Navimow X390
Rated for 2.5 acres and 50% grade — that is 26.6°, not 50°. On a real lawn, once you allow for borders and travel paths, plan on about 2 acres.
Rated area2.5 acres
Max grade50% · 26.6°
DriveRWD
NavigationRTK + VisionFence
Sold viaOnline retail
What it handles
Rear-wheel drive — better than front, well short of all-wheel. That covers rolling ground, but not a bank you would struggle to walk up.
Navigation includes vision or LiDAR, so it keeps working under tree cover where satellite-only machines lose their fix.
Cross-shopped with
Rated for a similar area, at the same grade or less.
Husqvarna Automower 450XH EPOS2.5 ac · 45% · 2WD
Kress Mission KR233 RTKn3 ac · 40% · 2WD
Segway Navimow X390 — straight answers
- What slope can the Navimow X390 handle?
- 50% grade, which is 26.6° — not 50°. Percent and degrees are different scales and cross only at 100% = 45°.
- How much lawn can the Navimow X390 cut?
- Rated for 2.5 acres. After the coverage buffer real lawns need, plan on about 2 acres of actual mowing.
How confident we are
Cross-checked against the manufacturer and at least one other source.
2.5 ac confirmed by Segway and two retailers. X3 series rated to 50% grade with Traction Control. 58 dB, rear-wheel drive, 12.8 Ah.