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Yes, if you match the mower to the slope. The slope rating on the box is the number that matters most for hills, and it’s usually a best case. More picks on the robot mower hub .
Read the slope number right
Slope is given in percent grade: vertical rise divided by horizontal run, times 100. A 12-inch rise over 24 inches is 50% (MowScout ). Some quick conversions:
| Grade | Angle |
|---|---|
| 30% | about 17° |
| 45% | about 24° |
| 80% | about 38.7° |
Published ratings are dry grass, straight line numbers. Wet turf and driving across a bank cut the usable figure (MowScout ). Buy a mower rated above your steepest section.
Drivetrain sets the ceiling
MowScout’s data shows a pattern: rear-wheel drive tops out around 30%, standard all-wheel drive around 45%, and high-torque AWD models reach about 80% (MowScout ).
Small and flat
The Navimow i105 is built for yards up to 1/8 acre, rated for 30% slopes, and lists at $799 (SunCo Lawns ). Fine for a gentle front lawn. See the Navimow i105
Small and steep
This is the hard combo, since most 80% mowers are built for big yards. Mammotion rates the LUBA 2 AWD for 80% (38.6°) and up to 80mm obstacles (Mammotion ). MowScout’s top small-steep pick is the LUBA mini 2 AWD, which keeps the 80% rating at 0.37 acres (MowScout ). See Mammotion LUBA mini
Checklist
- Measure mowable grass, not the lot.
- Find your steepest regular route.
- Count separate zones (front, back, side).
- Note tree cover. RTK needs open sky; LiDAR handles trees better.
For the full brand comparison, see Navimow vs Mammotion vs Husqvarna .