Here is another robotic lawnmower that mows your lawn, so you don’t have to. The Gardena R80Li Robotic Lawnmower has a cutting height of .7″ to 2″, which you can set using a rotary knob. It is autonomous, quiet, and capable of working in the rain.
The r80li can mow a lawn area of up to 800 square meters. It has a rechargeable 18V/1.6Ah battery and knows when to recharge itself.