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.
- Genmax GM5500XiD
- Sportsman GEN4000DF
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 | Genmax GM5500XiD | Sportsman GEN4000DF |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | Yes | Yes |
| Running watts | Winner: Winner: 4000 W | 3500 W |
| Starting watts | Winner: Winner: 5500 W | 4000 W |
| Noise (lower limit) | Winner: Winner: 68 dB | 69 dB |
| Weight | Winner: Winner: 68 lbs | 90 lbs |
| Run time @50% load | Not available | Winner: Winner: 10 h |
| Run time @25% load | 11 h | Not available |
| Fuel tank | 2.2 gal | 3.6 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 23.1 x 18.5 x 17.8 | 24.5 x 17 x 16.5 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | 12 |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | ≤3% % | Not available |
| Engine | ||
| Engine | 160 cc OHV 4-stroke engine. | 212 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 | 4000 W | 3500 W |
| Starting watts | 5500 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 | 8 h | 10 h |
| Run time @25% load | 11 h | Not available |
| Propane | Not available | Not available |
| Running watts | 3600 W | 3100 W |
| Starting watts | 4950 W | 3600 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 | 12.5 h | 12 h |
| Run time @25% load | 17.5 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Not available |
| UPC | 860013299040 | 27077801323 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 4000 | 3500 |
| Running Watts (Propane) | 3600 | 3100 |
| Starting Watts (Gasoline) | 5500 | 4000 |
| Starting Watts (Propane) | 4950 | 3600 |
| Runtime @ 50% Load (Gasoline) | 8 | 10 |
| Runtime @ 50% Load (Propane) | 12.5 | 12 |
| Runtime @ 25% Load (Gasoline) | 11 | Not available |
| Runtime @ 25% Load (Propane) | 17.5 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke engine | OHV 4-stroke |
| Engine Displacement | 160 | 212 |
| Engine Oil Type | SAE 10W/30 | SAE10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 11 | Not available |
| Runtime @ 50% Load (Gasoline) | 8 | 10 |
| Runtime @ 50% Load (Propane) | 12.5 | 12 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | No | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, propane hose, and wheel kit | Funnel, tool kit, propane hose, and battery charging cables |
| Additional specs | ||
| Summary | The Genmax GM5500XiD is a 4000-watt dual-fuel inverter generator that handles essential household loads, power tools, and RV systems simultaneously. Running on gasoline or propane, it delivers clean 3% THD output safe for laptops and televisions. At 68 pounds with a wheel kit included, this unit moves easily between storage and deployment. | The Sportsman GEN4000DF is a dual fuel generator capable of producing 4,000 surge watts and 3,500 running watts, suitable for powering RVs, household appliances, and power tools. |
- Most PowerfulGenmax GM5500XiD4000W running
- QuietestGenmax GM5500XiD68 dB
- Longest RuntimeSportsman GEN4000DF10h at 50% load
Where to buy
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Genmax GM5500XiD
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Sportsman GEN4000DF
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