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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Genmax GM4600iAEFIC
  • Sportsman GEN4000iOF
  • Model GM4600iAEFIC
    Model GM4600iAEFIC

    Genmax 3,800W Gas Generator

    3800W
    Running
    63 dB
    Noise
    View details
  • Model GEN4000iOF
    Model GEN4000iOF

    Sportsman 3,500W Gas Generator

    3500W
    Running
    65 dB
    Noise
    View details
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).
Generator Specifications Comparison
SpecificationGenmax GM4600iAEFICSportsman GEN4000iOF
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
Winner: Winner: 3800 W
3500 W
Starting watts
Winner: Winner: 4600 W
3850 W
Noise (lower limit)
Winner: Winner: 63 dB
65 dB
Weight
Winner: Winner: 58.4 lbs
93 lbs
Run time @50% load
Not available
Winner: Winner: 10 h
Run time @25% load
9 h
Not available
Fuel tank
1.6 gal
4.5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
20.9 x 12.2 x 19.7
23 x 17.5 x 20.3
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
5 %
5 %
Engine
Engine
159 cc OHV 4-stroke
223 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
1 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
3800 W
3500 W
Starting watts
4600 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
Not available
10 h
Run time @25% load
9 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 arrestorYesYes
Neutral
true
Not available
UPC
Not available
27077805437
Core / High-priority specs
Running Watts (Gasoline)
3800
3500
Starting Watts (Gasoline)
4600
3850
Runtime @ 50% Load (Gasoline)
Not available
10
Runtime @ 25% Load (Gasoline)
9
Not available
AC Outlet Types
AC outlets1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
223 cc OHV 4-stroke
Engine Displacement
159
223
Engine Oil Type
SAE 0W-30
SAE 10W30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
9
Not available
Runtime @ 50% Load (Gasoline)
Not available
10
Safety & compliance
Overload Protection System
Not available
Low oil and overload protection
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesNo
Included equipment
Included Accessories
Not available
Tool kit
Additional specs
Summary
The Genmax GM4600iAEFIC is a 3800-watt gasoline inverter generator built for users who need portable power without sacrificing output control. Its 4600-watt peak capacity handles startup surges, while the inverter design keeps electricity clean enough for laptops and sensitive devices. One person can move it.
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.
  • Most Powerful
    Genmax GM4600iAEFIC
    3800W running
  • Quietest
    Genmax GM4600iAEFIC
    63 dB
  • Longest Runtime
    Sportsman GEN4000iOF
    10h at 50% load
Where to buy
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Genmax GM4600iAEFIC
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Sportsman GEN4000iOF
Store links
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