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 $1,399The Anthbot M9 Pro rates 4.1 among up to 1/4 acre robot lawn mowers; the Anthbot N8 rates 3.6 among 1/4 to 1 acre ones. The Anthbot M9 Pro costs $300 less ($1,399 vs $1,699).

For lawns of about a third of an acre whose owners want clippings and leaves collected rather than mulched. If mulching is fine, a cheaper mower covers more ground.
Amazon $1,699 Anthbot $1,699Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (up to 1/4 acre and 1/4 to 1 acre), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Anthbot M9 Pro | Anthbot N8 |
|---|---|---|
| Overall rating | 4.1/5 | 3.6/5 |
| Value 30% | 71 $5,600 per rated acre | 33 $4,530 per rated acre |
| Navigation 20% | 100 LiDAR + RTK + vision, no boundary wire | 80 RTK + vision, no boundary wire |
| Slopes 20% | 36 45% (24°) slopes | 36 45% (24°) slopes |
| Features 15% | 100 8 of 8 | 100 5 of 5 |
| Warranty 10% | 67 3-year warranty | 67 3-year warranty |
| Noise 5% | 80 58 dB(A) rated | 80 58 dB(A) rated |
Specifications
| Anthbot M9 Pro | Anthbot N8 | |
|---|---|---|
| Coverage | ||
| Lawn size (rated) | 0.25 acres (10,900 sq ft) | 0.38 acres (16,300 sq ft) |
| Max slope | 45% (24°) | 45% (24°) |
| Battery | 5 Ah | 9.2 Ah |
| Navigation | ||
| Navigation | LiDAR + RTK + vision | RTK + vision |
| Boundary wire needed | No | No |
| RTK station | Included | Included |
| Obstacle avoidance | 360° LiDAR + AI cameras | Dual 150° HDR AI cameras |
| Multiple zones | Yes | Yes |
| No-go zones | Yes | - |
| Cutting | ||
| Cutting width | 7.9 in (200 mm) | - |
| Cutting height | 1.2–2.8 in (30–70 mm) | - |
| Height adjustment | In the app | - |
| Blades | - | 3-blade mowing disc or dual-layer 6-blade mulching disc (both included) |
| Edge mowing | EdgeWiz edge mowing | - |
| Smart features | ||
| Connectivity | 4G (1 year of 4G included) | 4G |
| Rain sensor | Yes | Yes |
| Anti-theft | Anti-theft tracking | Anti-theft protection (details not published) |
| Build | ||
| Noise (rated) | 58 dB(A) | 58 dB(A) |
| Water resistance | IPX6 | IPX6 |
| Warranty | 3 years | 3 years |