Answered from our dataUpdated November 4, 2026
10 of the 22 robot lawn mowers we list are rated by their makers for slopes steeper than 45%.
Counted from the steepest slope each maker rates its mower for. How we score and check
Best overall score first. Each links to its full review, where the score is broken down.
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17th of 22 in Wire-Free Robot Mowers
Up to 30%Counted from our data November 4, 2026 · · How we score · All answers