There are all kinds of robot lawn mowers, but finding one that can effectively handle a moderately large lawn with complicated terrain can be tricky. If you live on a property with trees, slopes, narrow passages, or weak GPS reception, you likely need a model that can handle the above with autonomous LiDAR-and-camera mapping. The MOVA LiDAX Ultra 3000 robot mower is a reliable option, and it's currently $800 off, down to an all-time low price of $2,199.

This AI-enabled mower has four-motor AWD and a wide dual-disc deck, running without a perimeter wire or RTK antenna. A physical bumper, dual 1080p cameras, and LiDAR offer three layers of obstacle detection. Runtime is up to 170 minutes, and it takes around an hour to charge. It can handle slopes up to 80% with an obstacle threshold height of up to 2.4 inches. It can cover up to .75 acres and has an electronically adjustable cutting height range from 1.2 to 3.9 inches, which is wider than many mowers in its class.

You can set zone control for up to 150 zones and there are several mowing patterns to choose from, as well as security features like location tracking, live audio, off-map alerts, and human detection. It also lets you map out two separate areas, so you can mow both your front and back or side lawns or for two different properties, though lugging around this 52-pound beast might not be the easiest feat. It has an IPX6 rating, so it can tolerate a sprinkler going off, but may not perform ideally in the rain.

While it can easily get the job done on a flat lawn, it might be more mower than necessary. The MOVA LiDAX Ultra 3000 robot mower is really best for more challenging terrain.  Combined with a versatile cutting range, a wide range of smart features, and long battery life, this mower is a formidable player in the robot lawn mower realm and a good choice at the current 27% discount.