Head-to-head test
EcoFlow DELTA 3000 Gen4 vs BLUETTI Apex 300Less to Lift, More Inside. Can the Apex 300 Grow Past It?
More battery than the Apex 300 in a box nearly a third lighter, and the one thing it can't do is grow. I'd buy the DELTA 4 (3000), unless you'll outgrow 3,072 Wh or already own a roof full of panels.
Black Friday · 23 days out
Price to beat:Apex 300 $1,499
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Full profiles: EcoFlow DELTA 3000 Gen4 → · BLUETTI Apex 300 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunner’s take
Whole-Home Backup Tester
The lighter box holds more.
The DELTA 4 (3000) carries 3,072 Wh at 57.3 lb. BLUETTI's Apex 300 carries 2,764.8 Wh at 83.78 lb. That's 307 Wh more battery in a box 26.5 lb lighter.
On power, the two are closer than the weights suggest.
The Apex 300 runs 3,840 W continuously against the DELTA 4 (3000)'s 3,600 W. EcoFlow publishes a 7,200 W surge for the moment a motor startsA2, and BLUETTI publishes no surge figure. A fridge, a furnace blower, a router and lights fit inside either inverter with room left.
The catch is that 3,072 Wh is the end of the road.
The DELTA 4 (3000) has no battery portA6. The Apex 300 starts smaller and takes BLUETTI's expansion batteries. EcoFlow lists the DELTA 4 (3000) at $1,699 and the Apex sells for $1,699, so the real question is whether you'd ever need more than the EcoFlow holds.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Whatever the Apex spends that weight on, it buys a 240 W edge in output and a port for later, not more battery tonight. One reviewer moved it a few feet at a timeB8. That's the box you'd be dragging out of a closet in the dark when the power goes.
DELTA 4 (3000): 3,072 Wh at 57.3 lbA7Apex 300: 2,764.8 Wh at 83.78 lbA reviewer could carry the Apex 300 only a few feet at a time and couldn't lift it onto a tableB8
Why it mattersIf the box comes out of storage for outages, the DELTA 4 (3000) is the easier lift with more inside.
In a blackout the kitchen table holds a phone, a laptop and a router. The DELTA 4 (3000) charges the first two from USB with nothing else to buy. The Apex gets there only after a hub that one reviewer puts at about $300B11, and even then it holds less battery.
DELTA 4 (3000): one 140 W USB-C and two 65 W USB-C on the unitA3Apex 300: no USB-C or USB-A on the unitThe Hub D1 that adds them costs about $300 by one reviewer's figureB11
Why it mattersIf your outage kit is mostly phones and laptops, add the Hub D1 to the Apex's price before you compare.
The Apex's first expansion battery partly buys back the 307 Wh it started behind, so it pulls ahead only past 3,072 Wh. That's the line to draw. If your longest stretch without power fits inside the DELTA 4 (3000), the sealed box is the simpler buy. If you live off the battery every day, it's a dead end.
DELTA 4 (3000): no battery portA6Apex 300: takes BLUETTI expansion batteries8-Hour Blackout: 966 Wh left on the DELTA 4 (3000), 705 Wh on the Apex 300Van Life Daily needs 4,685 Wh: the DELTA 4 (3000) is 2,074 Wh short, the Apex 300 2,335 Wh short
Why it mattersOvernight outages point to the DELTA 4 (3000); daily off-grid living points to the Apex 300.
The specific dimensions that decide these two units — everything else is a tie.
Growth Path
Selected because: 3,072 Wh is the DELTA 4 (3000)'s ceiling. The Apex 300 starts 307 Wh lower and can add batteries.
solar input
Buy the DELTA 4 (3000) as a finished box, because that's what it is. EcoFlow lists no battery port for itA6. Outgrow 3,072 Wh and your next step is a second unit or the bigger DELTA 4, which has the port. What you buy is the ceiling.
The Apex 300's port only pays off past 3,072 Wh. It starts 307 Wh behind, so its first expansion battery spends part of itself catching up. Linking whole Apex 300s is a separate job, through a Hub A1 parallel box that one reviewer puts at around $699B12. I'd only start down that road for a house with a plan to grow.
Portability & Form Factor
Selected because: 57.3 lb against 83.78 lb, and the lighter box holds more.
weight
I'd carry the DELTA 4 (3000) down a basement stair by myself. It has a handle at each end, and EcoFlow sells a folding cart for it separatelyA7. The Apex 300 I'd want a hand truck for. One reviewer says its handles make the weight manageableB6. Another could only carry it a few feet at a timeB8.
If the box lives beside the water heater, weight stops mattering after day one. If it comes out of a closet when the lights go, you lift it in the dark, in a hurry. That's the night the lighter box earns its place.
What the Specs Don't Tell You
Selected because: The Apex takes 2,400 W of solar against 1,000 W and runs 240 W more; only EcoFlow publishes a surge figure.
The Apex refills from the sun far faster, if you own the panels. It takes 2,400 W of solar. The DELTA 4 (3000) takes one input at 1,000 W, 11 to 60 VA5, so 3,072 Wh needs more than three hours of full sun at best. A roof's worth of panels is where the Apex earns its weight.
From the wall, the DELTA 4 (3000) can take a whole circuit. EcoFlow rates its charging at up to 1,800 WA4. At 120 V that's 15 A, the full rating of a 15 A circuitA4, so on a kitchen circuit shared with a toaster I'd turn the rate down in the EcoFlow app. Our record carries no wall-charging figure for the Apex 300.
Your Life, Your Pick
Selected because: Every scenario but Van Life Daily goes to both, and that one goes to neither.
Capacity doesn't separate them on any ordinary night. The 8-hour blackout leaves 966 Wh on the DELTA 4 (3000) and 705 Wh on the Apex 300. A CPAP night, a remote workday and a tailgate fit in either with room left.
Van Life Daily is the row to read twice. It needs 4,685 Wh and beats both. The Apex 300 can add batteries toward it. The DELTA 4 (3000) stays 2,074 Wh short for good.
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3000 Gen4
Front panel
- 1USB-C · 140 WOutUp to 140 W (USB-PD up to 28 V at 5 A). The port for a laptop.
- 22× USB-C · 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 · 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.
- 54× 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 · Product image, EcoFlow Japan store · numbers and labels are ours. Ratings from EcoFlow’s US spec table; outlet shapes read by us from EcoFlow’s picture, taken of the Japanese unit, which shares the US panel.
Input side
- 1Solar/DC in · 1,000 WIn11 to 60 V, up to 20 A, 1,000 W.
- 2AC in · 1,800 WIn100–120 V at 15 A. Charges at up to 1,800 W, which at 120 V is the whole of an ordinary 15 A circuit.
No battery port: the 3000 doesn’t take extra batteries.
Photo: EcoFlow · Product image, EcoFlow Japan store · numbers and labels are ours. Ratings from EcoFlow’s US spec table and the panel’s own printing.
BLUETTI Apex 300
Front panel
- 1120 V / 240 V switchOutSwitches the AC output between 120 V and 240 V. BLUETTI’s manual says switching cuts the AC output.
- 2Charging-mode switchInPrinted Silent, Auto and Turbo. By BLUETTI’s manual, Turbo charges at up to 3,840 W from AC and Silent at up to 500 W.
- 34× 20 A outletsOutFour 120 V NEMA 5-20R outlets, each printed 20A Max., sharing the 3,840 W printed above them. With the switch on 240 V, BLUETTI’s manual limits each to 16 A and each pair to 1,920 W (printed over each pair).
The 240 V, RV and P050A outlets and the AC inlet are on the left side; the solar inputs and the battery port on the right. No USB or 12 V ports: those need BLUETTI’s separately sold Hub D1.
Photo: BLUETTI · Product image, BLUETTI store · numbers and labels are ours. Ratings printed on BLUETTI’s panel; outlet types and limits from BLUETTI’s US Apex 300 manual.
Left side (AC)
- 1AC in · 1,800 WInPrinted 120V/15A Max. BLUETTI’s manual rates it 1,800 W, charging and pass-through together.
- 2P050A in/out · 50 AIn · OutPrinted AC IN/OUT Port 120V/240V 50A Max. By BLUETTI’s manual it charges from a TT-30 or L14-50 source through BLUETTI’s P050A cables, up to 6,000 W at 120 V or 12,000 W at 240 V with pass-through. As an output it needs BLUETTI’s Hub A1.
- 3TT-30R RV outlet · 30 AOutPrinted AC OUTPUT 120V/30A Max.: a camper’s 30 A shore-power cord plugs straight in. Up to 3,600 W by BLUETTI’s manual, or 16 A with the switch on 240 V.
- 4NEMA 14-50R · 240 VOutPrinted AC OUTPUT 120V/240V 50A Max. By BLUETTI’s manual it gives up to 3,840 W from the battery (16 A at 240 V), and 50 A when passing grid power through.
Also on this side: a grounding terminal and a reset button printed Circuit Protector 125VAC/20A. The outlets sit behind covers in BLUETTI’s picture.
Photo: BLUETTI · Product image, BLUETTI store · numbers and labels are ours. Ratings printed on BLUETTI’s panel; outlet types and limits from BLUETTI’s US Apex 300 manual and its numbered diagram on BLUETTI’s store page.
Right side (solar and battery)
- 12× Solar/DC in · 1,200 WInPrinted 12-60V/20A/1200W Max.×2: two XT60 inputs behind one cover, 2,400 W in all. BLUETTI’s manual says the full 2,400 W needs Turbo mode, and a car socket gives 96 W at 12 V or 192 W at 24 V.
- 2Battery portIn · OutPrinted Battery Expansion Port/51.2V. BLUETTI’s manual says it takes up to six B300K batteries, 19,353.6 Wh in all.
Both ports sit behind covers in BLUETTI’s picture.
Photo: BLUETTI · Product image, BLUETTI store · numbers and labels are ours. Ratings printed on BLUETTI’s panel; connector type, charging modes and battery count from BLUETTI’s US Apex 300 manual.
Strengths & trade-offs
EcoFlow DELTA 3000 Gen4
Strengths
- +Lighter by 26.5 lb
- +Larger battery capacity
Trade-offs
- –No major technical downsides compared to rival.
BLUETTI Apex 300
Strengths
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Significantly heavier (+26.5 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
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 cover the 2,100 Wh weekend. The DELTA 4 (3000) does it at 57.3 lb, so it's the one you'd rather lift into the car.
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 finish the night. The DELTA 4 (3000) has 966 Wh left and the Apex 300 has 705 Wh, so capacity doesn't decide this one.
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
DELTA 3000 Gen4
A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here. What separates them is the box next to your pillow, and here the two ratings do settle it: the DELTA 3000 Gen4's 40dB is EcoFlow's maximum under heavy charge and discharge, while the Apex 300's 45dB is its maker's best case. A ceiling below the other unit's floor holds whichever way you read the two conventions, so the DELTA 3000 Gen4 is the quieter of the two. Neither figure is a reading at a 40W draw, though, so that tells you which is quieter, not how quiet either is beside a bed — look for hands-on reports before either one goes next to a pillow.
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 cover the day with room left. The DELTA 4 (3000) charges a laptop straight from its 140 W USB-C port. The Apex 300 has no USB on the unit, so the laptop's own charger goes in an outlet.
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, weight is: at 57.3 lbs the DELTA 3000 Gen4 is the one you'll be glad you brought. Fan noise under load is worth a listen too — it's audible in the lulls between songs.
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 covers 4,685 Wh. The DELTA 4 (3000) is 2,074 Wh short and can't add a battery. The Apex 300 is 2,335 Wh short and can.
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 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 3000 Gen4 runs 12.7h vs 11.5h.
$1,699 list · direct from EcoFlow
Planning for more than this? Describe your whole setup and get it sized →
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 0–174.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–34.8hHigh-Draw Appliances
These reveal the real limitsscale 0–2.6h¹ 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
November 4, 2026
Verdict: the DELTA 3000 Gen4
I'd buy the DELTA 4 (3000), unless you know you'll outgrow it. It holds 3,072 Wh against 2,764.8 Wh, weighs 57.3 lb against 83.78 lb, and lists at $1,699 against the Apex 300's $1,699, so it costs less per watt-hour. Its USB-C ports are on the box, where the Apex needs a Hub D1 that one reviewer prices at about $300B11. The Apex answers with a battery port, 2,400 W of solar input and 240 W more continuous output. The DELTA 4 (3000) has no battery port at allA6 and ships in early DecemberA10, so a buyer who will grow, or who needs power this month, should take the Apex.
At today's prices the Apex 300 is the cheaper unit ($1,499 against $1,699, with the Apex 300 $200 under its typical $1,699). At typical prices the two list the same ($1,699), and that is what the verdict weighs. Prices checked 31 days ago.
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.
$1,699.00 · direct from EcoFlow
or check the Apex 300 price$1,499.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated November 4, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Tailgating, 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 3000 Gen4 rates 4.8/5 (86th percentile of 29 Large-class units), and Apex 300 rates 4.8/5 (89th percentile of 29 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.
The Heavier Box Holds Less
The Apex 300 is 83.78 lb and the DELTA 4 (3000) is 57.3 lb, yet the lighter one holds 3,072 Wh to 2,764.8 Wh. One adult can lift the EcoFlow into a car. The Apex is a job for a hand truck or a second person.
Apex 300: 45dB Published
45dB is about as loud as a running refrigerator. The DELTA 3000 Gen4 is rated 40dB, and the two are not the same kind of figure: the DELTA 3000 Gen4's is a MAXIMUM under heavy charge and discharge, while the Apex 300's is its maker's best case — so the real gap can only be wider than the numbers suggest: the DELTA 3000 Gen4's ceiling already sits below the Apex 300's floor. For most people, fan noise around 45dB and up is where sleep starts to suffer.
The Ceiling Comes in the Box
The DELTA 4 (3000) has no battery port, so 3,072 Wh is all it will ever hold. The Apex 300 starts at 2,764.8 Wh and takes expansion batteries. It pulls ahead only once you need more than 3,072 Wh.
Apex 300: Power Lifting to 7,680W
The Apex 300 has BLUETTI's Power Lifting mode, which runs a resistive appliance rated up to 7,680W from its 3,840W inverter. It does that by delivering less power than the appliance asks for, not more than the inverter has: the heater still works, it just heats more slowly. Two things follow. BLUETTI scopes the mode to purely resistive loads — a heater, a kettle, an incandescent lamp — so it does nothing for a fridge compressor, a pump or a power tool, and this record publishes no surge figure at all, so read the mode as a resistive-load feature rather than as starting ability. And it is not a reason to size down, because running a load that big from 2,765Wh is a short session either way. Genuinely useful if a heater or a kettle is why you're buying; beside the point otherwise. EcoFlow's X-Boost works the same way, running a resistive load past the inverter's rating at reduced power, but our record for the DELTA 3000 Gen4 carries no X-Boost figure, so check EcoFlow's spec sheet before comparing the two ceilings.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. Both figures are maximums rather than guarantees: EcoFlow's depends on registering the unit in the EcoFlow app, which adds two years to a three-year standard term; BLUETTI's on buying direct from BLUETTI or registering the unit, since reseller purchases carry a shorter term.
Full record above — the Test Desk pick is the DELTA 3000 Gen4.
Check DELTA 3000 Gen4 price →or check the Apex 300 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 ($0.09/kWh vs $0.10/kWh). The price difference is what you see on the sticker — neither is a hidden bargain or rip-off. 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 — the wear horizon is identical and decides nothing here.
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. 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 — 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 — 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 — 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. 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 — 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 — 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 3000 Gen4
FIXED CAPACITYFixed at 3,072Wh — a sealed, complete system rather than a starting point. There's no expansion port, so that figure is the ceiling: check it against your longest unplugged stretch before you buy.
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.
Apex 300
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 2,765Wh.
Accepts up to 2,400W of solar. Enough for a serious multi-panel array.
Limited ports. You'll likely need a power strip or splitter.
Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Don't read the Apex 300's expandability as a straight win here: it starts at 2,765Wh, below the DELTA 3000 Gen4's 3,072Wh, so a first expansion battery largely buys back capacity the DELTA 3000 Gen4 already includes. It only pulls ahead if you'd grow past 3,072Wh — short of that, the DELTA 3000 Gen4'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 3000 Gen4
Nobody owns one yet. The DELTA 4 (3000) went on sale in the US on November 4 and EcoFlow says it ships in early DecemberA10, so this side runs on EcoFlow's store page and FAQ, plus our arithmeticA3A4.
I'd want to load every USB port at once and watch the screen. EcoFlow's spec table says the two 65 W ports and the USB-A share 16 W when used togetherA3. With one on the bench, I'd plug two laptops into the 65 W ports, add a phone, and see what each one actually gets.
“Capacity 3,072 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3000 Gen4; buyers and the press call the pair the DELTA 4.”
Sources
us.ecoflow.co · jp.ecoflow.co
BLUETTI Apex 300
The steadiest complaint is firmware, not hardware. After updates, one owner's unit stuck in Backup modeB1, another stopped charging with an errorB2, a third lost its Home Assistant linkB3, and a fourth kept being offered an update it already hadB4. A later update can fix that kind of thing, but it's the pattern on record.
Reviewers like the fans and dislike the bare face. One calls the fans relatively tame under loadB5. Two call the Hub D1 that adds USB and DC ports a steep extraB7B11. Field data is thin, and most of it is early press reviews rather than long-term ownersB0.
“I was using Bluetti-bt until the latest Bluetti firmware update. I then started having disconnects.”
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 3000 Gen4 · 12 entries]
- Multiple owners report firmware updates causing app glitches, mode-lock issues, error codes, or Bluetooth/Home Assistant disconnects shortly after updating. [Apex 300 · 4 entries]
- Reviewers consistently flag the lack of built-in USB/DC ports as a design tradeoff requiring costly add-on accessories (Hub D1, Hub A1). [Apex 300 · 4 entries]
- The unit's extreme weight (~85 lbs) is repeatedly described as making it barely 'portable' and hard to carry alone. [Apex 300 · 2 entries]
- A2
“US 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.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A3
“AC outlets: 5 total, four rated 20 A max and one rated 30 A max (on EcoFlow's product images, four T-slot outlets and a three-slot twist-lock). USB-A: one port, 36 W max. USB-C: one at 140 W max and two at 65 W max; the two 65 W ports share circuitry with the USB-A, limited to 16 W total when used together. No 12 V car socket.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A4
“AC input 100–120 V, 15 A, 50/60 Hz; X-Stream charging up to 1,800 W from a US wall outlet. Our arithmetic: 1,800 W at 120 V is 15 A, the full rating of an ordinary 15 A circuit, so on a shared circuit you would set the charge rate lower in the EcoFlow app.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A5
“Solar: one input, 11–60 V DC at up to 20 A, 1,000 W (XT60i; an XT60i-to-LP60 cable is in the box). EcoFlow lists six charging methods; its 800 W Alternator Charger is limited to 500 W through the Solar/DC port.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A6
“No extra-battery port. EcoFlow lists expansion only for the DELTA 3800 Gen4 (two extra batteries through its expansion adapter); the 3000 is sealed at 3,072 Wh.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A7
“Weight 57.3 lb (26 kg); 16.77 × 11.36 × 12.09 in without handles, 18.76 in long with them. A handle at each end; EcoFlow sells a folding transport cart separately ($109 at launch, listed at $199). EcoFlow calls it the smallest and lightest portable power station in its class (3 kWh and 3,600 W).”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A10
“On sale at us.ecoflow.com from November 4, 2026 at $1,699; EcoFlow says it ships in early December. Kit with two 160 W solar panels $2,299. EcoFlow also sells it in Japan, where it went on sale October 30 at ¥179,900.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B1
“I updated my Apex 300 to the latest firmware yesterday. Now it's stuck in 'Backup' mode... Now when I go into the app to try to change it back, it flashes to...”
BLUETTI Community forum — 'Apex 300 stuck in Backup mode after last firmware update' · 2025-11 · [negative]
- B2
“When the system reached 97% charge, I decided to install the firmware updates. After the update completed, the charging stopped and I received Error 004.”
BLUETTI Community forum — 'Error E004 Apex 300' · 2025-11 · [negative]
- B3
“I was using Bluetti-bt until the latest Bluetti firmware update. I then started having disconnects.”
GitHub bluetti-official/bluetti-home-assistant issue #95 — 'APEX 300 and Hub A! now working' · 2026-05 · [mixed]
- B4
“Problem is every time I connect to the power station it shows that I still have an update, and I need to tap to upgrade which then tells me I am up to date.”
BLUETTI Community forum — 'Check For Update App issue' · 2025-09 · [negative]
- B5
“Some units sound like small jet engines under load, but the Apex 300's fans are relatively tame.”
Techspective — 'Bluetti Apex 300 with B300K Review' · 2025-09 · [positive]
- B6
“It's heavy, no question, but the handles and modular battery design make it manageable.”
Techspective — 'Bluetti Apex 300 with B300K Review' · 2025-09 · [mixed]
- B7
“Not having DC or USB ports on the face is a tradeoff. The Hub D1 solves the problem—but it's an additional $300 accessory that you then have to bolt on after the fact.”
Techspective — 'Bluetti Apex 300 with B300K Review' · 2025-09 · [negative]
- B8
“In fact, it's so heavy I can hardly carry it more than a few feet at a time and have been unable to lift it onto a table.”
T3 — 'Bluetti Apex 300 review: transform your off-grid life' · 2025-11 · [negative]
- B11
“That Bluetti D1 Power Hub that gives you your DC and USB ports costs about $300, which is a steep price for what you're getting.”
TheSolarLab — 'Bluetti Apex 300 Review: Cheap, Practical Home Backup?' · unknown · [negative]
- B12
“Say you want to connect multiple Apex 300 power stations together, you'll need to buy the Bluetti Hub A1 Parallel Box, which retails for around $699!”
TheSolarLab — 'Bluetti Apex 300 Review: Cheap, Practical Home Backup?' · unknown · [negative]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3000 Gen4 if you…
- →You'll carry it. 57.3 lb against 83.78, and it holds more.
- →Your outages last a night or two, and 3,072 Wh covers them with room left.
- →You charge laptops and phones. USB-C is on the box, where the Apex needs a hubB7.
- →You want a published surge figure. EcoFlow rates it to 7,200 WA2. BLUETTI publishes none for the Apex.
Buy the Apex 300 if you…
- →You'll outgrow 3,072 Wh. The Apex 300 takes expansion batteries, and the DELTA 4 (3000) never willA6.
- →You own a big solar array. 2,400 W of input against 1,000 W.
- →You need power before December. The DELTA 4 (3000) ships in early DecemberA10, and the Apex is on sale now at $1,699.
- →A heater or a kettle is the big load. BLUETTI's Power Lifting runs resistive appliances rated up to 7,680 W, at reduced power.
If neither fits
If you live off the battery every day, start bigger than either. Van Life Daily needs 4,685 Wh. The DELTA 4 (3000) can never grow toward it, and the Apex 300 starts 2,335 Wh short, so price a base unit and an extra battery together from day one.
The Bottom Line
If your outage fits in 3,072 Wh and the box has to move, buy the DELTA 4 (3000). More battery than the Apex 300, less to lift, USB-C on the box, and a lower cost per watt-hour.
If you'll outgrow it, run a big array, or need power before it ships in early DecemberA10, buy the Apex 300. It's the first block of a system, and it's on sale now.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Can I buy the EcoFlow DELTA 4 (3000) in the US?
Yes. EcoFlow put it on sale at its US store on November 4, 2026, and says it ships in early December. It lists at $1,699.
Does the BLUETTI Apex 300 have USB ports?
Not on the unit itself. Our record lists no USB-C, USB-A or 12 V car outlet on the Apex 300. Reviewers say BLUETTI's Hub D1 adds them, sold separately.
Can the DELTA 4 (3000) add an extra battery?
No. It has no battery port, so 3,072 Wh is its ceiling. The Apex 300 takes BLUETTI expansion batteries.
Which one has more power output?
The Apex 300 runs 3,840 W continuously against 3,600 W for the DELTA 4 (3000). EcoFlow rates the DELTA 4 (3000) to a 7,200 W surge. BLUETTI publishes no surge figure for the Apex 300.
Which one charges faster from solar?
The Apex 300, which accepts 2,400 W of solar. The DELTA 4 (3000) has one solar input that takes up to 1,000 W at 11 to 60 V.
Brand matchup
EcoFlow vs BLUETTI: measured across every matchup →Where to buy
EcoFlow DELTA 3000 Gen4Pick
$1,699.00
$1,699.00 · direct from EcoFlow
BLUETTI Apex 300
$1,499.00
$1,499.00 · direct from BLUETTI
down from $1,699 · 12% below usual
Last checked 31 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.