Here is a powerful robotic lawn mower that can cut grass without you having to break a sweat. The TREX 44 is a fully autonomous robot that uses deep learning neural networks and RTK-GPS to understand its surrounding area.
This robotic mower can overcome 50-degree slopes. It has a cutting width of 44 inches. It is powered by a 19 HP Briggs & Stratton engine. You can find out more about it here.