Best Overall
EGO POWER+ 21-Inch Self-Propelled Mower Kit (LM2135SP)
Our verdict: A cordless self-propelled kit that takes the strain out of slopes.
The EGO POWER+ is a 21-inch cordless self-propelled mower sold as a kit with battery and charger. It falls in the $500+ range and removes both gas and cord from the equation. Powered wheels pull the mower up a hill so your arms only steer, which cuts the effort that makes slopes exhausting. Cordless starts are instant, so there is no pull cord to yank on a slope.
It ranks above the Greenworks because owners treat it as the more polished cordless option on a maintained hilly lawn, though it costs noticeably more. Compared with the gas SENIX below, you give up unlimited refueling but gain quiet starts and no maintenance.
Choose it if your lawn is hilly but groomed and you want hassle-free starts. The caveat is the battery, since a very large sloped yard may need a spare. Skip it if you want to spend under $500.
- Deck
- 21-inch
- Drive
- Self-propelled
- Power
- Cordless battery
- Included
- Battery and charger
What we like
- +Self-propelled drive
- +Cordless, no gas needed
- +Battery and charger included
- +Quiet easy starts
Watch out for
- −Costs the most here
- −Big yards may need spare
Buy it if: Owners of a maintained hilly lawn who want cordless ease.
Skip it if: You have a very large yard or want to spend under $500.





