Generators under $400

All generators

9 generators under $400 from PowerSmart and Westinghouse. Most cost $320 to $399, and half cost less than $349.

WestinghouseSpec score 9.5

Portable, Dual Fuel, 3000 to 5000 W

+Dual fuel operation for gasoline and propane

+RV ready with a 30A outlet

+Built-in CO sensor for added safety

−Portable unit that is not an inverter design

$399.00

as of 11/04/2026 07:42 PST - Details

PowerSmart

Inverter, Under 3000 W

+Inverter design for clean power output

+Portable design suited to camping

+Marketed as super quiet operation

$319.99

as of 11/04/2026 00:44 PST - Details

PowerSmartSpec score 9.5

Inverter, Dual Fuel, 3000 to 5000 W

+Dual fuel operation adds flexibility

+Inverter design for clean power output

+Includes a CO sensor for safety

$319.99-14%Was: ~~$369.99~~

as of 11/04/2026 00:44 PST - Details

Erayak

Inverter, Gasoline, Under 3000 W

+Inverter design for cleaner power output

+Compact 2400-watt size for small loads

+Quiet operation for camping and outdoor use

−Lower 2400-watt output limits how many devices run

$349.00

as of 11/03/2026 22:51 PST - Details

WEN

Inverter, Under 3000 W

+Inverter design for cleaner power output

+Lightweight and portable for easy carrying

+Includes a fuel shutoff feature

−Under 3000 watts limits it to small loads

−Lower output than mid-size inverter generators

$374.99

as of 11/04/2026 07:41 PST - Details

Generic

Under 3000 W

+Brushless motor design with pure copper coil windings

+Outputs 36V to 72V DC voltage range

+Low noise operation noted in the product title

$325.99

as of 11/03/2026 22:15 PST - Details

Bsmtek

Inverter, Gasoline, 3000 to 5000 W

+Inverter design produces clean power for sensitive electronics

+Gasoline powered with a 3000 to 5000 watt output range

+Portable open frame design for easy transport

$399.99

as of 11/03/2026 22:15 PST - Details

PowerSmart

Inverter, 3000 to 5000 W

+3000 to 5000 W: the most watts of the 9 here

$389.99

as of 11/04/2026 00:44 PST - Details

Aceup Energy

Inverter, Gasoline, Under 3000 W

+Inverter design gives clean power for sensitive electronics

+Rated at 60 dB operating noise for quieter use

+Named for camping use in the product title

$329.99

as of 11/04/2026 10:38 PST - Details

Compare specs

Type	Fuel	Watts	Spec score	Price
Portable	Dual Fuel	3000 to 5000 W	9.5	$399.00 as of 11/04/2026 07:42 PST - Details
Inverter		Under 3000 W	n/a	$319.99 as of 11/04/2026 00:44 PST - Details
Inverter	Dual Fuel	3000 to 5000 W	9.5	$319.99 as of 11/04/2026 00:44 PST - Details
Inverter	Gasoline	Under 3000 W	n/a	$349.00 as of 11/03/2026 22:51 PST - Details
Inverter		Under 3000 W	n/a	$374.99 as of 11/04/2026 07:41 PST - Details
		Under 3000 W	n/a	$325.99 as of 11/03/2026 22:15 PST - Details
Inverter	Gasoline	3000 to 5000 W	n/a	$399.99 as of 11/03/2026 22:15 PST - Details
Inverter		3000 to 5000 W	n/a	$389.99 as of 11/04/2026 00:44 PST - Details
Inverter	Gasoline	Under 3000 W	n/a	$329.99 as of 11/04/2026 10:38 PST - Details

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