Segway's robot mower uses GPS to stay on your lawn

Segway is moving into the robot mower market with the Navimow. What sets this model apart from many others is that you don't need to install a boundary wire. Instead, Navimow uses GPS and other sensors to stay within the perimeter of your lawn. A so-called Exact Fusion Locating System can maintain Navimow's position accurate to within two centimeters, according to Segway. If the GPS signal ever dips, the company says the device's array of sensors and data ensure it will still work.