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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.

  • Honda EM6500SX
  • Ryobi RY906500S
  • Model EM6500SX
    Model EM6500SX

    Honda 5,500W Gas Generator

    5500W
    Running
    64 dB
    Noise
    View details
  • Model RY906500S
    Model RY906500S

    Ryobi 6,500W Gas Generator

    6500W
    Running
    72 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
SpecificationHonda EM6500SXRyobi RY906500S
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
5500 W
Winner: Winner: 6500 W
Starting watts
6500 W
Winner: Winner: 8125 W
Noise (lower limit)
Winner: Winner: 64 dB
72 dB
Weight
231.7 lbs
Winner: Winner: 195 lbs
Run time @50% load
9.8 h
Winner: Winner: 10 h
Run time @25% load
Not available—
Not available—
Fuel tank
6.2 gal
6 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
41.4 x 27.8 x 28.3
39 x 29 x 24.5
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
12
Not available—
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
20 %
Engine
Engine
Honda iGX390 OHV 4-stroke, cast iron sleeve
420 cc OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
5500 W
6500 W
Starting watts
6500 W
8125 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
9.8 h
10 h
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
false
false
Compliance
EPA, ANSI/PGMA G300-2023
EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Floating
Bonded to frame
UPC
786102007429
46396023483
Core / High-priority specs
Running Watts (Gasoline)
5500
6500
Starting Watts (Gasoline)
6500
8125
Runtime @ 50% Load (Gasoline)
9.8
10
AC Outlet Types
AC outlets2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Honda iGX390 OHV 4-stroke, cast iron sleeve
OHV 4-stroke
Engine Displacement
389
420
Cylinder Sleeve
Cast iron sleeve
Not available—
Engine Oil Type
10W-30
Not available—
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
9.8
10
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric, Remote
Not available—
Included Accessories
Battery and wheel kit
Oil, tool kit, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Part Number
EM6500SXK2AN
Not available—
Additional specs
Summary
The Honda EM6500SX is a 6500-watt generator equipped with an electric start, Bluetooth capability, and CO-MINDER for advanced carbon monoxide detection. It offers a long run time of up to 9.8 hours and can power a variety of household appliances.
The Ryobi RY906500S is a 6,500-watt gasoline-powered portable generator equipped with a CO shutdown sensor for enhanced safety. It features a 6-gallon fuel tank providing up to 10 hours of runtime at 50% load, and includes multiple outlets for versatile power needs.
  • Most Powerful
    Ryobi RY906500S
    6500W running
  • Quietest
    Honda EM6500SX
    64 dB
  • Longest Runtime
    Ryobi RY906500S
    10h at 50% load
Where to buy
Prices can change. We update these automatically.
Honda EM6500SX
Store links
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Ryobi RY906500S
Store links
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