Head to head
Sunseeker S4 vs Sunseeker V3
Price, coverage, slope, navigation, and drive for Sunseeker S4 and Sunseeker V3, side by side and cited.
- Store prices · checked 6 h agoVerified · checked 2 wk ago
2compared
1,000 m² (0.25 acre)largest lawn
Sunseeker S4 (Sunseeker S4)·Sunseeker V3 (Sunseeker V3)
Price
Your lawn
Set your lawn to see which of these fits it.
Drive
2-wheel drive
2-wheel drive
Obstacle avoidance
Navigation
Wire-free. A 360° 3D LiDAR fused with an AI camera (L-SLAM plus V-SLAM), no RTK antenna, base station or perimeter wire.
Wire-free. Binocular AI cameras read the lawn edges and obstacles, with magnetic strips for open or unclear edges; no RTK, no LiDAR, and it mows in daylight only.
Cutting
18 cm (7.1 in) cut, 41 to 81 mm (1.6 to 3.2 in) height, about 60 dB
18 cm (7.1 in) cut, 20 to 60 mm (0.8 to 2.4 in) height, about 55 dB
Rain
Rain sensor sends it back to the dock (the LiDAR cannot measure in rain or fog); IPX6
Automatic rain detection with a default 3-hour rain delay (IPX5)
Anti-theft
PIN code and lift and tilt sensor; a 4G-GPS anti-theft module is optional
PIN code and lift and tilt sensor
Connectivity
Wi-Fi and Bluetooth; optional 4G module; Alexa and Google Home; over-the-air updates
Wi-Fi (2.4 GHz) and Bluetooth; Alexa and Google Home
Released
2026
2025
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 buySunseeker V3
For most lawns, the Sunseeker V3 is the better buy at $799.99: it matches its 42% slope rating, about $480 less than the Sunseeker S4. Step up to the Sunseeker S4 only if your lawn is larger than 600 m² (0.15 acre).
From $799.99The bottom line
What actually differs
- Sunseeker V3 has the lower price ($799.99).
- Sunseeker S4 covers the most lawn (1,000 m² (0.25 acre)).
Go deeper
Open the full record
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.