For quarter-acre yards with heavy tree cover or tight spaces, where adding LiDAR to RTK is worth the premium over the M9.
Amazon $1,399 Anthbot $1,399
For small, flat, open lawns where a low price matters most. Bumpy or shaded yards will get better results from a LiDAR model.
- 0.12 acresLawn size
- RTK + visionNavigation
- 45% (24°)Max slope
- $5,430Price / acre
- 7.9 inCutting width
- 3 yearsWarranty
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
- One of the cheapest wire-free RTK mowers from a known brand
- Cutting height is set from the app
- Very quiet at 58 dB
- Compact and light enough to carry between yards
- Rated for only about an eighth of an acre
- Narrow 20 cm cut
- Testers of the M9 twin found it struggles on rough or bumpy ground and leaves a wide uncut edge strip
- Long-term NetRTK/4G service has to be paid for
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Coverage | |
|---|---|
| Lawn size (rated) | 0.12 acres (5,400 sq ft) |
| Max slope | 45% (24°) |
| Battery | 2.5 Ah |
| Navigation | |
| Navigation | RTK + vision |
| Boundary wire needed | No |
| Obstacle avoidance | Dual 150° HDR AI cameras |
| Multiple zones | Yes |
| No-go zones | Yes |
| Cutting | |
| Cutting width | 7.9 in (200 mm) |
| Cutting height | 1.2–2.7 in (30–70 mm) |
| Height adjustment | In the app |
| Blades | 5 free-rotating blades on a 20 cm disc |
| Edge mowing | On-edge mowing mode |
| Smart features | |
| Connectivity | 4G |
| Rain sensor | Yes |
| Anti-theft | GPS tracking with alerts when the mower leaves its zone |
| Build | |
| Noise (rated) | 58 dB(A) |
| Water resistance | IPX6 |
| Warranty | 3 years |
Alternatives in this size
For steep or uneven lawns up to a quarter acre where you want mapped, wire-free mowing without mounting an RTK antenna.
Worx $1,999.99For a small but sloped or bumpy yard up to about 0.25 acre. The all-wheel drive and built-in 4G set it apart from other budget wire-free mowers.
Amazon $1,299 Navimow $1,299Compare
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