Head-to-head test
EcoFlow DELTA 3 Classic vs Anker SOLIX C800 Plus
The SOLIX C800 Plus now costs $180 more than the DELTA 3 Classic, and the only thing that extra money buys is 2.7 fewer pounds to carry.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
EcoFlow
DELTA 3 Classic
3,341Power Score · Appliance Class
$469.00 list · direct from EcoFlow
Anker
SOLIX C800 Plus
2,199Power Score · Appliance Class
$649.00 list · direct from Anker
Spec deltas
The EcoFlow DELTA 3 Classic costs $469. The Anker SOLIX C800 Plus costs $649 — $180 more for 768Wh instead of 1,024Wh, 1,200W instead of 1,800W continuous, and a sealed box instead of an expansion port.
That's not a close call dressed up as one. Run down the spec sheet and the DELTA 3 Classic wins the solar input (500W to 300W), the surge ratio (double its continuous rating against a third above), the switchover speed (10ms to 20ms), and the noise rating (30dB to 45dB), and it's now the cheaper unit doing all of it. The only column where the C800 Plus comes out ahead is weight, at 24 lbs against 26.7 lbs.
The two scenarios where either unit actually wins outright, CPAP Overnight and a Tailgate Party, both go to the DELTA 3 Classic, and the other four beat both units regardless of brand. Buy on the assumption that $649 gets you something the $469 unit lacks, and you'd be wrong about which one that is.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Price it per watt-hour and the direction holds: $0.46/Wh against $0.85/Wh, nearly double. This isn't sticker price versus quality trading off against each other. The DELTA 3 Classic wins both reads of value at once.
DELTA 3 Classic: $469 for 1,024WhSOLIX C800 Plus: $649 for 768Wh
Why it mattersAnyone assuming the pricier box must be the better one has the labels backwards; on this page, cheaper and bigger are the same unit.
continuous output
One reviewer confirmed the DELTA 3 Classic's 1,800W inverter handles a small window AC's startup surge without tripping, even though sustained runtime at that load runs shortA10, exactly the surge-headroom advantage the ratio predicts.
DELTA 3 Classic surges to 3,600W on 1,800W continuous (2.0x)SOLIX C800 Plus surges to 1,600W on 1,200W continuous (about 1.33x)
Why it mattersBuyers planning to run anything with a compressor should weigh the surge ratio, not just the continuous number; the DELTA 3 Classic has more room not to trip, and it's also the cheaper unit now.
That's exactly where a reviewer's own read on this unit lands too: 768Wh 'sits in an awkward middle ground' next to larger-capacity alternatives at a comparable priceB12.
Tailgate Party needs 670Wh: DELTA 3 Classic uses 77%, SOLIX C800 Plus needs 103%CPAP Overnight needs 320Wh: DELTA 3 Classic uses 37%, SOLIX C800 Plus uses 49%
Why it mattersAnyone whose typical hard day resembles a tailgate, a cooler, a speaker, a blender run, needs the headroom the C800 Plus doesn't have, and the unit that has it now also costs less.
An expansion battery turns the DELTA 3 Classic's near-miss into a full pass. The C800 Plus's shortfall is permanent by design, and now $180 more expensive on top of it.
DELTA 3 Classic accepts EcoFlow expansion batteries; SOLIX C800 Plus is fixed at 768Wh with no expansionRemote Workday needs 910Wh: DELTA 3 Classic sits at 105% of usable capacity, SOLIX C800 Plus at 139%
Why it mattersBuyers whose workday is borderline should know only one of these units has an actual fix available, and it's the same one that costs less to buy today.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: The price flip is the whole story here: DELTA 3 Classic now leads on sticker price and cost-per-lifetime-kWh and cost-per-warranty-year, closing the one argument the old pricing left for the C800 Plus.
cost / lifetime kWh
The DELTA 3 Classic now wins on every axis of ownership cost, not just the sticker. It's $180 cheaper to buy, works out to $0.15 per lifetime kWh against the C800 Plus's $0.28, and comes out to $94 per warranty-year against $130.
There's no longer a counter-argument buried in the cost columns. Every ownership metric on this page, purchase price, cost per lifetime kWh, cost per warranty-year, now points the same direction, and the sticker price isn't the exception anymore.
PowerScore Breakdown
Selected because: A 1,142-point power_score gap (3,341 vs 2,199) is the aggregate confirmation that this isn't close on any read of the spec sheet.
overall power score
A 1,142-point power_score gap, 3,341 against 2,199, is what happens when every underlying spec points the same direction at once: more capacity, more continuous output, a wider surge ratio, a faster switchover, and now a lower price too.
The C800 Plus isn't a broken unit in isolation. Reviewers ran a fridge and freezer through it for eight hours and it used just 10% of its chargeB6, and testers came away impressed with it on its own termsB13. It just loses every direct comparison to the unit sitting next to it on this page.
Your Life, Your Pick
Selected because: The only two scenarios with a declared winner both go to the DELTA 3 Classic, one by a hard capacity failure on the C800 Plus (103% of usable capacity needed).
Four of six scenarios beat both units outright. Weekend Camping, the 8-Hour Blackout, Remote Workday, and Van Life Daily all ask for more than either can hold, so picking either one for those jobs means buying the wrong class of unit, not the wrong brand.
The two scenarios that do get decided both go to the DELTA 3 Classic. CPAP Overnight is a soft win: both units handle it fine, the DELTA 3 Classic just finishes with more headroom (37% used against 49%). Tailgate Party is a hard win: the C800 Plus needs 103% of its usable capacity to cover it, which means it doesn't cover it. The DELTA 3 Classic gets through the same afternoon at 77%.
Growth Path
Selected because: Expansion access is a permanent structural gap, and it now sits on the side of the cheaper unit too, including a near-miss on Remote Workday the DELTA 3 Classic can close with an add-on and the C800 Plus can't.
solar input
The DELTA 3 Classic accepts EcoFlow expansion batteries; the C800 Plus is a sealed 768Wh box for the life of ownership. That gap shows up concretely on Remote Workday: the DELTA 3 Classic falls just short at 105% of usable capacity, a gap an expansion battery closes outright, while the C800 Plus sits 39 points further back with no port to close it at all.
If there's any real chance your power needs grow, more gear, longer trips, a partial home-backup setup down the line, that asymmetry now comes with no price penalty attached. The unit that can grow is also the one that costs less today.
Strengths & trade-offs
EcoFlow DELTA 3 Classic
Strengths
- +Costs $180 less
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –No major technical downsides compared to rival.
Anker SOLIX C800 Plus
Strengths
- +Lighter by 2.7 lb
Trade-offs
- –Substantially more expensive (+$180) than the DELTA 3 Classic.
- –Weaker inverter (-600W) limits appliance compatibility.
- –Sealed capacity — the DELTA 3 Classic can add batteries to grow past 768Wh; this one can't.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.
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
Neither unit
Neither unit can fully handle this scenario (needs 1,645Wh). You'd need a higher-capacity station or to cut back on usage.
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 3 Classic
Both handle a CPAP overnight easily, using well under half their usable capacity. The DELTA 3 Classic finishes with a little more room to spare, 37% used against 49%, a soft win and not a reason by itself to pick one over the other if this is the only job you need it for.
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
Neither unit
Neither unit can fully handle this scenario (needs 910Wh). You'd need a higher-capacity station or to cut back on usage.
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
DELTA 3 Classic
This is the scenario that actually separates them. The DELTA 3 Classic covers a tailgate afternoon at 77% of usable capacity; the C800 Plus needs 103%, over what it has. Add a blender run or a bigger speaker and the C800 Plus is the one packing up early.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither unit can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ LOAD
None of the six scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: DELTA 3 Classic runs 4.2h vs 3.2h.
$469 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 0–58hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–11.6hHigh-Draw Appliances
These reveal the real limitsscale 0–0.9h¹ 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 26, 2026
Verdict: the DELTA 3 Classic
The DELTA 3 Classic wins every meaningful spec but one, and it does it while costing $180 less, not more. It holds 1,024Wh to the C800 Plus's 768Wh (a clean 4:3 ratio), outputs 1,800W continuous against 1,200W, surges to double its rating where the C800 Plus climbs about a third above its own, and costs $0.15 per lifetime kWh against $0.28. It also takes both scenarios where the two units actually differ, CPAP Overnight and Tailgate Party, the second by a hard capacity failure on the C800 Plus's side (103% of usable capacity needed, which it doesn't have). There's no longer a lifetime-cost or warranty-value argument for the Anker either: $94 per warranty-year against $130. The only honest reason to buy the C800 Plus today is if 2.7 lbs of trunk weight is the deciding factor for you.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 26, 2026. The links below open EcoFlow's and Anker's current prices.
$469.00 list · direct from EcoFlow
or check the SOLIX C800 Plus price$649.00 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated July 26, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living, Home Backup, Food Truck.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, DELTA 3 Classic rates 4.9/5 (91st percentile of 24 Everyday-class units), and SOLIX C800 Plus rates 4.0/5 (39th percentile of 19 Compact-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.
30dB Against 45dB, and the Quieter One Costs Less
The DELTA 3 Classic is rated 15dB below the C800 Plus, whose fan turns clearly audible once load and ambient heat both climb. If this is sharing a room with you overnight, that gap is worth more than most specs on the page, and it doesn't cost extra to get it.
The Cheaper Unit Is Also the One That Grows
The C800 Plus is sealed at 768Wh for good: no port, no add-on pack, no path past what shipped in the box. The DELTA 3 Classic accepts EcoFlow's expansion batteries, so a unit that already costs $180 less can also grow past today's ceiling if your needs do.
Inverter Headroom for the Moment a Compressor Kicks On
The DELTA 3 Classic surges to double its continuous rating, 3,600W on 1,800W. The C800 Plus surges to about a third above its own, 1,600W on 1,200W. Fridges and window units draw 2-3x their running wattage for the first second or two, so the unit with more headroom above its continuous number is the one less likely to trip.
Switchover Speed: 10ms Against 20ms
The DELTA 3 Classic's line-interactive switchover reacts in under 10ms; the C800 Plus's standby design takes under 20ms. Both are fast enough for most electronics, but anything sensitive to a blip, a desktop PC, some medical gear, favors the faster one.
Same Warranty Length, Very Different Price Per Year
Both units carry a 5-year warranty, so the length is a wash. The price behind it isn't: $469 works out to $94 a warranty-year, while $649 works out to $130. The DELTA 3 Classic is the cheaper unit to insure for the same five years, not just the cheaper unit to buy.
Full record above — the Test Desk pick is the DELTA 3 Classic.
Check DELTA 3 Classic price →or check the SOLIX C800 Plus priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The DELTA 3 Classic wins on both sticker price and long-term value. At $0.15/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $0.13 less — check the DELTA 3 Classic price →
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. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.
Worth knowing
The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.
Community
Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android
Unique strength
Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units — the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.
Worth knowing
Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.
Analyst note
EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while Anker competes on value. The question is whether the EcoFlow ecosystem and support premium is worth it for your use case.
Growth path
DELTA 3 Classic
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,024Wh.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
SOLIX C800 Plus
FIXED CAPACITYFixed at 768Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 300W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
The SOLIX C800 Plus is sealed at 768Wh, which is fine if that covers you. The DELTA 3 Classic starts at 1,024Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the SOLIX C800 Plus doesn't have if your needs climb toward partial-home backup.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 Classic
The DELTA 3 Classic launched in March 2026, so there's no long-term ownership history yet, just early hands-on reviews. What's consistent across them: it charged from empty to full on a wall outlet in just under 55 minutesA1, idle draw measured around 17WA2, and reviewers who expected loud fans given the price point were surprised to find it stayed quiet insteadA3.
The recurring knock is the 500W solar input cap, flagged by more than one outlet as low for a 2026-era releaseA5A9, though it's still well above the C800 Plus's own 300W ceiling. The Storm Guard auto-charge feature drew specific praise as genuinely useful, not just a checkboxA12, and one owner reported losing 5-10% of charge per month sitting idleA14, worth knowing if this ends up living in a garage most of the year.
“In our tests, the DELTA 3 Classic charged from empty to full plugged into a standard wall outlet in just shy of 55 minutes.”
Sources
thesolarlab.com · vantour.net · smartenergyedge.com · walmart.com
Anker SOLIX C800 Plus
Fan noise is the C800 Plus's most consistent knock: once ambient temperature climbed above 80°F running roughly 1,030W average, reviewers described the fan as unavoidable in a quiet roomB1. The companion app fared better; testers who'd never had one on a power station before said they came to rely on it after the first tripB7, and firmware updates deliver cleanly through itB15.
Capacity is the other recurring concern. One reviewer called sufficiency their lone worry running it day-to-dayB5, and another described 768Wh as an 'awkward middle ground' next to larger-capacity alternatives at a comparable priceB12, a description that applies just as well to the DELTA 3 Classic sitting next to it on this page, now that the price gap runs the other direction.
“The pole light felt is a little over the top and unnecessary.”
Sources
dustinabbott.net
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Multiple independent reviewers note the unit is quieter than expected for its price point, with low idle drain. [DELTA 3 Classic · 2 entries]
- The 500W solar input cap is flagged as a limiting factor by more than one review outlet, seen as low for a 2026-era release. [DELTA 3 Classic · 2 entries]
- Reviewers praise the app and Storm Guard/smart features as standout software elements. [DELTA 3 Classic · 2 entries]
- Fan noise is consistently reported as noticeable during fast AC charging or high sustained wattage, though most reviewers call it 'manageable' rather than a dealbreaker. [SOLIX C800 Plus · 2 entries]
- The companion app is repeatedly praised for remote monitoring/control and firmware delivery, with no reviewers reporting connectivity or crash complaints. [SOLIX C800 Plus · 3 entries]
- 768Wh capacity is flagged by multiple reviewers as the unit's main limitation for heavy appliances and against same-price competitors, even though real-world light loads (fridge, gadgets) performed well. [SOLIX C800 Plus · 4 entries]
- The signature 'Plus' camping-light pole/torches are polarizing: some reviewers call the feature genuinely useful and a lantern-replacement, others call it an unnecessary gimmick that sacrifices the C800's cable-storage cubby. [SOLIX C800 Plus · 3 entries]
- A1
“In our tests, the DELTA 3 Classic charged from empty to full plugged into a standard wall outlet in just shy of 55 minutes.”
thesolarlab.com — EcoFlow DELTA 3 Classic Review: Cheap, Quiet & Useful? · unknown (post-launch 2026) · [positive]
- A2
“We measured the idle draw to be roughly 17W per hour.”
thesolarlab.com — EcoFlow DELTA 3 Classic Review: Cheap, Quiet & Useful? · unknown (post-launch 2026) · [positive]
- A3
“we expected the cooling fans to break that trend given the price point for this unit”
thesolarlab.com — EcoFlow DELTA 3 Classic Review: Cheap, Quiet & Useful? · unknown (post-launch 2026) · [positive]
- A5
“the screen only showed 500 W input”
vantour.net — EcoFlow Delta 3 Classic: Our review, test and promo code · 3 weeks ago (~June 2026) · [negative]
- A9
“EcoFlow pushes the fast charging hard, but the DELTA 3 Classic is capped at 500W solar input”
smartenergyedge.com — EcoFlow DELTA 3 Classic Review: Better Than the DELTA 2? · 1 week ago (~July 2026) · [negative]
- A10
“The 1,800W inverter handles the startup surge of a small window AC unit just fine, but the runtime is short.”
smartenergyedge.com — EcoFlow DELTA 3 Classic Review: Better Than the DELTA 2? · 1 week ago (~July 2026) · [mixed]
- A12
“The Storm Guard auto-charge feature is smart and genuinely useful.”
smartenergyedge.com — EcoFlow DELTA 3 Classic Review: Better Than the DELTA 2? · 1 week ago (~July 2026) · [positive]
- A14
“Loses about 5-10% charge per month when not in use.”
walmart.com — Customer reviews for EF EcoFlow DELTA 3 Classical 1000 (aggregated pros/cons summary) · unknown · [negative]
- B1
“Once the temperature rose above 80F with a 1,030 average wattage, the fan noise was unavoidable and quite present in a quiet house.”
How-To Geek — 'Anker Solix C800 Plus Review: A Power Station Prepared to Illuminate Nighttime' · 2024-03 · [negative]
- B5
“My lone concern on this front is whether or not the battery capacity is sufficient.”
DustinAbbott.net — 'Anker Solix C800 Plus Power Station Review' · 2024-03 · [mixed]
- B6
“I connected the Anker and in 8 hours, my frig/freezer used 10% of the power.”
The Gadgeteer — 'Anker SOLIX C800 Plus power station review' · 2024-04 · [positive]
- B7
“My other power stations do not have a companion phone app. But after the first trip, I saw how this feature would come in handy.”
The Gadgeteer — 'Anker SOLIX C800 Plus power station review' · 2024-04 · [positive]
- B12
“The 768Wh capacity sits in an awkward middle ground. It is significantly less than the 1,024Wh offered by the EcoFlow DELTA 3 Plus at the same $649 price.”
The Power Pick — 'Anker SOLIX C800 Plus Review: Camping Lights Meet Serious Power' · 2026-02 · [negative]
- B13
“I've come away from my time with the Anker SOLIX C800 Plus extremely impressed.”
AndroidGuys — 'Anker SOLIX C800 Plus Power Station Review' · 2024-05 · [positive]
- B15
“Through the app, you can easily install firmware updates that may include performance enhancements, bug fixes, or new functionalities.”
Greener Ideal — 'Anker SOLIX C800 Plus Portable Power Station Review' · 2024-08 · [positive]
Research compiled July 26, 2026.
Who Should Buy Which
Buy the DELTA 3 Classic if you…
- →You want the bigger tank, the wider surge headroom, and a real path to more capacity later, and none of that costs you extra anymore. The DELTA 3 Classic is also the cheaper unit today.
- →Your hardest real day looks like a tailgate setup or anything with a compressor. The surge ratio and the extra 256Wh of headroom matter in exactly those moments.
Buy the SOLIX C800 Plus if you…
- →2.7 lbs of trunk or backpack weight is a genuine deciding factor for you. The C800 Plus is the lighter unit, full stop.
- →That's close to the whole case left for it. Every other column on this page, including price, now runs the other way.
If neither fits
If your real day looks like a full remote workday (about 910Wh), a two-night camping trip (about 2,100Wh), an 8-hour multi-appliance blackout (about 1,645Wh), or full-time van life (about 4,685Wh), both of these fail it. The DELTA 3 Classic needs anywhere from 105% to 538% of its usable capacity across those four jobs, and the C800 Plus needs more in every one. Look at a larger-capacity class of unit instead of choosing between these two.
The Bottom Line
The DELTA 3 Classic wins on capacity, output, surge headroom, switchover speed, noise, and expansion, and it now does it for $180 less than the C800 Plus, not more. The one column where the C800 Plus comes out ahead is weight, by 2.7 lbs.
For a tailgate, a compressor, or anything you expect to still own in three years, the DELTA 3 Classic is the buy, and the price no longer asks you to pay extra for it. Pick the C800 Plus only if 2.7 lbs is worth more to you than everything else on this page, including $180.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Which is cheaper, the EcoFlow DELTA 3 Classic or the Anker SOLIX C800 Plus?
The DELTA 3 Classic, by $180: $469 against $649. It's also the larger unit at 1,024Wh to the C800 Plus's 768Wh, so the lower price isn't buying less. It's buying a third more capacity too.
Is there any real reason to buy the SOLIX C800 Plus over the DELTA 3 Classic?
Only one that holds up: weight. The C800 Plus is 24 lbs against the DELTA 3 Classic's 26.7 lbs, a 2.7 lb difference. On every other spec, capacity, output, surge ratio, switchover speed, noise, expansion, and now price, the DELTA 3 Classic is ahead.
Which one is quieter?
The DELTA 3 Classic, by 15dB, rated at 30dB against the C800 Plus's 45dB. Reviewers who expected the DELTA 3 Classic's fans to be loud given its price were surprised to find it stayed quiet, while the C800 Plus's fan becomes clearly audible in a quiet room once temperature and load both climb.
Can either of these handle a tailgate party or a full camping weekend?
The tailgate, only the DELTA 3 Classic can. It uses 77% of usable capacity where the C800 Plus needs 103%, more than it has. Neither unit is sized for a full two-night camping trip; both would need more than double their usable capacity to cover roughly 2,100Wh of typical draw.
Does the Anker SOLIX C800 Plus support battery expansion?
No. It's sealed at 768Wh for the life of ownership; outgrow it and the only option is a second unit. The DELTA 3 Classic accepts EcoFlow expansion batteries, so its ceiling can rise later, and it's the cheaper unit even before you factor that in.
Where to buy
EcoFlow DELTA 3 ClassicPick
$469.00
$469.00 list · direct from EcoFlow
Anker SOLIX C800 Plus
$649.00
$649.00 list · direct from Anker
Prices may vary by retailer and are subject to change.