Head-to-head test
EcoFlow DELTA 3 Max Plus vs BLUETTI Elite 320
At the identical $999 price, the Elite 320's bigger tank finishes the exact camping trip the Max Plus's smaller one can't — and that's before you've spent a cent on the Max Plus's expansion batteries.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk

EcoFlow
DELTA 3 Max Plus
4,312Power Score · Appliance Class
$1,099.00 list · direct from EcoFlow

BLUETTI
Elite 320
4,595Power Score · Appliance Class
$1,099.99 list · direct from BLUETTI
Spec deltas
Both of these cost exactly $999, which makes this one of the cleanest matchups on the site: same spend, different bets. The Elite 320 bets on raw capacity at 3,200Wh; the DELTA 3 Max Plus bets on continuous power at 3,000W against a smaller 2,048Wh tank.
That bet shows up immediately in Weekend Camping, a scenario needing roughly 2,100Wh. The Elite covers it using 77% of its usable capacity. The Max Plus can't finish it at all — it needs 121% of what it actually has. Same story on the 8-Hour Blackout, a Remote Workday, and a Tailgate Party: the Elite wins all four outright.
The Max Plus isn't outclassed everywhere. Its 3,000W continuous rating is 67% higher than the Elite's 1,800W, it's 24.3 lbs lighter, it discloses a 30dB noise rating the Elite doesn't, and it can expand past 2,048Wh with add-on batteries the sealed Elite can't match. That last one costs extra, though — for the same $999 today, the Elite's capacity is already bigger, no second purchase required.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
Capacity doesn't matter if the continuous wattage can't carry the tool in the first place: a table saw or large air compressor pulling near 1,800W steady can push the Elite to its ceiling while the Max Plus still has headroom.
DELTA 3 Max Plus: 3,000W continuous, 6,000W surge, $999Elite 320: 1,800W continuous, 2,700W surge, $999
Why it mattersWorkshop or power-tool buyers should check continuous wattage against their single heaviest device before defaulting to the bigger-capacity Elite.
Capacity
For a multi-day scenario, capacity headroom decides the outcome, not the flashier continuous-watt spec — the Elite's 1,152Wh edge over the Max Plus is the difference between finishing a trip and needing a mid-trip recharge.
Weekend Camping needs about 2,100Wh: Max Plus covers 121% of its usable capacity (can't finish it), Elite covers 77%DELTA 3 Max Plus: 2,048Wh rated capacity; Elite 320: 3,200Wh rated capacity
Why it mattersCampers and multi-day trip buyers should pick on capacity headroom first; the Max Plus's power-tool advantage doesn't help you if the trip itself outlasts the battery.
At the moment of purchase, for identical spend, the Elite already delivers more usable capacity than the Max Plus's base unit. The Max Plus's real advantage only shows up after you've spent more money.
DELTA 3 Max Plus scales from 2kWh to 10kWh via Smart Extra BatteriesElite 320 is sealed at 3,200Wh with no expansion path
Why it mattersBuyers deciding purely on day-one budget should weigh that the Elite's capacity edge today is real and free; the Max Plus's edge tomorrow has a price tag attached.
weight
For anyone moving this in and out of a trunk or up a flight of stairs repeatedly — not just setting it up once — that weight gap is the more decisive spec day to day than either unit's capacity number.
DELTA 3 Max Plus: 50.7 lbsElite 320: about 75 lbs
Why it mattersBuyers who relocate the unit often, rather than parking it in one spot, should weight portability over the Elite's capacity edge.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: The Elite wins four of six modeled scenarios outright, including a Weekend Camping trip the Max Plus can't finish on its own capacity.
The Elite wins Weekend Camping, the 8-Hour Blackout, a Remote Workday, and a Tailgate Party outright, and the first of those isn't close — the Max Plus needs 121% of its usable capacity to cover a weekend trip, meaning it simply can't finish it on one charge. CPAP Overnight is the one genuine tie, with both units using well under a fifth of their tank.
Van Life Daily beats both by a wide margin, so full-time daily power isn't the job for either at this capacity class — that calls for the Max Plus's expansion batteries or a bigger unit outright. Everywhere these two are tested against a real trip, the Elite's larger tank is the deciding factor.
Lifetime Value
Selected because: Identical price and warranty term make this a clean $0.10 vs $0.12 per-kWh comparison, driven entirely by capacity.
cost / lifetime kWh
At identical price and an identical five-year warranty, the lifetime math reduces to pure capacity: $0.10 per kWh for the Elite against $0.12 for the Max Plus. Cost per warranty year comes out the same for both at $999 apiece over five years — the gap only shows up once you divide by actual energy delivered.
The Max Plus's higher cycle count, 4,000 against the Elite's 3,000, softens that gap for daily users but doesn't erase it. Capacity is doing the heavy lifting on this page, not cycle life.
What the Specs Don't Tell You
Selected because: Surge ratio, weight, cycle life, and noise disclosure are where the two units genuinely trade off.
rated cycles
Surge ratio favors the Max Plus — its 6,000W surge is double its 3,000W rated output, against the Elite's 2,700W surge at 1.5 times its 1,800W rating. That's a better inverter margin for compressor startups, even though the Elite's raw surge number is lower to begin with. Cycle life also favors the Max Plus, 4,000 against 3,000, and it discloses 30dB noise where the Elite's spec sheet is blank.
Weight is the Elite's clearest gotcha: about 75 lbs against the Max Plus's 50.7, a real two-hands lift versus a one-person carry. Split the difference and neither unit is a clean sweep on the spec-sheet extras — the Elite wins on the numbers that decide real trips, the Max Plus wins on the numbers that decide day-to-day handling.
Growth Path
Selected because: The Max Plus's expansion path is real but not free — worth weighing against the Elite's larger day-one capacity.
The DELTA 3 Max Plus can scale from 2kWh up to 10kWh with Smart Extra Batteries — a real structural advantage the sealed Elite 320 can't offer at any price. The Elite tops out at 3,200Wh permanently.
That advantage isn't free, though. It requires buying additional battery packs beyond the $999 both units cost today, while the Elite's larger day-one capacity comes at no extra charge. Buyers planning to grow into a bigger system over time should credit the Max Plus's flexibility; buyers deciding on today's budget should credit the Elite's bigger starting tank.
Strengths & trade-offs
EcoFlow DELTA 3 Max Plus
Strengths
- +Costs $1 less
- +Lighter by 24.3 lb
- +Higher AC output
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –No major technical downsides compared to rival.
BLUETTI Elite 320
Strengths
- +Larger battery capacity
Trade-offs
- –Significantly heavier (+24.3 lbs), making it harder to move.
- –Weaker inverter (-1,200W) limits appliance compatibility.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the DELTA 3 Max Plus'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
Elite 320
The DELTA 3 Max Plus runs out of juice. It only has 1,741Wh usable, but this scenario needs 2,100Wh. The Elite 320 covers it and still has 41h of phone charging left over.
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
Elite 320
Both survive, but the Elite 320 finishes at just 60% used. That's enough reserve for a second blackout night. The DELTA 3 Max Plus at 94% leaves little margin if the outage runs longer than expected. In storm-prone areas, that remaining capacity is insurance.
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 18% 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
Elite 320
The Elite 320 gives you a comfortable buffer at 33%. Enough to work late, join extra video calls, or charge a second device without worry. The DELTA 3 Max Plus at 52% works but leaves less room for the unexpected. For daily remote work, that peace of mind matters.
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
Elite 320
Both handle game day, and the Elite 320 does it with more in reserve — 25% used against 38%. Tailgating is a light load, so that headroom counts for less here than the 24 lbs you'll actually carry across the parking lot.
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 320 runs 13.3h vs 8.5h.
$1,099.99 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 0–181.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–36.3hHigh-Draw Appliances
These reveal the real limitsscale 0–2.7h¹ 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
Both units cost exactly $999, and from there the Elite 320 wins outright: it covers Weekend Camping, an 8-Hour Blackout, a Remote Workday, and a Tailgate Party, while the Max Plus fails to finish Weekend Camping on its own capacity, needing 121% of what it actually has. Lifetime cost per kWh favors the Elite too, $0.10 against $0.12, purely because 3,200Wh beats 2,048Wh at the same spend. The Max Plus answers with a real 3,000W continuous rating against the Elite's 1,800W — genuinely useful for a single big-draw tool — plus a real expansion path up to 10kWh, disclosed 30dB quiet operation, and a 24.3-lb weight advantage. But the expansion path costs extra beyond the $999, and today, for identical money, the Elite already carries more usable capacity in the box. Take the Elite 320 unless your single heaviest device needs more than 1,800W continuous or you're planning to expand past 2,048Wh from day one.
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 3 Max Plus price$1,099.00 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): CPAP, Apartment Balcony.
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 Max Plus rates 4.3/5 (58th percentile of 25 Large-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.
Elite 320: 75 lbs Is a Commitment
At 75 lbs, this is manageable but not fun to carry. That's heavier than a large checked suitcase. Moving it from your car to a campsite requires some effort and flat terrain.
A Real Path, With a Price Tag
The Max Plus can scale to 10kWh with add-on batteries the sealed Elite can't match at any price. Just remember that flexibility costs more than the $999 both units share today — the Elite's bigger day-one tank is free by comparison.
Better Surge Margin, Smaller Tank
The Max Plus's surge rating is double its own continuous output; the Elite's is 1.5 times its own. A better inverter margin for compressor startups, on the unit with less usable capacity behind it.
4,000 vs 3,000 Cycles
The Max Plus's higher cycle count softens its lifetime-cost disadvantage for daily users, but it doesn't close the capacity gap that decides most of the real-world scenarios on this page.
One Discloses, One Doesn't
The Max Plus publishes a 30dB rating; the Elite's spec sheet has no noise figure at all. Worth knowing before a bedroom or CPAP-adjacent purchase.
Full record above — the Test Desk pick is the Elite 320.
Check Elite 320 price →or check the DELTA 3 Max Plus 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 Max Plus is cheaper to buy, but the Elite 320 is cheaper to own. At $0.11/kWh over its lifetime vs $0.13/kWh, the Elite 320's higher cycle life and capacity make each dollar go further over the years.
Brand trust
EcoFlow
Ecosystem
EcoFlow runs the largest ecosystem in portable power, spanning the DELTA Pro, DELTA 3, and RIVER 3 lines plus solar panels and smart home panels.
Support
US-based phone, email, and chat support, though experiences are polarized between hassle-free prepaid-label replacements and long waits for others. Buying from Costco or Amazon adds 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's October 2025 DELTA Max 2000 recall over overheating risk is worth knowing, even though it doesn't involve this model.
BLUETTI
Ecosystem
BLUETTI runs one of the broadest lineups in the category, from budget models to flagship units, plus specialized products like sodium-ion cold-weather units.
Support
Support is the most inconsistent in the space, heavily email-based with China timezone delays. Buying direct from BLUETTI's own site tends to produce smoother outcomes than third-party channels.
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
BLUETTI's app is tied for the best in the category, following a well-received redesign.
Analyst note
EcoFlow's ecosystem and app are the deepest of any brand here, but its recall history is a real data point against it. BLUETTI's value positioning and app quality are strong; its support consistency is the bigger open question of the two.
Growth path
DELTA 3 Max Plus
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 2,048Wh.
Accepts up to 1,000W 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 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
Don't read the DELTA 3 Max Plus's expandability as a straight win here: it starts at 2,048Wh, below the Elite 320's 3,200Wh, so a first expansion battery largely buys back capacity the Elite 320 already includes. It only pulls ahead if you'd grow past 3,200Wh — short of that, the Elite 320's larger fixed capacity is the simpler value.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 Max Plus
Reviewers describe the DELTA 3 Max Plus as a genuine power upgrade over the standard DELTA 3 Max, bumping continuous output to 3,000W with a 6,000W surgeA1. Charging is fast — about 50 minutes to 80% and roughly 70 minutes to fullA3.
Noise draws consistent praise: the unit stays quiet under typical loads, with fans spinning up only briefly at shutdown, and even at full charging power one reviewer's decibel meter barely registered above room noise at one meterA2. Its expansion path scales from 2kWh to 10kWh through Smart Extra Batteries across five charging methods, described as polished and effortless to useA4.
“Bumps output to 3,000W continuous with a 6,000W surge — a significant upgrade over the DELTA 3 Max's 2,400W and 4,800W surge.”
Sources
storagereview.com · androidguys.com · t3.com · trustedreviews.com
BLUETTI Elite 320
The Elite 320 pairs its 3,200Wh LiFePO4 battery with 1,800W continuous output — 2,700W on Power Lifting, 3,600W peak — and a 10ms UPS switchover, launched at CES 2026 as a suitcase-style home-backup unitB1. It ships on oversized shock-absorbing wheels with a telescoping handleB2.
Reviewers cite well over a day of refrigerator runtime and up to two days of essential household power on a single charge, spread across four AC outlets, dual USB-A, and two USB-C ports rated 140W and 100WB3. As a recent launch, it doesn't yet have the multi-month ownership record building up around the DELTA 3 Max line.
“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
- The Max Plus delivers more output and surge than the Max, plus a larger expansion ceiling, while staying quiet and fast-charging — a polished, higher-power take on the same platform. [DELTA 3 Max Plus · 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
“Bumps output to 3,000W continuous with a 6,000W surge — a significant upgrade over the DELTA 3 Max's 2,400W and 4,800W surge.”
storagereview.com / androidguys.com — DELTA 3 Max Plus review · 2026 · [positive]
- A2
“Stays genuinely quiet under typical loads, only spinning up its fans briefly during shutdown; even charging at full power the decibel meter barely registered above room noise at one meter.”
t3.com / trustedreviews.com — DELTA 3 Max Plus review · 2026 · [positive]
- A3
“Fast charging — reached 80% in about 50 minutes and full in around 70 minutes.”
t3.com — DELTA 3 Max Plus review · 2026 · [positive]
- A4
“Scalable — supports expandable capacity from 2kWh up to 10kWh via Smart Extra Batteries, with 5 charging methods; reviewers describe it as polished and effortless.”
storagereview.com / t3.com — DELTA 3 Max Plus review · 2026 · [positive]
- 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]
- B2
“Weighs about 75 lbs with oversized shock-absorbing wheels and a retractable telescoping handle for easy transport around the home.”
rv.com / notebookcheck.net — 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]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA 3 Max Plus if you…
- →Your single heaviest device draws close to or above 1,800W continuous — the Max Plus's 3,000W rating carries loads the Elite's ceiling can't.
- →You'd rather move a 50.7-lb unit than a 75-lb one, or you want a disclosed 30dB noise rating instead of an unpublished spec.
- →You're planning to grow past 2,048Wh over time and want a genuine expansion path, even knowing it costs more than the base $999.
Buy the Elite 320 if you…
- →You want the bigger tank for the same $999 — 3,200Wh against 2,048Wh, with no second purchase required.
- →Your trips look like the Weekend Camping scenario, which the Max Plus can't actually finish on its own capacity.
- →You want the better lifetime cost per kWh, $0.10 against $0.12, without paying more upfront.
If neither fits
If your real need is full-time daily power, Van Life Daily needs 4,685Wh — both units fall well short of that on a single charge. Look at the Max Plus with multiple expansion batteries attached, or a larger-capacity unit outright.
The Bottom Line
Same $999, different bets — and the Elite 320's bet on raw capacity pays off across the scenarios that matter: it wins four of six outright, including a weekend trip the Max Plus can't finish on its own tank.
The Max Plus isn't a bad bet, just a narrower one. Its 3,000W continuous rating, lighter chassis, and expansion path are real advantages for the specific buyer who needs them. Everyone else gets more usable capacity from the Elite for the exact same money, no second purchase required.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow DELTA 3 Max Plus or BLUETTI Elite 320 — which is the better deal at $999?
The Elite 320, for most buyers. Same price, but it carries 3,200Wh against the Max Plus's 2,048Wh, wins four of six modeled scenarios outright, and comes out cheaper per lifetime kWh at $0.10 against $0.12. The Max Plus's edges — higher continuous wattage, lighter weight, expansion — are real, just narrower in scope.
Can the DELTA 3 Max Plus handle a weekend camping trip?
Not on its own capacity. A Weekend Camping load of roughly 2,100Wh needs 121% of the Max Plus's usable energy, meaning it can't finish the trip on one charge. The Elite 320 covers the same trip using about 77% of its tank.
Which one can expand its capacity?
The DELTA 3 Max Plus, from 2kWh up to 10kWh using EcoFlow's Smart Extra Batteries. The Elite 320 is sealed at 3,200Wh with no expansion path. The Max Plus's flexibility comes at extra cost beyond its $999 base price, though.
Which one is quieter?
The DELTA 3 Max Plus discloses 30dB and reviewers describe it as quiet under typical loads with fans that only spin up briefly at shutdown. The Elite 320's spec sheet publishes no noise figure at all, a real information gap rather than evidence either way.
Which one should I actually buy?
Take the Elite 320 unless your single heaviest device needs more than 1,800W continuous, or you specifically want the Max Plus's lighter weight and future expansion path. At identical price, the Elite's bigger day-one capacity wins the real-world scenarios this site models.
Where to buy

EcoFlow DELTA 3 Max Plus
$1,099.00
$1,099.00 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.