There are plenty of fancy robotic mowers on the market but most of them are not designed to take on steep slopes. The Mowrator S1 is a remote controlled slope mower with a 21-inch blade. It can take on large yards and steep slopes. It has an adjustable cutting height of 1.5 to 4.6 inches. It can also handle off-road conditions.
The Mowrator S1 comes with a joystick that lets you easily control it. It has an IMU to keep moving on a straight line. An optional vacuum kit is available for it. The battery life lasts up to 2.25 hours.