Head-to-head test
EcoFlow DELTA 3 vs Goal Zero Yeti 300
Real-world runtimes, scenario verdicts, and ownership costs compared — which wins for your use case.
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
EcoFlow
DELTA 3
3,196Power Score · Appliance Class
$549.00 list · direct from EcoFlow
Goal Zero
Yeti 300
1,602Power Score · Device Hub
$349.95 list · direct from Goal Zero
Spec deltas
The EcoFlow DELTA 3 (1,024Wh) and Goal Zero Yeti 300 (297Wh) sit in different weight classes. The real question: do your power needs justify the larger unit, or would you be overpaying for capacity that sits unused? The DELTA 3 has a slight edge, but the margin is close enough that your use case should break the tie.
What the spec gap means in practice: the DELTA 3's 1,800W inverter has the headroom for a window AC, a full-size fridge, and power tools. The Yeti 300's 350W inverter can't start the heaviest of those — a window AC or a high-surge power tool will trip it. On stamina, the DELTA 3 keeps a fridge alive for roughly 6 hours vs the Yeti 300's 2 hours.
Pick the DELTA 3 if your primary use is cpap overnight or tailgate party. Go with the Yeti 300 if its specific strengths below line up better with your use. Most buyers stop at the sticker price and miss this: over a full lifespan the DELTA 3 works out to about $0.18/kWh against the Yeti 300's $0.29, a gap that compounds in the DELTA 3's favor the more you cycle it. Keep scrolling for the full breakdown. The scenario verdicts below hold a few surprises.
Bench Notes
What each unit does well, where it falls short, and the trade-offs that matter.
EcoFlow DELTA 3
The 1,800W inverter handles most daily devices like laptops, blenders, and TVs, but will struggle with heating elements that require over 1500W. A standout feature is the value proposition: at roughly $0.54 per watt-hour, it's one of the most cost-effective options on the market.
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$199.1) than the Yeti 300.
- –Significantly heavier (+13.3 lbs), making it harder to move.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Yeti 300's 4,000, so it wears out sooner.
Goal Zero Yeti 300
At 350W, this unit is strictly for personal electronics (phones, laptops) and small CPAP machines. Do not expect to run kitchen appliances. At only 13.7 lbs, it is exceptionally portable. You can easily carry it one-handed to a campsite or tailgating party.
Strengths
- +Costs $199.1 less
- +Lighter by 13.3 lb
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Weaker inverter (-1,450W) limits appliance compatibility.
- –Sealed capacity — the DELTA 3 can add batteries to grow past 297Wh; 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
The Yeti 300 runs out of juice. It only has 252Wh usable, but this scenario needs 320Wh. The DELTA 3 covers it and still has 37h of phone charging left over.
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
The Yeti 300's 350W output can't handle the 400W peak demand. The DELTA 3 handles this scenario with 200Wh to spare.
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 runs 4.2h vs 1.2h.
$549 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 10, 2026
Verdict: the DELTA 3, on Power Score margin
These two units are closely matched on individual specs, but our Power Score analysis gives the DELTA 3 the edge with a composite score of 3,196 vs 1,602.
Overall score margin: 3,196 vs 1,602 (+99.5%)
List prices as of July 10, 2026. The links below open EcoFlow's and Goal Zero's current prices.
$549.00 list · direct from EcoFlow
or check the Yeti 300 price$349.95 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 10, 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.
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 rates 4.3/5 (61st percentile of 24 Everyday-class units), and Yeti 300 rates 4.0/5 (43rd percentile of 22 Personal-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.
Yeti 300: Fixed Capacity
The Yeti 300 is sealed at 297Wh — fine if that covers you, but it's the ceiling. The DELTA 3 starts at 1,024Wh and can add expansion batteries, so if your needs may climb toward partial-home backup, it has room to grow the Yeti 300 doesn't.
Warranty Value Comparison
The Yeti 300 gives you 14.3 years of warranty per $1,000 spent, vs the DELTA 3's 9.1 years. That's 1.6× more coverage per dollar. An underrated factor if you're keeping this unit for years.
Battery Lifespan in Real Years
The Yeti 300 is rated for 4,000 cycles vs 3,000. In real life: at daily use, that's 11 vs 8.2 years. At weekend use (twice a week), it's 38 vs 29 years. After hitting the cycle limit, the battery doesn't die. It drops to ~80% original capacity, which is still very usable.
Yeti 300: Noise Level Not Disclosed
The DELTA 3 publishes its noise level (30dB), but the Yeti 300 doesn't. Brands that don't disclose noise specs often have louder units. If noise matters to you (CPAP users, apartment dwellers), this is worth investigating before buying.
Full record above — the Test Desk pick is the DELTA 3.
Check DELTA 3 price →or check the Yeti 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 Yeti 300 is cheaper to buy, but the DELTA 3 is cheaper to own. At $0.18/kWh over its lifetime vs $0.29/kWh, the DELTA 3's higher cycle life and capacity make each dollar go further over the years.
Delivers each lifetime kWh for $0.11 less — check the DELTA 3 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.
Goal Zero
Ecosystem
Focused — 5-6 active portable power station models across Yeti and Yeti Pro series, plus Alta coolers, Nomad/Ranger solar panels, and vehicle integration kits
Support
US-based company (Salt Lake City, owned by NRG Energy). Historically considered premium support, but 2025-2026 reports describe long wait times, unresponsive email communication, and tickets going unaddressed for weeks. The "premium support justifies premium pricing" argument is weakening.
Community
Small but loyal — strong following in overlanding and preparedness communities. Official community forums were recently shuttered, frustrating long-time users.
App experience
Rated 4.4/5 iOS (~1,200 ratings) but recent reviews skew negative — recurring connectivity issues, crashes, and stability problems.
Unique strength
Pioneer of the portable power market — strongest brand heritage. US-based company with ruggedized, weather-resistant designs (IPX4). Integrated "Yeti-Ready" ecosystem with coolers, lights, and vehicle kits.
Worth knowing
Widely acknowledged as the most expensive brand (lowest Wh per dollar). Support quality has declined from its "premium" standard. Perceived as competitively stagnant vs. faster-innovating Chinese competitors. Reliability reports on newer models are concerning.
Analyst note
EcoFlow and Goal Zero are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.
Growth path
DELTA 3
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.
Yeti 300
FIXED CAPACITYFixed at 297Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 200W 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 Yeti 300 is sealed at 297Wh, which is fine if that covers you. The DELTA 3 starts at 1,024Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Yeti 300 doesn't have if your needs climb toward partial-home backup.
The Bottom Line
The full picture comes down to this. The DELTA 3 edges ahead on our overall analysis, but the margin is narrow enough that your specific use case should drive the decision. Review the scenario verdicts above — if the Yeti 300 wins in the scenarios that match your life, it's the right choice regardless of aggregate scores.
If neither the DELTA 3 nor the Yeti 300 feels like the right fit, your power needs probably sit outside what these two target. If you're planning whole-home backup or running power-hungry appliances (electric heaters, window AC), you'll want a larger system in the 3,000–5,000Wh range with expansion battery support. Prices on portable power stations fluctuate frequently. Both EcoFlow and Goal Zero discount regularly, so check the current price before committing. Prime Day and Black Friday pricing typically drops 20-30%.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA 3 worth $199.1 more than the Yeti 300?
The short answer: yes, if you'll actually use the extra capability. The DELTA 3 costs $199.1 more, but that premium buys you 727Wh more battery capacity (that's 4 extra hours of running a mini-fridge); 1,450W higher AC output (opening the door to more demanding appliances); 300W faster solar charging for quicker off-grid recovery. On a cost-per-watt-hour basis, you're paying $0.54/Wh vs $1.18/Wh. Factor in cycle life and the math flips: the DELTA 3 costs $0.18/kWh over its lifetime vs $0.29/kWh. The "expensive" unit is actually cheaper to own. For regular use, we'd pay the premium.
How does the 727Wh capacity difference actually affect daily use?
The DELTA 3's 1,024Wh battery keeps a mini-fridge running for roughly 6 hours vs the Yeti 300's 2 hours. What specs don't mention: runtime drops 20-30% in cold weather (below 32°F/0°C) as battery chemistry slows down. The DELTA 3's extra capacity provides a critical cold-weather buffer. For occasional phone and laptop charging, both are overkill. This gap only matters for sustained, multi-appliance use.
Can I actually carry the DELTA 3, or is the Yeti 300 the only portable option?
The Yeti 300 at 13.7 lbs is genuinely grab-and-go. Toss it in a backpack, carry it one-handed to a picnic, take it on a boat. The DELTA 3 at 27 lbs is a different story. It's like carrying a large suitcase full of books. If you're setting up and breaking down camp frequently, this weight difference will exhaust you by day two.
How fast can each unit recharge from solar panels in real conditions?
On paper, the DELTA 3 accepts 500W vs the Yeti 300's 200W of solar input. What the spec sheet won't tell you: solar panels typically deliver only 60-80% of their rated output due to panel angle, cloud cover, and temperature. In realistic conditions, expect full recharge in about 2.9 hours for the DELTA 3 and 2.1 hours for the Yeti 300. That gap widens on cloudy days, when the DELTA 3's higher input ceiling captures more of whatever sunlight is available. One more thing: summer gives you ~7 productive solar hours per day. Winter drops to ~4. If solar is your primary recharge method, the DELTA 3's advantage is substantial.
"4,000 vs 3,000 cycles" — what does that actually mean for me?
In real years: the Yeti 300 (4,000 cycles) lasts 11.0 years at daily use, 38 years at weekend use (twice a week), or 167 years at twice-monthly camping trips. The DELTA 3 (3,000 cycles): 8.2 years daily, 29 years weekends, or 125 years twice-monthly. What most people miss: hitting the cycle limit doesn't kill your battery. Capacity drops to about 80%. Your 297Wh unit becomes a ~238Wh unit. Still very usable. For weekend users, both batteries will outlast the warranty by years.
What if I need more capacity than the Yeti 300's 297Wh later?
The Yeti 300 is sealed at 297Wh, so if you expect your needs to climb, the DELTA 3 is the more future-proof pick: it starts at 1,024Wh and adds EcoFlow-compatible batteries without replacing the base unit. That said, "not expandable" isn't a flaw on its own — if 297Wh comfortably covers your loads, the Yeti 300 is a complete unit, not a downgrade.
Is EcoFlow or Goal Zero more reliable for long-term ownership?
Both brands have strengths and trade-offs. EcoFlow: Mixed. 2-5 years depending on model (DELTA Pro Ultra line gets 10 years). Some users report smooth claims; others report runarounds. Register your product to extend coverage. Goal Zero: 5 years on LFP models, 2 years on older NMC models. Battery must be charged within 7 days of purchase and every 6 months to maintain warranty (strict). Product reliability concerns have increased — repeat "Battery Fault" errors reported even on newer Yeti Pro 4000. One piece of advice from the power station community: regardless of brand, buy from Costco or Amazon. Their return policies provide a safety net that manufacturer warranties alone can't match, especially for a product you'll rely on in emergencies. Both brands use LFP (lithium iron phosphate) batteries in their current lineup, the most proven chemistry for longevity and safety.
Bottom line: should I buy the DELTA 3 or the Yeti 300?
We'd pay the premium for the DELTA 3. Yes, it costs more. The capability jump is real: you're stepping into a tier that handles appliances the base model can't start. The Yeti 300 is still solid if budget is the priority, but the DELTA 3 will leave you less likely to wish you'd "gone bigger" six months from now. That regret costs more than the price difference.
Where to buy
EcoFlow DELTA 3Pick
$549.00
$549.00 list · direct from EcoFlow
Goal Zero Yeti 300
$349.95
$349.95 list · direct from Goal Zero
Prices may vary by retailer and are subject to change.