Head-to-head test
EcoFlow DELTA Pro vs BLUETTI Elite 320
Pay EcoFlow's $400 premium over the Elite 320 and you get exactly 400 more Wh in return, a dollar per extra watt-hour — the money isn't really about capacity, it's paying for a 3,600W inverter, a 7,200W surge ceiling, and a real expansion path the Elite 320 doesn't have.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
EcoFlow
DELTA Pro
5,338Power Score · The AC & Fridge Zone
$1,599.00 list · direct from EcoFlow
BLUETTI
Elite 320
4,595Power Score · Appliance Class
$1,099.99 list · direct from BLUETTI
Spec deltas
Pay the DELTA Pro's $400 premium over the Elite 320 and you get almost exactly 400 more Wh in return, a dollar per extra watt-hour at the margin. Neither unit's blended cost-per-kWh is anywhere near that rate, so the extra money isn't really buying capacity.
What it's buying is inverter headroom: 3,600W continuous and a 7,200W surge against the Elite 320's 1,800W and 2,700W, plus a real expansion path through EcoFlow's ecosystem. None of the six modeled scenarios actually need that headroom — both units clear the same everyday jobs.
So this comes down to whether your real use case needs serious continuous power or room to grow. If it does, the DELTA Pro earns its premium. If it doesn't, the Elite 320 delivers equivalent real-world coverage for $400 less, about 24 fewer pounds, and a faster UPS switchover.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Both units price out to roughly $0.10 to $0.11 per lifetime kWh overall, so paying a dollar for one incremental Wh at the margin is nowhere near that blended rate — the extra 400Wh isn't really what that $400 is buying.
DELTA Pro costs $1,399 for 3,600Wh; Elite 320 costs $999 for 3,200WhThe price gap between them is $400 and the capacity gap is also 400Wh
Why it mattersBuyers should judge the DELTA Pro's price premium on its inverter and expansion ecosystem, not on its slightly bigger tank.
continuous output
A single compressor-driven appliance, a well pump, an RV air conditioner, a shop tool, that spikes 2 to 3 times its steady draw at startup has real room on the DELTA Pro's inverter that the Elite 320 simply doesn't have, independent of whichever unit has the bigger battery.
DELTA Pro outputs 3,600W continuous, exactly double the Elite 320's 1,800WDELTA Pro surges to 7,200W, nearly triple the Elite 320's 2,700W
Why it mattersBuyers running one demanding compressor load should pick on inverter headroom alone here, not price or capacity.
weight
Ninety-nine pounds and 60 decibels is the toll for that extra headroom. EcoFlow built a genuinely stronger inverter and then made sure you'd hear it working.
DELTA Pro weighs 99 lbs against the Elite 320's roughly 75DELTA Pro's fans are independently measured at 60dB under heavy load, described as a noticeable, distracting whine in a quiet room
Why it mattersFor a bedroom, CPAP, or apartment setup, the Elite 320's smaller, lighter profile is the safer default; the DELTA Pro reads more like a garage or utility-room unit.
solar input
Ten milliseconds against 20ms mostly matters for sensitive electronics that dislike even a brief power gap; 1,600W against 1,000W of solar input matters for anyone actually off-grid, since it shortens a full recharge by a real margin on a sunny day.
Elite 320 switches to battery in 10ms against the DELTA Pro's 20msDELTA Pro accepts up to 1,600W of solar input against the Elite 320's 1,000W
Why it mattersHome-lab or networking buyers should weight the Elite's UPS speed; genuinely off-grid, solar-dependent buyers should weight the DELTA Pro's faster solar ceiling.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: Every modeled scenario ties or fails for both units — a genuinely honest split worth surfacing plainly.
None of the six modeled scenarios actually separate these two. Weekend Camping, the 8-Hour Blackout, CPAP Overnight, Remote Workday, and Tailgate Party are all comfortable for both units, and Van Life Daily is out of reach for both. The DELTA Pro finishes with a little more headroom everywhere, 69% against 77% on Weekend Camping, for instance, but neither unit is ever forced into a corner the other escapes.
That's an honest tie on the metric that's supposed to matter most. If the modeled scenarios cover your actual use, the deciding factor here isn't capacity, it's the $400 price gap and what you're getting for it.
Lifetime Value
Selected because: The $400 price gap maps almost exactly onto the 400Wh capacity gap — a clean number worth calling out.
cost / lifetime kWh
Cost-per-lifetime-kWh comes out to $0.11 for the DELTA Pro and $0.10 for the Elite 320, close enough to call a wash. The bigger gap is cost-per-warranty-year: $280 for the DELTA Pro against $200 for the Elite 320, purely a function of the higher price on the same 5-year term.
So the DELTA Pro's extra capacity doesn't meaningfully change what you're paying per unit of energy over the unit's life. If ownership economics is the whole question, this one's close to a coin flip, and price decides it.
What the Specs Don't Tell You
Selected because: Surge headroom and disclosed noise are the real technical differentiators beyond price and capacity.
rated cycles
The real technical gap is in the inverter, not the battery. The DELTA Pro's 3,600W continuous output is double the Elite 320's 1,800W, and its 7,200W surge is nearly triple the Elite 320's 2,700W, real headroom for a compressor-driven appliance. The Elite 320 has no answer here.
That power comes at a cost: the DELTA Pro is independently measured at 60dB under heavy load, described as a noticeable, distracting whine in a quiet room. The Elite 320's noise level isn't published at all, so it's an unknown rather than a confirmed win, but the DELTA Pro's number is a confirmed problem for anyone using it somewhere quiet.
Growth Path
Selected because: Only the DELTA Pro expands, into the deepest ecosystem in the category.
solar input
The DELTA Pro is the only one of these two that expands, and EcoFlow's expansion ecosystem is the deepest in the category. The Elite 320 is sealed at 3,200Wh for the life of the unit.
That's a real long-term advantage if you already know you'll need more than either unit's base capacity. If you don't, it's a future purchase you're paying a premium for today, not a benefit you're using yet.
Brand Trust
Selected because: Cross-brand pair with genuinely different support and ecosystem tradeoffs worth naming.
EcoFlow runs the largest community and ecosystem in the category, with the fastest-charging technology across its lineup, though its October 2025 DELTA Max 2000 recall and a paused subscription-paywall experiment are worth knowing about. BLUETTI's app is rated as well or better, but its support is the more inconsistent of the two brands, heavily email-based with real delays reported.
Neither brand's support reputation is spotless. If a smooth warranty claim matters as much as the hardware, that's a wash worth researching case by case rather than assuming either badge guarantees better service.
Strengths & trade-offs
EcoFlow DELTA Pro
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$499) than the Elite 320.
- –Significantly heavier (+24 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Can receive complaints about fan noise under heavy load.
BLUETTI Elite 320
Strengths
- +Costs $499 less
- +Lighter by 24 lb
Trade-offs
- –Weaker inverter (-1,800W) limits appliance compatibility.
- –Sealed capacity — the DELTA Pro can add batteries to grow past 3,200Wh; 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
Either unit
Both handle this comfortably, 69% of tank for the DELTA Pro, 77% for the Elite 320. A near-tie; if this is your main use, let the $400 price gap decide instead.
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 12% 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 clears this, 153% for the DELTA Pro, 172% for the Elite 320. Both are undersized for true daily van life; look at the DELTA Pro with an expansion battery attached, or a bigger platform entirely.
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 runs 14.9h vs 13.3h.
$1,599 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 0–204hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–40.8hHigh-Draw Appliances
These reveal the real limitsscale 0–3.1h¹ 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 BLUETTI Elite 320
None of the six modeled scenarios actually separate these two — both handle everyday camping, blackout, CPAP, workday, and tailgate loads, and both fall short of Van Life Daily. The DELTA Pro's $400 premium buys almost exactly 400 more Wh, a dollar per extra watt-hour, nowhere near either unit's own $0.10-$0.11 blended cost-per-kWh, so the money is really paying for the inverter: 3,600W continuous and a 7,200W surge against the Elite 320's 1,800W and 2,700W, plus a real expansion path. That's a genuine advantage for a well pump, an RV air conditioner, or a workshop tool. Everyone else gets the same practical coverage from the Elite 320 for less money, less weight, and a twice-as-fast UPS switchover.
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.
$1,099.99 list · direct from BLUETTI
or check the DELTA Pro price$1,599.00 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): Tailgating.
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 rates 3.9/5 (33rd percentile of 16 Home Backup-class units), and Elite 320 rates 3.9/5 (38th percentile of 25 Large-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.
Weight Reality Check
Neither unit is grab-and-go. The Elite 320 (75 lbs) is manageable solo but heavier than a large checked suitcase. The DELTA Pro (99 lbs) is noticeably heavier. That's a 24 lb difference.
60 Decibels Is Not a Quiet Number
Reviewers measured the DELTA Pro's fans as a noticeable, distracting whine under loads past 2,000W. If you're running it somewhere quiet, budget for that; the Elite 320's number is unknown, not necessarily better.
The Elite 320's One Structural Gap
3,200Wh is permanent on the Elite 320. The DELTA Pro plugs into EcoFlow's expansion ecosystem, the deepest in the category — the real reason to pay more today if your needs are still growing.
Double the Continuous, Nearly Triple the Surge
The DELTA Pro's 7,200W surge sits on top of an already-larger 3,600W continuous rating, both bigger in raw terms and proportionally deeper than the Elite 320's 2,700W surge over 1,800W continuous. For a single demanding compressor load, that's an unambiguous edge.
UPS Speed: line-interactive (<10ms) vs standby (<20ms)
The Elite 320 switches to battery in 10ms (line-interactive (<10ms)), while the DELTA Pro takes 20ms (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 320 gives you 4.5 years of warranty per $1,000 spent, vs the DELTA Pro's 3.1 years. That's 1.5× more coverage per dollar. An underrated factor if you're keeping this unit for years.
Elite 320: Noise Level Not Disclosed
The DELTA Pro publishes its noise level (60dB), but the Elite 320 doesn't. Brands that don't disclose noise specs often have louder units. If noise matters to you (CPAP users, apartment dwellers), this is worth investigating before buying.
Full record above — the Test Desk pick is the Elite 320.
Check Elite 320 price →or check the DELTA Pro 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 ($0.13/kWh vs $0.11/kWh). The price difference is what you see on the sticker — neither is a hidden bargain or rip-off.
Brand trust
EcoFlow
Ecosystem
The largest ecosystem in the category, DELTA Pro, DELTA 3, and RIVER 3 lines plus solar panels and smart home panels, with the deepest expansion path of any brand here.
Support
Experiences are polarized: many report smooth, prepaid-label replacements, others describe long waits or refurbished units sent back for new claims.
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 in the category and the most active innovation cadence, though the October 2025 DELTA Max 2000 recall is worth knowing about before buying.
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 widest lineups in the category, from budget units through the Elite and Apex flagships.
Support
The most inconsistent support in the category — some buyers get quick resolutions, others describe long email delays. Buying direct tends to produce better 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
Best capacity-to-price ratio in the market, which is exactly why the Elite 320 matches the pricier DELTA Pro's scenario coverage for $400 less.
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's ecosystem and charging speed are the stronger long-term bet if you're building out a larger system; BLUETTI's value proposition wins the specific hardware-for-dollars comparison happening on this page.
Growth path
DELTA Pro
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,600Wh.
Accepts up to 1,600W 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 320
FIXED CAPACITYFixed at 3,200Wh — 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 320 is sealed at 3,200Wh, which is fine if that covers you. The DELTA Pro starts at 3,600Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Elite 320 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
Long regarded as a gold standard for home backup, reviewers say it's built for high-draw appliances and full-scale battery expansion, powering fridges, lighting, and even a space heater through outagesA1. It's served as primary backup across multiple overnight outages over months, running LFP cells rated for well over a decade of daily useA3.
It isn't silent doing that work: under loads past 2,000W the fans emit a noticeable high-pitched whine reviewers call distracting in a quiet room, though it runs quietly enough at lighter loadsA4. It's heavy but wheeled, with integrated wheels and a telescoping handle that work best on flat ground — uneven terrain calls for a cartA2.
“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
Sources
backuppowerhub.com · us.ecoflow.co · outdoorgearlab.com · bobvila.com · powerstationadvisor.com · robbsutton.com
BLUETTI Elite 320
Reviewers frame the Elite 320 around sheer standby endurance: a 3,200Wh LFP pack good for more than two days of essential household power across four AC outlets and dual USB-C portsB3, introduced at CES 2026 as a suitcase-style home-backup unitB1.
BLUETTI positions it as affordable, essential backup rather than a premium flagshipB4, a framing that lines up with this matchup specifically, where it delivers nearly identical scenario coverage to the pricier, heavier DELTA Pro for $400 less.
“A 3,200Wh LiFePO4 battery delivering 1,800W continuous (2,700W Power Lifting, 3,600W peak), with 10ms UPS protection — a suitcase-style rolling home-backup station introduced at CES 2026.”
Sources
prnewswire.com · rv.com · notebookcheck.net · ussolarsupplier.com · finance.yahoo.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
- Established home-backup platform with wheeled portability and massive expandability; the consistent knock is fan noise under heavy load. [DELTA Pro · 3 entries]
- Large 3,200Wh LFP capacity, wheeled mobility, 10ms UPS, and affordable home-backup positioning are the standout points. [Elite 320 · 3 entries]
- A1
“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
backuppowerhub.com / us.ecoflow.com — EcoFlow DELTA Pro review · 2025-2026 · [positive]
- A2
“Heavy but wheeled — integrated wheels and a telescoping handle help move its considerable weight, though they work best on flat, smooth surfaces; a cart is needed for uneven ground.”
outdoorgearlab.com / bobvila.com — DELTA Pro-line review · 2025-2026 · [mixed]
- A3
“Reliable through extended outage use — served as primary backup across multiple overnight outages over months, powering essentials simultaneously; LFP battery rated for thousands of cycles and 10+ years of daily use.”
powerstationadvisor.com / robbsutton.com — DELTA Pro-line review · 2025-2026 · [positive]
- A4
“Not silent under heavy load — under 2000W-plus draws the fans emit a noticeable high-pitched whine that's distracting in a quiet room, though it runs quietly enough at lighter loads.”
outdoorgearlab.com — DELTA Pro-line noise testing · 2025-2026 · [negative]
- B1
“A 3,200Wh LiFePO4 battery delivering 1,800W continuous (2,700W Power Lifting, 3,600W peak), with 10ms UPS protection — a suitcase-style rolling home-backup station introduced at CES 2026.”
prnewswire.com / rv.com — Elite 320 review · 2026 · [positive]
- B3
“The big 3,200Wh LFP battery lasts over a decade and provides over 66 hours of refrigeration — up to two days of essential household power — via four AC outlets, dual USB-A, and two USB-C (140W and 100W).”
rv.com / ussolarsupplier.com — Elite 320 review · 2026 · [positive]
- B4
“Positioned as affordable, essential home backup at a $1,199.99 MSRP.”
prnewswire.com / finance.yahoo.com — Elite 320 launch · 2026 · [positive]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA Pro if you…
- →You're running a genuinely high-draw single load, a well pump, an RV air conditioner, a workshop tool, where the 3,600W continuous rating and 7,200W surge headroom actually get used.
- →You want a real expansion path and expect to grow past 3,600Wh eventually.
Buy the Elite 320 if you…
- →Your real use fits the modeled scenarios, camping, blackout, CPAP, workday, tailgate — both units clear all of them, so there's no reason to pay $400 more.
- →You want the lighter unit with the faster-switching UPS for a bedroom, apartment, or anywhere weight and a quick switchover matter.
If neither fits
Van Life Daily needs roughly 4,685Wh — both fall short, the DELTA Pro at 153% of its tank and the Elite 320 at 172%. If that's your actual daily draw, look at larger expandable platforms from either brand, the DELTA Pro plus its own expansion batteries specifically.
The Bottom Line
Every modeled scenario ends in a tie or a shared failure, and the two units' cost-per-lifetime-kWh is close enough to call even. What's not close is the inverter: the DELTA Pro's 3,600W continuous and 7,200W surge are real, decisive advantages for a genuinely high-draw appliance.
Pay the $400 and carry the extra 24 lbs only if you need that headroom or EcoFlow's expansion path. Otherwise, the Elite 320 delivers the same real-world coverage for less money, less weight, and a faster switchover.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA Pro worth $400 more than the BLUETTI Elite 320?
Only if you need its inverter headroom. Both units clear the same everyday scenarios, camping, blackouts, CPAP, remote work, tailgating, and their cost-per-lifetime-kWh is nearly identical, $0.11 against $0.10. The DELTA Pro earns its price with a 3,600W continuous rating and a 7,200W surge, double and nearly triple the Elite 320's numbers, for genuinely high-draw single appliances.
Which one is quieter?
Unclear in the Elite 320's favor by default, but not proven. The DELTA Pro is independently measured at 60dB under heavy load, loud enough that reviewers call it a distracting whine in a quiet room. The Elite 320's noise level isn't published anywhere, so it's an open question, not a confirmed win.
Does the Elite 320 expand like the DELTA Pro?
No. The DELTA Pro supports EcoFlow's expansion ecosystem, the deepest in the category; the Elite 320 is a closed 3,200Wh system for life. That's the DELTA Pro's clearest long-term advantage.
Which one has the stronger inverter?
The DELTA Pro, decisively. Its 3,600W continuous output is double the Elite 320's 1,800W, and its 7,200W surge is nearly triple the Elite 320's 2,700W, real headroom for a compressor-driven appliance like a well pump or RV air conditioner.
Which one should I actually buy?
If your use case matches typical camping, blackout, or remote-work scenarios, take the Elite 320 — it covers the same ground for $400 less, weighs about 24 lbs less, and switches over twice as fast. Buy the DELTA Pro only if you specifically need its inverter headroom or its expansion path.
Where to buy
EcoFlow DELTA Pro
$1,599.00
$1,599.00 list · direct from EcoFlow
BLUETTI Elite 320Pick
$1,099.99
$1,099.99 list · direct from BLUETTI
Prices may vary by retailer and are subject to change.