Best robot mowers for slopes
Slope rating is the spec that separates robots on hilly ground — exceed it and the mower slips or stalls. These models publish a slope rating, ranked steepest first.
How we rank: robots with a sourced slope rating, ranked by maximum gradient (steepest first). These are transparent sorts on sourced specs — we don't publish editorial scores until they're defensibly sourced. Blanks mean "not specified", never a guess.
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Mammotion Luba 2 AWD 5000 (5000)
verified Rated to 80% slope · all-wheel drive · up to 5000 m²
- large/complex gardens
- steep slopes (80% / AWD)
- wire-free RTK + vision
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Stihl iMOW 5 EVO
verified Rated to 45% slope · up to 1500 m² · £2,239
- large gardens up to 1500 m²
- steep slopes (45%)
- wide 28 cm cut
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Gardena Sileno city (250 m²)
verified Rated to 35% slope · up to 250 m²
- small gardens
- quietest in class
- narrow passages (CorridorCut)
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Segway Navimow i105E
verified Rated to 30% slope · up to 500 m²
- wire-free
- no local antenna (Network RTK)
- medium gardens
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Worx Landroid Vision L1600 (WR216E)
verified Rated to 30% slope · up to 1600 m²
- wire-free AI camera (no RTK/wire)
- unbox-and-mow
- large gardens
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Bosch Indego S+ 500
Rated to 27% slope · up to 500 m²
- logical lane mowing (LogiCut)
- small-to-medium lawns
- Bosch 18V owners
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Husqvarna Aspire R4
verified Rated to 25% slope · up to 400 m²
- small gardens
- low noise
- wire-guided reliability
FAQ
What does a slope percentage mean?
It's the gradient as a percentage: a 45% slope rises 45 cm over each metre travelled. All-wheel-drive models reach the highest figures.