Sunseeker unveils an affordable robot mower for smaller yards

Sunseeker is following a new trend with its budget-priced model L3 robot lawn mower: It eliminates boundary wires by combining AI vision with LiDAR to autonomously map and navigate your yard, ditching the need for a GPS antenna. The budget-priced bot will be one of the least expensive smart devices of its kind when it launches in the U.S. for $999 in January 2026.

On display now at the IFA trade show in Berlin, the Sunseeker L3 will be able to handle lawns up to 1,000 square meters (0.25 acres) can create up to two separate maps, which will make it useful for more than one location. It’s a tiny mower, with a cutting width of just 7.1 inches (18cm) and an adjustable cutting height of between 0.8 to 2.4 inches (20- to 60mm). That maximum cutting height seems short for American lawns. When I’ve had other robots set that low, it has revealed bare patches in my lawn after dry spells.

Sunseeker compares the L3’s feature set and specs to those of the Dreame A1 Pro, a LiDAR-only mower popular in the Europe, but that is not yet offered in the U.S. Dreame’s mower sits a bit higher, with a cutting height of 1.2- to 2.8 inches (30 to 70mm), and it has a wider cutting radius of 8.7 inches (22cm).

The Sunseeker L3 looks small, but mighty

Sunseeker

I hope the L3 lives up to the hype. I was very impressed with the more-sophisticated Sunseeker Orion X7 when I reviewed it in September 2024; it’s one of the best mowers I’ve tested in terms of obstacle avoidance. That mower blends RTK (Real-Time Kinematic) and vision combined with machine learning to navigate your yard.

Vision combined with LiDAR is a less expensive means of navigation, with two-dimensional vision providing a much better means of identifying obstacles to be avoided and LiDAR adding a three-dimensional element. Adding quick-learning artificial intelligence on top of that should endow this mower with outstanding navigation abilities.

But the L3’s sensors and cameras don’t only look ahead at the grass to be cut, Sunseeker says its AllSense technology also looks down and uses AI and camera positioning to detect small obstacles that forward-looking mowers might miss.

If the Orion X7 was that good without LiDAR, and the L3 employs an even better version of Sunseeker’s machine learning technology, I have high expectations for its performance. We’ll see if it can live up to that—and if I can tolerate its short cutting height—when we put a review sample through its paces unit next spring.

This news story is part of TechHive’s in-depth coverage of the best robot lawn mowers.

Author: Ed Oswald, Contributor