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| Specification | Genmax GM3500Xi | Sportsman GEN4000iOF |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | Yes |
| Running watts | 3200 W | Winner: Winner: 3500 W |
| Starting watts | 3500 W | Winner: Winner: 3850 W |
| Noise (lower limit) | 66 dB | Winner: Winner: 65 dB |
| Weight | Winner: Winner: 57.3 lbs | 93 lbs |
| Run time @50% load | 8.5 h | Winner: Winner: 10 h |
| Run time @25% load | 13.5 h | Not available |
| Fuel tank | 2.24 gal | 4.5 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 18.9 x 13.6 x 17.7 | 23 x 17.5 x 20.3 |
| Electrical | ||
| Voltage (AC) | 120V 60 Hz | 120 |
| Voltage (DC) | 5 | 5 |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | ≤3% % | 5 % |
| Engine | ||
| Engine | Dinking OHV 4-stroke | 223 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 1 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3200 W | 3500 W |
| Starting watts | 3500 W | 3850 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 | 8.5 h | 10 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Not available |
| UPC | 713424639045 | 27077805437 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3200 | 3500 |
| Starting Watts (Gasoline) | 3500 | 3850 |
| Runtime @ 50% Load (Gasoline) | 8.5 | 10 |
| 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 | Dinking OHV 4-stroke | 223 cc OHV 4-stroke |
| Engine Displacement | 145 | 223 |
| Engine Oil Type | SAE 10W/30 | SAE 10W30 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 8.5 | 10 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Included Accessories | Funnel and tool kit | Tool kit |
| Additional specs | ||
| Summary | The Genmax GM3500Xi is a 3,200-watt inverter generator built for homeowners, campers, and job site work. Its 3,500-watt peak output handles essential appliances and power tools, while the inverter technology keeps sensitive electronics safe. At 57.3 pounds, it moves easily between locations. | The Sportsman GEN4000iOF is a gasoline-powered inverter generator delivering 3,850 surge watts and 3,500 running watts, suitable for powering sensitive electronics with its clean sine wave output. |
