A robotic mower is an automated lawn mower that cuts the grass by itself. This requires little effort by the user, and they can sometimes be controlled remotely through a smartphone app.
Sometimes it can be hard to start gas-powered lawn mowers, but with an electric starter you can be guaranteed of it starting first time.
Cordless tools/machines are suited to a variety of different situations, as you are not limited to only working in places with power sources nearby.
A self-propelled lawn mower requires less effort from the user, as you don’t have to manually push it forward.
The time it takes to fully charge the battery.
Audible noise is the noise that a device produces while in operation. Reduced audible noise improves quality.