Best 21 Inch Lawn Mowers (2026)

The LM2135SP is the most complete cordless mower in this roundup. A 56V platform with a 7.5Ah battery gives up to 60 minutes of runtime, enough to cut a large suburban lawn on one charge. Torque is rated up to 7.0 ft-lbs, more than the 6.0 ft-lbs of the push LM2114.

Touch Drive lets you engage the self-propel system with palm pressure, which feels more natural than a bail lever and adjusts speed to your pace. The Select Cut multi-blade system uses interchangeable lower blades for mulching, high-lift bagging and extended-reach setups, which matters because blade choice changes cut quality more than most buyers realize.

Against the Greenworks 80V self-propelled mower, it offers a larger battery for similar claimed coverage. Batteries are shared across the EGO family, so one pack can run a trimmer or blower. Maintenance is minimal: wash the deck, sharpen or replace blades each season and store the battery indoors.

The LM2114 is the push-mower version of the EGO line, with a 6.0Ah battery and up to 55 minutes of claimed runtime. It gives up the self-propel system of the LM2135SP and about one ft-lb of torque, but is lighter and simpler.

Seven cutting heights from 1.25 to 4 inches cover most lawn needs. The 6.0Ah battery charges in about 80 minutes, so a second pack makes continuous work possible. For flat lawns up to about a third of an acre, pushing is no hardship.

It is a good choice if you want the EGO platform without paying for self-propel. The tradeoff is that slopes and thick grass feel heavy, and a push mower will tire you out on a big lawn.

Greenworks pairs an 80V platform with rear-wheel drive and variable speed control. Rear-wheel drive puts traction where weight shifts on slopes, which front-wheel systems lose, and variable speed lets you match the pace.

The 4.0Ah battery is rated to cut up to half an acre per charge, a coverage claim that depends on grass height and density. A brushless motor boosts efficiency, and a steel deck is durable. An LED headlight is a niche but real convenience for evening mowing.

Compared with the EGO LM2135SP, the Greenworks battery is smaller, so a second pack is wise for larger lawns. The 80V system also powers other Greenworks tools. Clean the deck after each mow.

This Greenworks 60V kit includes two 4.0Ah batteries, so you can mow continuously while one charges. The listing claims up to 3/4 acre of coverage, which is more than the 80V unit's half acre because it relies on two packs.

A 4-in-1 system adds turbo leaf pickup to the usual mulching, bagging and side discharge. Rear-wheel drive and a brushless motor help with slopes and efficiency. It sits between the 80V and EGO systems in price.

The 60V platform is separate from the 80V, so match it to the rest of your tools. Wash the deck and store the batteries indoors.

WORX adds two technologies aimed at real mowing problems. Aerodeck is a vented deck design that increases airflow under the deck, which helps prevent clogging in damp or thick grass. Intellicut uses sensors to raise motor speed in thick grass and lower it to save battery on thin patches.

The brushless 2.0 motor is rated to deliver more power and runtime than earlier designs. Coverage is quoted up to half an acre. It is a push mower, so it lacks the Touch Drive of the EGO.

Batteries are shared with the PowerShare family of over a hundred tools. Wash the deck underside after wet mowing.

This is the gas option with the biggest engine in the group: a 201cc four-stroke OHV producing 9.0 ft-lb of torque, more than any battery mower here. For thick, tall or wet grass, that torque stays steady until the fuel runs out.

The self-propelled drive moves at a fixed walking speed, which is simpler than variable systems but less adaptable. A single lever adjusts all four wheels across eight heights from 1.2 to 3.7 inches, and 3-in-1 options cover mulching, bagging and discharge.

Gas ownership means oil changes, fresh fuel with stabilizer and an annual blade sharpening. Drain or stabilize fuel before winter. It is the best choice for a large lawn without a battery budget.

SENIX offers a straightforward gas push mower with a 144cc four-stroke engine that ships with oil already in it. That detail saves a first-day trip to the store, and the engine is a simple design that most small-engine shops can service.

The 144cc engine has less torque than the BILT HARD's 201cc, so it suits level lawns and lighter grass. Six heights from 1.25 to 3.75 inches and a 3-in-1 steel deck cover the basics.

As with any gas mower, expect oil changes, fuel stabilizer and annual blade sharpening. It is the lowest-cost route into a 21 inch mower and works well for small, flat yards.