EcoFlow DELTA 3 Plus vs OUPES Mega 1

Winner EcoFlow DELTA 3 Plus has the higher overall owner score (3.8) in our data.

EcoFlow DELTA 3 PlusOUPES Mega 1
Overall3.83.7
Owner sentiment3.94.1
Recommendations3.62.1
Value3.74.1
Owner comments167
Price snapshot$719.00 (price as of 2026-11-07)$529.00 (price as of 2026-11-07)

Specs (shared fields)

EcoFlow DELTA 3 PlusOUPES Mega 1
Wattage1800 watts1024 watt-hours
Fuel TypeElectricElectric
Power SourceSolar PoweredBattery Powered
Recommended Uses For ProductCampingCamping & road trips, Home backup, Off-grid power, Power outages & emergencies
Voltage120 volts_of_alternating_current120 volts_of_alternating_current
Output Wattage18002000
Additional FeaturesPortable0-80% Charge in 36 Mins, <20ms UPS, Expand Capacity to Huge 5kWh, Smart APP Control, Supports By-pass Charging
Engine TypeElectric4 Stroke
Ignition System Typeelectric startelectric start
Engine Displacement79 cubic centimeters79 cubic centimeters
Total Power Outlets134
Current Rating30 A10 A

Where owner praise diverges

Owners praise the EcoFlow DELTA 3 Plus more for ups backup, and the OUPES Mega 1 more for reliability.

Check EcoFlow price on Amazon Check OUPES price on Amazon

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EcoFlow DELTA 3 Plus review · OUPES Mega 1 review