The difference that matters
The WEN GN400iX RV-Ready 4000-Watt Open Frame Inverter Generator is listed $85 lower.
Side by side
| Specification | A-iPower 3800W Portable Inverter Generator With CO Alert - SUA3800iP | WEN GN400iX RV-Ready 4000-Watt Open Frame Inverter Generator |
|---|---|---|
| Brand | A-iPower | WEN |
| Running watts | 3,500 W | 3,500 W |
| Starting watts | 3,800 W | 4,000 W |
| Fuel types | Gasoline | Gasoline |
| Fuel tank (gasoline) | 2.6 gal | — |
| Runtime (as stated) | up to 12 h | — |
| Noise (as stated) | 62 dB | — |
| Weight | 121 lb | — |
| Starting system | Recoil Start | — |
| Inverter | Yes | Yes |
| Carbon monoxide shutoff | Listed | Listed |
| Parallel capable | Yes | — |
| Warranty | 3 Year Limited Warranty | — |
| Household appliances it can run by watts (calc) | 19 of 20 | 19 of 20 |
| Price per running watt (calc) | $0.19 | $0.17 |
| Price seen | $670 | $585 |
| Sellers | 1 | 1 |
Highlighted rows differ. Figures come from each product's sources; runtime, recharge and cost rows are Wattstanding calculations using the same method for both.
Which should you choose?
A-iPower 3800W Portable Inverter Generator With CO Alert - SUA3800iP
Choose the A-iPower 3800W Portable Inverter Generator With CO Alert - SUA3800iP if you prefer its maker, seller or ecosystem — the published figures do not favour it.
WEN GN400iX RV-Ready 4000-Watt Open Frame Inverter Generator
Choose the WEN GN400iX RV-Ready 4000-Watt Open Frame Inverter Generator if price decides it.
Before you buy either
- Total your loads with the appliance load & runtime calculator.
- Confirm what each seller includes — accessories, software trials and bundles change often.
- Read the limitations on each full reference page.
Wattstanding compares published specifications; we have not tested these products side by side. How we work · Disclosure