Very large yards$2,799
Segway Navimow X350
RTK GPS (base antenna)Camera vision
- Area
- 1.5 ac
- Slope
- 50%
- Drive
- 2WD
- $/acre
- $1,866
1.5-acre X3 for large, mostly open lawns.
Best robot mowers for very large yards (over 1¼ acres)
4 models, cheapest first. Category winners below.
| Category | Winner |
|---|---|
| Steepest slopes | Lymow One Plus |
| Most coverage | Segway Navimow X390 |
| Best value per acre | Segway Navimow X390 |
Very large yards$2,999
Segway Navimow X450
Network RTK (no antenna)Camera vision
- Area
- 1.5 ac
- Slope
- 84%
- Drive
- AWD
- $/acre
- $1,999
1.5-acre version of the X4 for big, steep properties.
Out of stock at Segway Navimow's store as of 2026-09-25.
Very large yards$3,199
Lymow One Plus
RTK GPS (base antenna)Camera vision
- Area
- 1.73 ac
- Slope
- 100%
- Drive
- Tracks
- $/acre
- $1,849
Tank-style tracks rated for 45° (100%) slopes, the steepest here; area is per day with the 10A charger.
Very large yards$4,499
Segway Navimow X390
RTK GPS (base antenna)Camera vision
- Area
- 2.5 ac
- Slope
- 50%
- Drive
- 2WD
- $/acre
- $1,800
The largest-capacity mower here at 2.5 acres.