Head-to-head test
EcoFlow DELTA 3800 Gen4 vs BLUETTI Apex 200The Smaller Box Grows Further. So What's the DELTA 4 For?
Both of these add batteries, and the Apex 200 adds more of them, takes more sun and costs less per kilowatt-hour. I'd buy the Apex 200 and put the difference toward its first battery, unless an EcoFlow extra battery is already waiting in your garage.
Full profiles: EcoFlow DELTA 3800 Gen4 β Β· BLUETTI Apex 200 β
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunnerβs take
Whole-Home Backup Tester
Both of these take extra batteries, and the smaller one takes more.
The DELTA 4 (3800) holds 3,763 Wh and accepts up to two extra batteriesA6. The Apex 200 holds 2,560 Wh and accepts up to sixB9. The smaller box has the taller ceiling.
The money runs the same direction.
At $2,199 against $1,099, every watt-hour in the EcoFlow costs more. Both carry a 6,000-cycle rating, so the lifetime gap comes straight from the price.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
For a cabin or a camper, 12 kWh by EcoFlow's figureA6 is plenty and the ceiling never bites. For a whole house it can. A backup plan that might grow past two extra batteries has to start on the Apex 200, because the EcoFlow's adapter takes two and stops thereA6.
DELTA 4 (3800): up to two extra batteries, EcoFlow quotes 4 to 12 kWhA6Apex 200: up to six B300K or B500K batteries, 33.28 kWh with six B500KsB9Two or three Apex 200 systems link through BLUETTI's Hub A1, up to 99.84 kWhB9
Why it mattersIf you can picture wanting a third battery, start with the Apex 200.
A bigger bank needs a bigger array to refill it, and a bigger array usually sits further from the box. High voltage is how the power gets there: panels wired in series, end to end so their voltages add, carry the same watts at less current, so a long run loses lessB16. The EcoFlow's 60 V ceiling keeps each string of panels short.
DELTA 4 (3800): two solar inputs, 1,000 W each at 11 to 60 VA5Apex 200: 2,000 W high-voltage input at 60 to 280 V plus 1,000 W low-voltageB5Apex 200 takes up to six expansion batteriesB9
Why it mattersIf your panels will live on a roof or out in the yard, wire them to the Apex 200.
If a DELTA Pro 3 battery is sitting in your garage, the DELTA 4 (3800) turns it into the second half of a system on day one. Nobody can yet say what an Apex 200 starts, because BLUETTI hasn't published a surge ratingB13, and a fridge or well pump starting up is exactly where that number counts.
DELTA 4 (3800) takes the DELTA Pro 3 or DELTA 3 Max Plus extra batteryA6EcoFlow sells it with a DELTA 3 Max Plus extra battery, 6 kWh in allA10DELTA 4 (3800): 7,200 W surgeA2; Apex 200: surge not publishedB13
Why it mattersOwn an EcoFlow extra battery, or need a motor to start on a published rating? Buy the DELTA 4 (3800).
The specific dimensions that decide these two units β everything else is a tie.
Growth Path
Selected because: Both add batteries. The Apex 200 starts 1,203 Wh smaller and takes more of them.
solar input
The ceiling is where these two split. EcoFlow's adapter takes two extra batteries, and EcoFlow quotes 4 to 12 kWh in allA6. BLUETTI takes the Apex 200 to 33.28 kWh with six B500Ks and links two or three units through its Hub A1B9. That's a whole-house plan, and the EcoFlow can't follow it there.
The EcoFlow's path runs through batteries you might already own. It takes the DELTA Pro 3 extra battery or the DELTA 3 Max Plus oneA6. If one of those is in the garage, that settles it. If not, I'd start on the Apex 200, put the difference toward its first battery, and get a bonus: with a battery attached its inverter steps up from 3,200 W to 3,600 WB2.
Lifetime Value
Selected because: The same 6,000-cycle rating, so the cost of each lifetime kWh follows the price.
cost / lifetime kWh
Over a whole life, the Apex 200 is the cheaper box to run. Both are rated for 6,000 cycles, so the difference comes from the price alone: $0.10 a kWh for the DELTA 4 (3800) against $0.07 for the Apex 200. At a cycle a day, either one lasts 16.4 years.
That only counts if you cycle it. A backup that sits full waiting for storms won't come close to either rating, and then this figure stops mattering. Run one off solar every day, or shift a time-of-use bill with it, and the cheaper kWh adds up every month.
Your Life, Your Pick
Selected because: The DELTA 4 (3800) wins the out-of-the-box rows on capacity. The Apex 200 still finishes the blackout.
Out of the box, the DELTA 4 (3800) has the deeper tank. Our 8-hour blackout leaves it 1,554 Wh, 94% of a second night, against 531 Wh for the Apex 200. On our camping weekend the Apex 200 finishes with 76 Wh, too close for comfort.
These rows measure the box as it ships. Add one B500K and the Apex 200 reaches 7.68 kWh by BLUETTI's figureB9. Add a DELTA 3 Max Plus battery and the DELTA 4 (3800) reaches 6 kWh by EcoFlow'sA10. Both outgrow this table with one purchase.
What the Specs Don't Tell You
Selected because: BLUETTI hasn't published a surge, noise or warranty figure, and the EcoFlow is 8 lb heavier.
My pick is the one with the blanks. BLUETTI hasn't published the Apex 200's surge, noise level or warranty lengthB13. Surge is the burst an inverter allows while a motor starts, and a well pump lives or dies on it. Get the warranty terms in writing before you bolt it beside a panel.
The EcoFlow is heavier and quicker to switch. At 67.5 lb against 59.5 lb, it's the one you'll feel on stairs. Its switchover is rated no worse than 10 ms against 15 ms, and the Apex 200 ships with UPS mode off until you turn it on in the appB10.
In the makersβ pictures
What youβd actually be living with
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3800 Gen4
Front panel
- 1USB-C Β· 140 WOutUp to 140 W (USB-PD up to 28 V at 5 A). The port for a laptop.
- 22Γ USB-C Β· 65 WOutUp to 65 W each. EcoFlow says these two and the USB-A share 16 W when two or more are in use at once.
- 3USB-A Β· 36 WOutUp to 36 W (5, 9 or 12 V at 3 A).
- 430 A twist-lockOutA three-slot twist-lock marked 30A MAX, rated 30 A at 120 V on the US unit.
- 54Γ 20 A outletsOutFour T-slot 120 V outlets rated 20 A each, sharing 3,600 W continuous and a 7,200 W surge.
Photo: EcoFlow Β· Product image, EcoFlow Japan store Β· numbers and labels are ours. Ratings from EcoFlowβs US spec table; outlet shapes read by us from EcoFlowβs picture, taken of the Japanese unit, which shares the US panel.
Input side
- 12Γ Solar/DC in Β· 1,000 WInTwo inputs, each 11 to 60 V, up to 20 A, 1,000 W: 2,000 W of panels in all.
- 2AC in Β· 1,800 WIn100β120 V at 15 A. Charges at up to 1,800 W, which at 120 V is the whole of an ordinary 15 A circuit.
- 3Battery portIn Β· OutTakes up to two of EcoFlowβs DELTA 3 Max Plus or DELTA Pro 3 extra batteries; EcoFlow quotes 4β12 kWh.
Photo: EcoFlow Β· Product image, EcoFlow Japan store Β· numbers and labels are ours. Ratings from EcoFlowβs US spec table and the panelβs own printing.
Strengths & trade-offs
EcoFlow DELTA 3800 Gen4
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
Trade-offs
- βSubstantially more expensive (+$1,100) than the Apex 200.
BLUETTI Apex 200
Strengths
- +Costs $1,100 less
- +Lighter by 8 lb
- +Faster solar charging
Trade-offs
- βNo major technical downsides compared to rival.
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 Β· 2 nights Β· needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
DELTA 3800 Gen4
The DELTA 4 (3800) finishes the 2,100 Wh weekend with 1,099 Wh left. The Apex 200 finishes too, with 76 Wh, which leaves nothing for a cold night.
Battery budget usedlower = more headroom
LOADΒ Β Phone Charger 15WΓ6h Β· LED Lights 40WΓ8h Β· Box Fan 75WΓ14h Β· CPAP Machine 40WΓ16h
SCN-02 Β· 8 hours Β· needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
DELTA 3800 Gen4
Both get through the night. The DELTA 4 (3800) ends it with 1,554 Wh, nearly a second night, against 531 Wh.
Battery budget usedlower = more headroom
LOADΒ Β Fridge 150WΓ8h Β· Router + Modem 20WΓ8h Β· LED Lights (4 bulbs) 40WΓ6h Β· Phone Charger 15WΓ3h
SCN-03 Β· 8 hours Β· needs 320Wh
CPAP Overnight
Sleep therapy without interruption β the #1 medical use case
Either unit
A CPAP is about 40W for eight hours, so both of these cover the night several times over β capacity isn't the question here. What would separate them is fan noise, but Apex 200 doesn't publish a figure, so there's nothing to hold it to. Buy on price, weight, and whether you can live with a fan you haven't heard.
Battery budget usedlower = more headroom
LOADΒ Β CPAP Machine 40WΓ8h
SCN-04 Β· 8 hours Β· needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
DELTA 3800 Gen4
Both carry the 910 Wh workday easily. The DELTA 4 (3800) uses 28% of its battery against 42%, so the evening's charging is on it.
Battery budget usedlower = more headroom
LOADΒ Β Laptop 60WΓ8h Β· External Monitor 30WΓ8h Β· Router + Modem 20WΓ8h Β· Phone Charger 15WΓ2h
SCN-05 Β· 4 hours Β· needs 670Wh
Tailgate Party
Game day power for the crew
DELTA 3800 Gen4
Both handle game day; the DELTA 3800 Gen4 keeps more in reserve (21% used vs 31%). Tailgating is a light load, though, so the number you'll feel is weight: 59.5 lbs for the Apex 200 against 67.5 lbs for the DELTA 3800 Gen4, from the trunk to the setup spot.
Battery budget usedlower = more headroom
LOADΒ Β Blender 400WΓ0.5h Β· LED TV (55") 80WΓ4h Β· Bluetooth Speaker 15WΓ4h Β· Phone Charger (Γ3) 45WΓ2h
SCN-06 Β· 24 hours Β· needs 4,685Wh
Van Life Daily
A full day of mobile living β the ultimate endurance test
Neither unit
Neither covers 4,685 Wh as it ships. This is a day for an extra battery, and both accept one.
Battery budget usedlower = more headroom
LOADΒ Β Mini-Fridge 150WΓ24h Β· Laptop 60WΓ4h Β· Phone Charger 15WΓ3h Β· LED Lights 40WΓ5h Β· Fan 75WΓ8h
The Load Test
RUNTIME = (Wh Γ 0.85) Γ· LOAD
None of the 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 3800 Gen4 runs 15.6h vs 10.6h.
$2,199 list Β· direct from EcoFlow
Planning for more than this? Describe your whole setup and get it sizedΒ β
Modeled from the spec record β same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.ΒΉ
Essentials
The basics you need runningscale 0β213.2hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β42.6hHigh-Draw Appliances
These reveal the real limitsscale 0β3.2hΒΉ Runtime = (capacity Γ 0.85) Γ· 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 β see methodology.
Conclusion
November 4, 2026
Verdict: the BLUETTI Apex 200
I'd buy the Apex 200 and spend the difference on growing it. The DELTA 4 (3800) starts bigger, 3,763 Wh against 2,560 Wh, but at $2,199 against $1,099 it costs more per watt-hour and more per lifetime kWh, $0.10 against $0.07, on the same 6,000-cycle rating. The Apex 200 also takes 3,000 W of solar against 2,000 W, and BLUETTI takes it as far as 33.28 kWhB9 where EcoFlow quotes 4 to 12 kWh for the DELTA 4 (3800)A6. The call flips if you already own a DELTA Pro 3 or DELTA 3 Max Plus extra battery, or need a published surge and warranty today: BLUETTI lists neither yetB13.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of November 4, 2026. The links below open EcoFlow's and BLUETTI's current prices.
$1,099.00 Β· direct from BLUETTI
or check the DELTA 3800 Gen4 price$2,199.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester Β· Station Arena Test Desk Β· Updated November 4, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Full specifications
α΅ Derived: price Γ· rated capacity. See the data behind our comparisons β
Comparison ToolAdd more power stations, side by sideOpen Tool βHow these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it β no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews β see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity Γ 0.85 inverter efficiency) Γ· 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 βClass ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews β 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 5β . Here, DELTA 3800 Gen4 rates 4.1/5 (48th percentile of 22 Home Backup-class units), and Apex 200 rates 5.0/5 (99th percentile of 29 Large-class units).
How the class ranking is computed βTest Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
8 lb Heavier, 1,203 Wh Bigger
The DELTA 4 (3800) is 67.5 lb and the Apex 200 is 59.5 lb, and the EcoFlow carries 1,203 Wh more for it. On a garage floor the difference never matters. On a flight of stairs, the Apex 200 is the easier lift.
Rated 10 ms Against 15 ms
Both list a UPS mode. The DELTA 4 (3800) is rated to switch over in no worse than 10 ms, the Apex 200 in no worse than 15 ms, and the Apex 200 keeps UPS mode off until you turn it on in its app. For a desktop PC with unsaved work, I'd plug into the tighter rating.
One Ceiling, One Blank
EcoFlow publishes 40 dB as a ceiling the DELTA 4 (3800) stays under at ordinary loads, not a best-case floor. BLUETTI publishes no noise figure for the Apex 200, so there's nothing to compare it with until someone stands next to one.
Full record above β the Test Desk pick is the Apex 200.
Check Apex 200 price βor check the DELTA 3800 Gen4 priceOwnership Analysis
What happens after you buy β 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
β warranty ends Β· Reaching the cycle rating means ~80% capacity remains β degraded, not dead.
Analyst note
The Apex 200 wins on both sticker price and long-term value. At $0.07/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner. One thing to know reading the table: both carry the same 6,000-cycle rating, so the lifetime rows are sticker price and capacity in disguise β the wear horizon is identical and decides nothing here.
Brand trust
EcoFlow
Ecosystem
Largest in portable power β 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 β 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 β Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) Β· 4.2/5 Android (~17,000 ratings)
Unique strength
Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further β flagship paths, not line-wide features.
Worth knowing
Tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.
BLUETTI
Ecosystem
One of the broadest lineups β 15-20+ models from budget (AC2A) to flagship portable (Apex 300, 2764.8Wh). Includes specialized products: vehicle solar hubs, sodium-ion cold-weather units, and balcony storage systems.
Support
The most inconsistent support in the space. Heavily email-based with China timezone delays. Some users get smooth, efficient service; others report weeks of troubleshooting runarounds, being offered discounts on new units instead of repairs, and confusing third-party purchase claim processes. Buying direct from Bluetti's website tends to produce better support outcomes.
Community
Active and growing β Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.
App experience
Rated 4.5/5 iOS and Android β 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 β 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. LFP across the rest of the range, though rated cycle life spans 2,500 (EB3A) to 6,000, and it varies WITHIN the Elite range rather than tracking it β the Elite 300 and Elite 200 V2 are rated 6,000 while the Elite 30 V2, Elite 10 Mini, Elite 320 and Elite 400 are rated 3,000+ and the Elite 100 V2 4,000+, so check the specific model. Dual-voltage (120V/240V) in flagships.
Worth knowing
Customer support inconsistency is the #1 risk factor. Older/discontinued units may become unrepairable β no spare parts policy for some models. Some reports of erratic communication from support agents.
Analyst note
EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while BLUETTI competes on value. The question is whether the EcoFlow ecosystem and support premium is worth it for your use case.
Growth path
DELTA 3800 Gen4
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 3,763Wh.
Accepts up to 2,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
Apex 200
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 2,560Wh.
Accepts up to 3,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
Both expand, but the Apex 200's higher solar ceiling (3,000W vs 2,000W) gives it the stronger off-grid growth path β more panels can feed a bigger bank as it grows.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
EcoFlow DELTA 3800 Gen4
Nobody owns a DELTA 4 (3800) yet. EcoFlow put it on sale on November 4 and ships it in late NovemberA10, so this page runs on EcoFlow's US store page and our own arithmeticA1A6A9.
I'd want to see the expansion adapter under a real load. Hypothetically, I'd hang a DELTA 3 Max Plus battery off itA6, run a fridge and a furnace blower through a transfer switch overnight, and watch whether the two packs drain together or one at a time. That's the test of whether two boxes act like one.
βCapacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.β
Sources
us.ecoflow.co Β· jp.ecoflow.co
BLUETTI Apex 200
Nobody has lived with an Apex 200 yet either. BLUETTI put it on sale on November 4B18, so what we have is its own page, its store listing and our arithmeticB1B13.
Its page still carries a typo worth knowing. The spec table lists 2,764.8 Wh, which is the Apex 300's battery pasted in; the badge, the text and every expansion total say 2,560 Wh, and so do weB14. The batteries are the same B300K and B500K the Apex 300 usesB19, but BLUETTI doesn't document cabling the two models togetherB17, so don't plan a mixed system yet.
β2,560 Wh of LFP (lithium iron phosphate) cells, rated 6,000+ cycles to 70% of capacity. The badge on the unit in BLUETTI's own render reads 3600W | 2560Wh.β
Sources
bluettipower.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
- Launch-day ledger: every entry is EcoFlow's own US store and documentation, or our labelled arithmetic. No owner or reviewer evidence exists yet. [DELTA 3800 Gen4 Β· 12 entries]
- No owner or reviewer reports exist yet: every entry is BLUETTI's own coming-soon page, spec table or store listing, or our own arithmetic on them. [Apex 200 Β· 19 entries]
- A1
βCapacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A2
βUS unit: 120 V AC, 60 Hz; rated 3,600 W continuous with a 7,200 W surge. It supports X-Boost (EcoFlow refers to the manual for the US X-Boost figure); X-Boost is unavailable while the unit charges from the wall or runs in bypass.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A5
βSolar: two inputs, 11β60 V DC at up to 20 A and 1,000 W each, 2,000 W total (XT60i; two XT60i-to-LP60 cables are in the box). EcoFlow lists six charging methods; its 800 W Alternator Charger is limited to 500 W through the Solar/DC port.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A6
βExtra Battery Port: up to two extra batteries through EcoFlow's Smart Extra Battery Expansion Adapter. Compatible: the DELTA Pro 3 Smart Extra Battery and the DELTA 3 Max Plus (2,048 Wh) Smart Extra Battery. EcoFlow quotes 4β12 kWh of expandable capacity.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A9
βRated for 6,000 cycles (EcoFlow: "15+ years"). Charges at 32β113Β°F (0β45Β°C), runs at 14β113Β°F (β10β45Β°C). Wi-Fi and Bluetooth with the EcoFlow app. Warranty: 3 years plus a 2-year extension when registered in the EcoFlow app.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A10
βOn sale at us.ecoflow.com from November 4, 2026 at $2,199; EcoFlow says it ships in late November. Kits: with two 160 W solar panels $2,899; with a DELTA 3 Max Plus extra battery (6 kWh in all) $2,999. EcoFlow also sells it in Japan, where it went on sale October 30 at Β₯240,900.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- B1
β2,560 Wh of LFP (lithium iron phosphate) cells, rated 6,000+ cycles to 70% of capacity. The badge on the unit in BLUETTI's own render reads 3600W | 2560Wh.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) Β· 2026-10-19 Β· [positive]
- B2
βAC output 3,200 W continuous on its own, 3,600 W once an expansion battery is attached. 120 V only; BLUETTI's FAQ sends buyers who need 120/240 V to the Apex 300.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-19 Β· [mixed]
- B3
βOutlets: three NEMA 5-20R household outlets (120 V, 20 A) and one TT-30R RV outlet (120 V, 30 A). Supported outlets can be switched and scheduled in the BLUETTI app.β
Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) / BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-19 Β· [mixed]
- B5
βSolar input up to 3,000 W: 2,000 W through a high-voltage MC4 input accepting 60β280 V, plus 1,000 W through a low-voltage XT60 input. BLUETTI quotes about 50 minutes to 80% with both inputs at full output.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-19 Β· [positive]
- B9
βExpansion: up to six B300K or B500K batteries per unit, which BLUETTI puts at 33.28 kWh with six B500Ks (7.68 kWh with one). Two or three Apex 200 systems link through BLUETTI's Hub A1 for up to 6,000 W and 99.84 kWh.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-19 Β· [positive]
- B10
βUPS mode exists, off by default and switched on in the BLUETTI app. BLUETTI's US store prints a switchover of 15 ms or less.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / BLUETTI US store, Apex 200 product listing (read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- B13
βBLUETTI's US store lists the Apex 200 at $1,099 at launch, against a $1,399 list price, and prints a UPS switchover of 15 ms or less. Still not published as of 2026-11-04: peak surge, warranty length, noise level.β
BLUETTI US store, Apex 200 product listing, bluettipower.com/products/apex-200-expandable-power-station (read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- B14
βThe spec table on BLUETTI's page lists 2,764.8 Wh (51.2 V, 54 Ah), which is the Apex 300's battery pasted in; the unit's badge, the page text and every expansion total say 2,560 Wh. We use 2,560 everywhere.β
Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) / Power Station Arena arithmetic on BLUETTI's published figures (our reading, not a maker statement) Β· 2026-10-19 Β· [negative]
- B16
βThe Apex 300's solar inputs top out at 60 V, so an array a long cable run from the house either loses power in the cable or needs BLUETTI's $699 Solar X 4K. The Apex 200's 60β280 V high-voltage input takes the same panels wired for more volts and less current, in the base unit.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / BLUETTI Apex 300 specifications / Power Station Arena arithmetic on BLUETTI's published figures (our reading, not a maker statement) Β· 2026-10-31 Β· [positive]
- B17
βBattery sharing between an Apex 200 and an Apex 300 is not documented. BLUETTI's page covers Apex 200 units linking to each other through the Hub A1 and parallel cables, and says nothing about the two models cabled together.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-31 Β· [mixed]
- B18
βOn sale November 4, 2026 by BLUETTI's page; sign-up for launch and pre-order news open since October. As of 2026-10-31 the page still read coming soon, with no store listing and no price.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-31 Β· [mixed]
- B19
βOperating pitch on BLUETTI's page: a fridge through an outage and an RV at the campsite from the same unit, with the same B300K and B500K batteries as the Apex 300 so later purchases carry over.β
BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) Β· 2026-10-19 Β· [positive]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if youβ¦
- βYou already own an EcoFlow extra battery. It takes the DELTA Pro 3 or DELTA 3 Max Plus batteryA6.
- βYou want the most battery in one box today. 3,763 Wh against 2,560 Wh, before anything is added.
- βA motor has to start on a published number. EcoFlow lists 7,200 W of surgeA2; BLUETTI lists no figure yetB13.
- βA computer sits on it. It's rated to switch over in no worse than 10 ms against 15 ms.
Buy the Apex 200 if youβ¦
- βYour plan might grow past two batteries. It takes up to sixB9.
- βYou're building a solar array. It accepts 3,000 W against 2,000 W, and its high-voltage input suits long cable runsB5B16.
- βIt will cycle every day. Same 6,000-cycle rating, lower cost per lifetime kWh.
- βYou'll lift it now and then. It's 59.5 lb against 67.5 lb.
- βYour RV takes a TT-30 plug. The Apex 200 has that outletB3.
If neither fits
If the job is a CPAP and a phone, both are too much box. Either one covers our CPAP night on 15% or less of its battery. A small unit you can carry in one hand does that job, and you keep the rest of the money.
The Bottom Line
I'd buy the Apex 200 and grow it. It costs less per kWh over the same rated life, takes half again as much solar, and its ceiling sits far above the EcoFlow'sB9.
Buy the DELTA 4 (3800) if an EcoFlow battery is already waiting for it. Then it's the bigger box from day one, with every rating on paperA2A6.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
How much is the DELTA 4 (3800) and when does it ship?
EcoFlow lists it at $2,199 on its US store. It went on sale on November 4, 2026, and EcoFlow says it ships in late November. The Apex 200 sells for $1,099.
Which one can hold more batteries?
The Apex 200. It takes up to six B300K or B500K batteries, which BLUETTI puts at 33.28 kWh with six B500Ks. The DELTA 4 (3800) takes up to two extra batteries, and EcoFlow quotes 4 to 12 kWh in all.
Can the DELTA 4 (3800) use a DELTA Pro 3 battery?
Yes. EcoFlow lists the DELTA Pro 3 extra battery and the DELTA 3 Max Plus extra battery as compatible, up to two of them, through its expansion adapter.
Which one is lighter, the Apex 200 or the DELTA 4 (3800)?
The Apex 200, at 59.5 lb against 67.5 lb. The DELTA 4 (3800) holds more battery: 3,763 Wh against 2,560 Wh.
Does the Apex 200 have a published surge rating and warranty?
Not yet. BLUETTI hasn't published its surge, warranty length or noise level. EcoFlow lists a 7,200 W surge for the DELTA 4 (3800) and a 3-year warranty plus 2 more years when it's registered in the EcoFlow app.
Where to buy
EcoFlow DELTA 3800 Gen4
$2,199.00
$2,199.00 Β· direct from EcoFlow
BLUETTI Apex 200Pick
$1,099.00
$1,099.00 Β· direct from BLUETTI
Prices may vary by retailer and are subject to change.