Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- A-iPower SUA4300i
- WEN GN400iX
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | A-iPower SUA4300i | WEN GN400iX |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | Yes |
| Running watts | 3450 W | Winner: Winner: 3500 W |
| Starting watts | Winner: Winner: 4300 W | 4000 W |
| Noise (lower limit) | Winner: Winner: 62 dB | 67 dB |
| Weight | Winner: Winner: 52.9 lbs | 70 lbs |
| Run time @50% load | Not available | Winner: Winner: 7 h |
| Run time @25% load | 7.5 h | Not available |
| Fuel tank | 1.6 gal | 1.85 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 22 x 14.4 x 20.3 in | 19.8 x 13.8 x 18.9 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 12 | 5 |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 1.2 % |
| Engine | ||
| Engine | 149 cc OHV 4-stroke | 212 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3450 W | 3500 W |
| Starting watts | 4300 W | 4000 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | Not available | 7 h |
| Run time @25% load | 7.5 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Floating |
| UPC | 850016881847 | 44459014003 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3450 | 3500 |
| Starting Watts (Gasoline) | 4300 | 4000 |
| Runtime @ 50% Load (Gasoline) | Not available | 7 |
| Runtime @ 25% Load (Gasoline) | 7.5 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 149 | 212 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 7.5 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 7 |
| Controls & display | ||
| Display Type | Digital | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | No | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, RV adapter, and battery charging cables | Not available |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Additional specs | ||
| Summary | The A-iPower SUA4300i is a 3,450-watt inverter generator built for users who need portable backup power without sacrificing portability. At 52.9 lbs, this gasoline-powered unit bridges the gap between job site tools and home emergency backup. The 4,300-watt peak output handles starting surges on refrigerators, air compressors, and power tools, while the 3,450-watt running capacity sustains them once they spin up.
With a 1.6-gallon fuel tank, the SUA4300i runs 7.5 hours at 25 percent load, meaning a full tank covers a full workday or overnight outage without refueling. The recoil start system is simple and reliable, though it requires manual pulling. At 62 dB, the noise level sits at normal conversation volume, making it acceptable for residential neighborhoods and campgrounds where quieter operation matters. | The WEN GN400iX is a 4000-watt open frame inverter generator designed to provide clean and quiet portable power, suitable for operating sensitive electronics and RVs. |
- Most PowerfulWEN GN400iX3500W running
- QuietestA-iPower SUA4300i62 dB
- Longest RuntimeWEN GN400iX7h at 50% load
Where to buy
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A-iPower SUA4300i
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WEN GN400iX
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