Head-to-head test
EcoFlow DELTA Pro 3 vs BLUETTI Apex 300
The Apex 300 is $1,100 cheaper, 28.6 lbs lighter, and has the better surge ratio for hard-starting compressors, but the DELTA Pro 3 carries 1,331Wh more energy and runs 15dB quieter — for anyone who needs that headroom or has to sleep near it, that combination beats a lower price tag.
Full profiles: EcoFlow DELTA Pro 3 → · BLUETTI Apex 300 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
$2,799.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
$1,499.00 · direct from BLUETTI
down from $1,699 · 12% below usual
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
The EcoFlow DELTA Pro 3 costs $2,799 and holds 4,096Wh; the BLUETTI Apex 300 costs $1,699 and holds 2,764.8Wh. That $1,100 and 1,331Wh gap is the headline, but it's not the whole story — the Apex 300 also weighs 83.78 lbs against the DELTA Pro 3's 112.4 lbs, which means the smaller battery is also the lighter box.
Both are expandable, both carry 5-year warranties, and both run near-identical costs per lifetime kilowatt-hour once you do the arithmetic ($0.20 versus $0.19). Where they actually split is capacity headroom and handling: the DELTA Pro 3 finishes nearly every scenario with more tank left, while the Apex 300 answers back with a stronger surge ratio, 28.6 lbs less to lift, and a genuinely lower per-year ownership cost.
If you're optimizing for the smallest possible check and don't mind the extra weight, the Apex 300 is the rational buy. If you want a unit that's lighter than its rival despite holding more energy, and quieter while it does it, that's the DELTA Pro 3.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Worked as energy density, that's roughly 36 Wh per pound for the DELTA Pro 3 against roughly 16 Wh per pound for the Apex 300 — more than double. Whatever's inside the Apex 300's chassis besides battery cells, it isn't buying capacity.
DELTA Pro 3 holds 4,096Wh and weighs 112.4 lbsApex 300 holds 2,764.8Wh and weighs 83.78 lbs
Why it mattersAnyone who has to lift this rather than roll it into a permanent spot should treat the DELTA Pro 3's lighter weight as a bigger deal than its higher price suggests.
rated cycles
That surge cushion arrives paired with a noisier unit — 45dB under load against the DELTA Pro 3's 30dB, a 15dB gap that's the difference between background hum and something you notice across a room.
Apex 300 surges to 7,680W against 3,840W continuous — a 2.0x ratioDELTA Pro 3 surges to 6,000W against 4,000W continuous — a 1.5x ratio
Why it mattersFor a fixed, detached installation running compressor loads, the Apex 300's surge margin can matter more than its fan noise; for anything indoors or near living space, that math flips.
That reserve is what absorbs the outage that runs a day longer than planned or the camping trip where someone forgets to switch off a space heater; the Apex 300 has far less room to absorb the same surprise.
Weekend Camping needs 2,100Wh: DELTA Pro 3 uses 60% of capacity, Apex 300 uses 89%8-Hour Blackout needs 1,645Wh: DELTA Pro 3 uses 47%, Apex 300 uses 70%
Why it mattersBuyers whose trips or outages could plausibly run past the modeled numbers should value the DELTA Pro 3's buffer over the Apex 300's lower sticker price.
But that's only true if you use the extra 1,331Wh. Priced per year of warranty coverage instead, the DELTA Pro 3 is genuinely the more expensive unit to hold, at $640 a year against $360.
DELTA Pro 3 costs $640 per warranty-year against the Apex 300's $360Both units carry $0.20 and $0.19 per lifetime kWh — a near-tie
Why it mattersBuyers who won't regularly touch the DELTA Pro 3's extra capacity are better off banking the $1,100 and taking the Apex 300; buyers who will use it are paying for headroom, not for a worse deal.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: DELTA Pro 3 wins four of six modeled scenarios by a wide capacity margin — the clearest decision driver.
CPAP Overnight is the one true tie: both units use under 15% of capacity, so there's no power reason to pay more for that job alone. Everywhere else the DELTA Pro 3 pulls ahead, and Van Life Daily defeats both units outright at 135% and 199% of the 4,685Wh required — neither is sized for that job.
The pattern across the scenarios that do split is consistent: the DELTA Pro 3 finishes with meaningfully more capacity in reserve, not a narrow edge. That's the case for treating this as a headroom purchase rather than a per-scenario coin flip.
Portability & Form Factor
Selected because: Apex 300 is the heavier unit despite less capacity — a genuine surprise worth explaining.
weight
At 83.78 lbs the Apex 300 is a braced, two-hand lift rather than something you stroll across a campsite with. The DELTA Pro 3 at 112.4 lbs is a two-person lift over a tailgate — it carries the bigger battery, and 28.6 lbs more of it.
Fan noise tracks the same direction. The Apex 300 runs 45dB under load against the DELTA Pro 3's 30dB, a gap that shows up as audible hum in a quiet room during charging. If either unit is going to sit near where people sleep or work, that 15dB matters as much as the weight does.
Lifetime Value
Selected because: Near-identical cost per lifetime kWh but a real gap in cost per warranty-year — needs to be stated plainly.
cost / lifetime kWh
Run the ownership math to the end of both service lives and the two units land within a cent of each other per kilowatt-hour — $0.20 for the DELTA Pro 3, $0.19 for the Apex 300. The extra $1,100 upfront on the DELTA Pro 3 is nearly paid back by its extra capacity and 500 additional cycles.
Priced per warranty-year instead, the gap reopens: $640 for the DELTA Pro 3 against $360 for the Apex 300, on identical 5-year terms. That's the honest number for anyone not planning to use the full extra 1,331Wh — the Apex 300 is the cheaper unit to hold, full stop.
What the Specs Don't Tell You
Selected because: Surge ratio, noise, and warranty value are the concrete spec-true tiebreakers.
rated cycles
The Apex 300's 2.0x surge ratio (7,680W over 3,840W continuous) beats the DELTA Pro 3's 1.5x (6,000W over 4,000W) — a real inverter-quality edge for starting a fridge or AC compressor cold. It comes bundled with the louder fan noted above, so it reads best as an installed-appliance spec, not a bedroom spec.
Warranty terms are identical at 5 years on both, so the cost-per-warranty-year gap comes entirely from the price difference, not unequal coverage. Neither buyer is getting shorted on protection; one is just paying more for it.
Strengths & trade-offs
EcoFlow DELTA Pro 3
Strengths
- +Larger battery capacity
- +Higher AC output
Trade-offs
- –Substantially more expensive (+$1,100) than the Apex 300.
- –Significantly heavier (+28.6 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Shorter-lived battery — rated for 4,000 charge cycles vs the Apex 300's 6,000, so it wears out sooner.
BLUETTI Apex 300
Strengths
- +Costs $1,100 less
- +Lighter by 28.6 lb
- +Faster solar charging
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –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
Apex 300
The DELTA Pro 3 at 112.4 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the Apex 300 by default — and it earns it, covering the 2,100Wh with 250Wh to spare. Capacity was never the DELTA Pro 3's problem here; getting to a campsite was.
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
DELTA Pro 3
Both survive the night. The DELTA Pro 3 finishes at 47% used with 1,837Wh left — 1.1 more nights like it. The Apex 300 finishes at 70% with 705Wh, 43% of a second night. If your outages tend to run past one evening, that difference is the whole argument between them.
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 Pro 3
A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here, and the percentages are a formality. What matters is the box next to your pillow, and the only published difference is a rating: the DELTA Pro 3 is rated 30dB against the Apex 300's 45dB. Each is the maker's own published rating, and the makers do not measure the same way, some quoting a best case and some a figure under load, so neither number describes a 40W draw and the two are not really comparable. Treat them as a reason to look for hands-on reports before either one goes next to a bed, not as a difference you can count on hearing.
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
DELTA Pro 3
The DELTA Pro 3 clears the workday at 26% used, banking 2,572Wh — late work, extra calls, or a second laptop charge without arithmetic. The Apex 300 at 39% also finishes, with 1,440Wh of slack for the unplanned.
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
Apex 300
The DELTA Pro 3 at 112.4 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the Apex 300 by default — and it earns it, covering the 670Wh with 1,680Wh to spare. Capacity was never the DELTA Pro 3's problem here; getting to a tailgate was.
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 covers this scenario's 4,685Wh: the DELTA Pro 3 comes up 1,203Wh short (about 74% covered), the Apex 300 2,335Wh (50%). Either gets you most of the way, so this is a scenario you plan around rather than one you should rule them out for.
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 Pro 3 runs 17h vs 11.5h.
$2,799 list · direct from EcoFlow
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–232.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–46.4hHigh-Draw Appliances
These reveal the real limitsscale 0–3.5h¹ 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 15, 2026
Verdict: the DELTA Pro 3, on Power Score margin
Say this plainly first: the Apex 300 is the cheaper unit to own by the engine's own math, at $0.19 per lifetime kWh and $360 a warranty-year against the DELTA Pro 3's $0.20 and $640. If pure ownership economics is the whole question, take the Apex 300 and keep the $1,100. But the DELTA Pro 3 wins on every scenario it doesn't tie, finishing Weekend Camping at 60% of capacity used against the Apex 300's 89%, and it runs 15dB quieter doing it. It pays for that with 28.6 lbs more to move than the Apex 300's 83.78. A unit that leaves real headroom in an outage, and stays quiet through one, is worth the premium for most buyers here.
Today the Apex 300 is $1,499, $200 under its typical $1,699. The verdict weighs typical prices, not today's. Prices checked 1 day ago.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 15, 2026. The links below open EcoFlow's and BLUETTI's current prices.
$2,799.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
or check the Apex 300 price$1,499.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 15, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, DELTA Pro 3 rates 4.0/5 (40th percentile of 16 Home Backup-class units), and Apex 300 rates 5.0/5 (99th percentile of 26 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 Smaller Battery Is the Heavier Box
The Apex 300 weighs 83.78 lbs against the DELTA Pro 3's 112.4 lbs, a 28.6-lb gap in the Apex 300's favor, though it holds 1,331Wh less capacity. Both are two-hand lifts; the Apex 300 is the easier of them.
15 Decibels Under Load
The Apex 300 runs at 45dB under load against the DELTA Pro 3's 30dB. Noticeable in a quiet room during charging, less relevant if the unit lives outside or in a garage.
Apex 300's Bigger Surge Cushion
7,680W surge against 3,840W continuous is a 2.0x ratio, ahead of the DELTA Pro 3's 1.5x (6,000W over 4,000W continuous). That extra margin matters most for hard-starting compressors.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. The Apex 300's figure is a maximum rather than a guarantee — it depends on buying direct from BLUETTI or registering the unit, since reseller purchases carry a shorter term. Worth saying because the per-dollar framing can suggest otherwise: the Apex 300 works out at 2.9 years of cover per $1,000 spent against the DELTA Pro 3's 1.8, but that spread is the price gap, not the terms.
Battery Lifespan in Real Years
The Apex 300 is rated for 6,000 cycles vs 4,000. In real life: at daily use, that's 16.4 vs 11 years. At weekend use (twice a week), it's 58 vs 38 years. One caution reading years across different sizes: a cycle is 2,765Wh on the Apex 300 and 4,096Wh on the DELTA Pro 3, so count lifetime energy — roughly 16,589 kWh against 16,384 kWh over the rated life. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Full record above — the Test Desk pick is the DELTA Pro 3.
Check DELTA Pro 3 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
The Apex 300 wins on both sticker price and long-term value. At $0.1/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
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 very top of the range, the DELTA Pro Ultra platform stacks batteries and inverters into whole-home backup — a flagship path, not a line-wide feature.
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 Pro 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 4,096Wh.
Accepts up to 2,000W 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.
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.
Generous port selection supports complex multi-device setups.
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
Both expand, so neither locks you out of growth — decide on capacity, price, and the rest, not the expansion checkbox.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA Pro 3
The DELTA Pro 3 has a track record behind it. Reviewers call it a gold-standard whole-home backup unit for 2026, citing the 4,096Wh LFP pack, 4,000W dual-voltage output, and 6,000W surge via X-BoostA1A4. The charging story draws specific praise: multi-charge tech reaches 0-80% in about 50 minutes on up to 7,000W input, with a full charge around 90 minutesA3.
The weight, at roughly 113.5 lbs, is acknowledged by reviewers as real but not disqualifying for a unit in this capacity classA4 — it is, though, the heavier of the two boxes on this page.
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
Sources
ecoflow.com · amazon.com · homedepot.com · thepowerpick.com · outboundpower.com · techradar.com · thesolarlab.com
BLUETTI Apex 300
The Apex 300 is new enough that independent long-term owner data barely exists yet; most of what's available is press review coverage plus a handful of posts on BLUETTI's own community forum, so treat this as thin and early. What's there is a mixed picture: reviewers say its fans are relatively tame compared to units that sound like small jet engines under loadB5, and the handles help make the 83.78-lb weight manageable even though one reviewer said they could barely carry it a few feet or lift it onto a tableB6B8.
Firmware has been the recurring irritant — multiple community-forum posts describe updates locking the unit into Backup mode, throwing Error 004 mid-charge, or breaking Bluetooth/Home Assistant connectionsB1B2B3B4. Reviewers also flag that the Apex 300 skips built-in USB/DC ports on its face, pushing buyers toward a $300 Hub D1 accessory just to get them backB7B11.
“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
- Huge 4,096Wh LFP capacity, 4,000W dual-voltage output, very fast charging, and big expandability are the standout praise; it's heavy at ~113 lbs. [DELTA Pro 3 · 2 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]
- A1
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
ecoflow.com / amazon.com — DELTA Pro 3 · 2026 · [positive]
- A3
“Multi-charge technology reaches 0-80% in about 50 minutes using up to 7,000W input, with a full charge in roughly 90 minutes; up to 2,600W solar.”
outboundpower.com / techradar.com — DELTA Pro 3 review · 2026 · [positive]
- A4
“Weighs about 113.5 lbs; reviewers call it a gold-standard whole-home backup unit for 2026.”
techradar.com / thesolarlab.com — DELTA Pro 3 review · 2026 · [positive]
- 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]
Research compiled July 15, 2026.
What Owners Actually Report
Drawn from 73 comments on independent review channels — not from retailer reviews, which skew to the first week of ownership. Each line is our summary of one commenter's claim, linked to the original. We record what they said, including where it contradicts the spec sheet.
EcoFlow DELTA Pro 3
74 claims from 50 comments · 50 from owners · 22 with figures
- Charging
- 8 · 30% negative
- Runtime
- 7 · 0% negative
- Price & value
- 11 · 3% negative
- Expandability
- 7 · 97% negative
- Warranty & support
- 8 · 69% negative
What owners complain about
His DP3 can only charge from an external 120V source while outputting 240V.
Chargingowner7 agreedsource →
At almost 120 lb he would not call the DP3 portable.
Size & weightmeasuredowner3 agreedsource →
Regrets buying the DP3 over the F3800 because it lacks 240V passthrough.
Expandabilityowner4 agreedsource →
What owners praise
Recharges in about 70 minutes at 3400W from a 240V generator inlet.
Chargingmeasuredowner57 agreedsource →
Ran lights, fans, modem, fridge and a 1300W air conditioner through a 5-day hurricane outage.
Runtimemeasuredowner30 agreedsource →
Costco sells a DELTA Pro 3 twin pack at $4,999, dropping to $4,499 on sale.
Price & valuemeasuredowner6 agreedsource →
BLUETTI Apex 300
36 claims from 23 comments · 18 from owners · 6 with figures
- Price & value
- 10 · 8% negative
- Solar input
- 6 · 53% negative
- Inverter & surge
- 2 · 0% negative
- Build quality
- 2 · 0% negative
- Runtime
- 2 · 100% negative
What owners complain about
TV, router, Tablo and Firestick drain it from 100% in 7-9 hours; runtime figures are lies.
Runtimemeasuredownersource →
Dropping to a 60V PV max is a deal killer versus the 150V per string they run on the AC300.
Solar inputowner1 agreedsource →
App is portrait-only.
App & firmwareownersource →
What owners praise
Two paralleled units give 7,680W and run dryer, 2-ton AC or oven plus fridges and sump pump.
Inverter & surgemeasuredowner5 agreedsource →
$2,600 for two units plus $659 for the Hub A1 was worth the extra over the Anker.
Price & valuemeasuredowner5 agreedsource →
Three Apex 300s with a Hub A1 give him 18kW solar input and 12kW output.
Solar inputmeasuredownerafter 1 months10 agreedsource →
Claims are weighted by how specific they are, whether the commenter owns the unit, and how many readers agreed. Comments that mention a product under a rival's review count for more, because the commenter had no reason to be there. This is what buyers report, not our test results — for measurements we ran ourselves, see the methodology.
Who Should Buy Which
Buy the DELTA Pro 3 if you…
- →You need real headroom for an unpredictable outage or a multi-day trip — the DELTA Pro 3 finishes Weekend Camping and the 8-Hour Blackout scenarios with roughly half its tank still full.
- →You have to physically move this unit and want the lighter, quieter option even though it's the pricier one.
Buy the Apex 300 if you…
- →You're optimizing for the lowest cost per year of ownership and don't plan to use the DELTA Pro 3's extra 1,331Wh — the Apex 300 is $360 a warranty-year against $640.
- →This is going into a fixed, detached spot where 45dB under load doesn't matter, and you want the stronger 2.0x surge ratio for a compressor-heavy load.
If neither fits
Van Life Daily needs 4,685Wh and both units fall short — the DELTA Pro 3 hits 135% of what's required and the Apex 300 hits 199%. Anyone planning full-time van or off-grid living should look at larger expandable configurations from either brand rather than choosing between these two base units.
The Bottom Line
The Apex 300 is the cheaper unit to own by every lifetime-cost measure the engine computes, and it has the better surge ratio for hard-starting appliances. But the DELTA Pro 3 answers with more capacity in a quieter package — 1,331Wh more energy and 15 fewer decibels, for 28.6 more pounds — and it turns that into a real headroom advantage across four of six modeled scenarios.
Buy the Apex 300 if the goal is the smallest check and the unit lives somewhere permanent. Buy the DELTA Pro 3 if you want the unit that's easier to move and leaves more capacity in reserve when the outage runs longer than planned.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the BLUETTI Apex 300 actually cheaper to own than the EcoFlow DELTA Pro 3?
Yes, by the engine's lifetime math: $0.19 per lifetime kWh and $360 per warranty-year for the Apex 300, against $0.20 and $640 for the DELTA Pro 3. The two are nearly tied on cost per kWh delivered, but the DELTA Pro 3's higher sticker price makes it the more expensive unit to hold year over year.
Which of these two weighs more?
The DELTA Pro 3, at 112.4 lbs against the Apex 300's 83.78 lbs, and it holds 1,331Wh more capacity for those pounds — roughly 36 Wh per pound against 33. The two are close on energy density; the DELTA Pro 3 is simply the bigger, heavier box.
Which one handles a fridge or AC startup better?
The Apex 300 has the stronger surge ratio: 7,680W surge against 3,840W continuous output, a 2.0x margin versus the DELTA Pro 3's 1.5x (6,000W over 4,000W). That extra headroom is a genuine advantage for hard-starting compressor loads, though it comes with a louder unit at 45dB under load.
Which one is quieter?
The DELTA Pro 3, by 15dB under load — 30dB against the Apex 300's 45dB. That's the difference between a unit you can sit near while it charges and one you'll notice from across a quiet room.
Which should I buy if I might need to expand later?
Either works — both are expandable, and neither locks you out of growing capacity later. Pick between them on today's headroom, weight, and price rather than future expansion, since that factor doesn't separate them.
Brand matchup
EcoFlow vs BLUETTI: measured across every matchup →Where to buy
EcoFlow DELTA Pro 3Pick
$2,799.00
$2,799.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
BLUETTI Apex 300
$1,499.00
$1,499.00 · direct from BLUETTI
down from $1,699 · 12% below usual
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.