Head to head
Anthbot M9 vs Sunseeker S4
Price, coverage, slope, navigation, and drive for Anthbot M9 and Sunseeker S4, side by side and cited.
- Store prices · checked 2 h agoVerified · checked 6 wk ago
2compared
1,000 m² (0.25 acre)largest lawn
Anthbot M9 (Anthbot M9)·Sunseeker S4 (Sunseeker S4)
Your lawn
Set your lawn to see which of these fits it.
Drive
2-wheel drive
2-wheel drive
Obstacle avoidance
Navigation
Wire-free. Full-band RTK from the included reference station, or network RTK over its built-in 4G where coverage exists, with two 150° AI cameras for obstacles. Rear-wheel drive.
Wire-free. A 360° 3D LiDAR fused with an AI camera (L-SLAM plus V-SLAM), no RTK antenna, base station or perimeter wire.
Cutting
20 cm (7.9 in) cut, 30 to 70 mm (1.2 to 2.8 in) height, about 58 dB
18 cm (7.1 in) cut, 41 to 81 mm (1.6 to 3.2 in) height, about 60 dB
Rain
Rain sensor sends it home, and its schedule follows the weather forecast (IPX6)
Rain sensor sends it back to the dock (the LiDAR cannot measure in rain or fog); IPX6
Anti-theft
GPS tracking, out-of-boundary alarm and Find My over 4G
PIN code and lift and tilt sensor; a 4G-GPS anti-theft module is optional
Connectivity
Wi-Fi, Bluetooth and built-in 4G (3 months free, then a yearly plan)
Wi-Fi and Bluetooth; optional 4G module; Alexa and Google Home; over-the-air updates
Released
2026
2026
A check marks the lower price, the higher score, the larger coverage, and the steeper slope. Our pick below is derived from those same specs; the right choice still depends on your lawn, your budget, and how you'll use it.
Our pick
Which to buy
Best buyAnthbot M9
For most lawns, the Anthbot M9 is the better buy at $699: it covers up to 1,000 m² (0.25 acre), about $601 less than the Sunseeker S4.
From $699The bottom line
What actually differs
- Anthbot M9 has the lower price ($699).
- Anthbot M9 handles the steepest slopes (up to 45%).
Go deeper
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BestRobotMower.co is an independent informational comparison site, not a manufacturer or a retailer. Specifications and prices are curated from public sources and can change or be incomplete. Always confirm the current spec, price, and availability with the manufacturer or seller before buying. Coverage and slope figures are rated maximums on an open lawn; real performance depends on your yard.