Neato
Most robotic vacuums wander aimlessly around your floors, but the Neato
Botvac D5 Connected creates a battle plan before setting on its way. A spinning infrared laser navigation system scans and maps the parameters of your room in order to create as thorough a cleaning pattern as possible. It can clean up to 4,500 square feet over the course of three runs, and if its battery runs low, the robovac will recharge itself and then continue its cleaning cycle where it left off.
Testing
Like most robovacs these days, there's not much you need to do to get the D5 up and running. After plugging its charging cradle into an outlet, we placed the D-shaped bot against the cradle's two metal charging strips and let it juice up. A battery light turns from orange to green once it's fully charged.