · 2026 · [positive]
- B2
“Tested at 2,400W — slightly above its 2,200W output rating — for 20 minutes and handled it without loud noise or automatic shut-offs.”
offgridbenchmark.com / superfashion.us — DJI Power 1000 review · 2026 · [positive]
- B3
“AC charging takes about 70 minutes from 0% to 100% (about 50 minutes to 80%), and during full-speed charging the fan barely makes a sound.”
thesolarlab.com — DJI Power 1000 review · 2026 · [positive]
- B4
“Over a week-long camping trip it powered a 45W compressor fridge, phones, laptops, and LED lights; it's also a favorite of drone pilots for fast-charging DJI batteries while running other devices.”
offgridbenchmark.com / dronexl.co — DJI Power 1000 review · 2026 · [positive]
Research compiled July 13, 2026.
Who Should Buy Which
Buy the DELTA 3 if you…
- →You want the better value — $519, $180 less than the DJI — on the same 1,024Wh.
- →You want an expansion path and faster line-interactive UPS (10ms vs 20ms)A2.
- →You want a quiet unit and a strong 3,600W surge without paying for the DJI's extras.
If neither fits
Both cap at 1,024Wh, so neither covers a full 8-hour blackout alone — only the DELTA 3 expands toward it. If you need whole-outage runtime in one box, step up to a 1.5-2kWh unit rather than either of these.
The Bottom Line
The DELTA 3 is the smarter buy for most people: $180 cheaper than the DJI Power 1000, expandable where the DJI is sealed, faster for UPS duty, lighter, and already quiet, with a strong 3,600W surgeA1A2. It does more of what matters day to day for less money.
The DJI Power 1000 earns its premium for a specific buyer — one who needs its bigger surge or 800W solar, wants the quietest unit made, or owns DJI drones for the fast-charge portsB1B4. If that's you, it's a genuinely excellent, if pricier, unit. For everyone else, the cheaper, more flexible DELTA 3 takes it.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow DELTA 3 vs DJI Power 1000 — which should I buy?
The DELTA 3 for most buyers: at $519 it's $180 cheaper, expands where the DJI is sealed, switches over faster for UPS (10ms vs 20ms), and is already quiet. Choose the DJI Power 1000 if you need its higher 4,400W surge, 800W solar input, or the quietest-in-class 23dB operation, and can pay $699 for the premium build — its advantages are real but come at a price.
Is the DJI Power 1000 quieter than the DELTA 3?
Yes, but only marginally. The DJI runs a whisper-quiet 23dB; the DELTA 3 is also genuinely quiet, with fans that often stay off entirely under 200W and are barely audible at moderate load. So the DJI wins the noise contest, but the DELTA 3 isn't a loud rival — the gap is small, unlike the DJI's advantage over noisier units.
Which is better for UPS or a home office?
The EcoFlow DELTA 3. It switches to battery in about 10ms — line-interactive UPS territory that keeps routers, PCs, and CPAPs running through a cutover — where the DJI Power 1000 takes 20ms, a tier back. Combined with its lower price and expandability, the DELTA 3 is the stronger pick for a desk or home-backup UPS.
Which lasts longer and charges better from solar?
The DJI Power 1000 on both. It's rated for 4,000 cycles to the DELTA 3's 3,000, and it takes 800W of solar input to the DELTA 3's 500, so it refills from a panel array noticeably faster. If longevity and solar charging are your priorities, the DJI's premium is easier to justify; otherwise the DELTA 3's value wins.
Where to buy
EcoFlow DELTA 3Pick
$549.00
$549.00 list · direct from EcoFlow
DJI Power 1000
$699.00
$699.00 list · direct from DJI
Prices may vary by retailer and are subject to change.