Product Price Mower Type Power Source Cutting Width (in) Engine Power (hp) Deck Material Height Adjustment Levels Weight (lb) Self-Propelled
Greenworks Greenworks 21in 80V Self-Propelled (GD80LM21SP)
US
£328.89 Self-propelled Battery 21 in Steel 65 lbs

Battery-powered 21 in self-propelled mower with a brushless motor, steel deck, dual battery ports (Auto Switch), SmartCut power management, and LED headlights. Suited for homeowners who want a gas-free, low-maintenance mower with long runtime and easy storage.

Ryobi Ryobi 40V 21in Self-Propelled (RY401110)
US
£321.40 Self-propelled walk-behind Battery (40V) 21 in

A 21 in battery-powered self-propelled lawn mower in Ryobi's 40V line designed for medium-sized yards. It offers cordless convenience and compatibility with Ryobi 40V batteries, suited for homeowners wanting lower noise and no-gas maintenance.

EGO Power+ EGO Power+ 1000 Self-Propelled 22in (LM2102SP)
US
£748.44 self-propelled 56V ARC Lithium battery 22 in super composite

A powerful 22 in cordless self-propelled mower from EGO's 1000 series with a super-composite deck, Select Cut multi-blade system, variable blade speeds and Touch Drive self-propel technology. It suits users with medium to large yards who want gas-level power and long battery runtime without gas maintenance.

Toro Toro Super Recycler 21in Self-Propelled (20956)
US
£448.76 Walk Behind Gasoline 21 in Aluminum 83 lbs

The Toro Super Recycler is a 21 in self-propelled gas mower with a commercial-grade cast-aluminum deck, 163 cc Briggs & Stratton engine, Personal Pace self-propel system, and SmartStow vertical storage. It's designed for homeowners who want durable construction, easy storage, and versatile 3-in-1 mowing (mulch, bag, side discharge).

Honda Honda HRX-BE 21in Electric Self-Propelled
US
£973.20 Battery Powered Battery (12 Ah standard; dual-bay compatible) 21 in NeXite 91.0 lbs

The HRX-BE is a 21 in battery-powered, self-propelled mower with Honda's eSelect variable-speed drive, a 4-in-1 VersaMow system, and a rust-free NeXite deck. It suits homeowners who want a high-quality, low-maintenance electric mower with good run time and commercial-grade features for residential use.

Stihl Stihl RM 655 YS 21in Self-Propelled
US
£861.56 Lawn Mower Gas 20.87 in 3.5 hp Aluminum 103.6 lb

The RM 655 YS is a 21 in gas self-propelled mower with a hydrostatic (YS) drive, a 173 cc Kohler engine producing 3.5 hp, and an aluminum deck for corrosion resistance. It offers bagging, mulching, and single-point height adjustment across seven heights, suited to homeowners with larger lawns who want a durable, variable-speed mower.