Head to head
Segway Navimow X390 vs Sunseeker X3 Plus
Price, coverage, slope, navigation, and drive for Segway Navimow X390 and Sunseeker X3 Plus, side by side and cited.
- Store prices · checked 19 h agoVerified · checked 5 wk ago
2compared
10,118 m² (2.5 acres)largest lawn
Segway Navimow X390 (Navimow X390)·Sunseeker X3 Plus (X3 Plus)
Your lawn
Set your lawn to see which of these fits it.
Drive
2-wheel drive
2-wheel drive
Obstacle avoidance
Navigation
Wire-free. RTK GNSS plus onboard AI vision, no perimeter wire.
Wire-free. AONavi = RTK-GNSS plus VSLAM camera vision, no perimeter wire.
Cutting
23.7 cm (9.3 in) cut, 50 to 100 mm (2.0 to 3.9 in) height, about 60 dB
20.3 cm (8.0 in) cut, 40 to 80 mm (1.6 to 3.1 in) height, about 55 dB
Rain
Weather-adaptive: pauses and returns to the dock in rain, snow, or frost (IP66)
Rain sensor: stops and returns to base in bad weather
Anti-theft
GPS tracking, PIN code, lift/burglar alarm, and a geofence out-of-boundary alert
Built-in GPS theft protection and geofencing (alerts if it leaves its zone)
Connectivity
4G, WiFi, Bluetooth (5-year free 4G service)
WiFi, Bluetooth; 4G optional (add-on module)
Released
2025
2024
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 X3 Plus
For most lawns, the Sunseeker X3 Plus is the better buy at $899.99: it covers up to 1,200 m² (0.3 acre), about $3,599 less than the Segway Navimow X390. Step up to the Segway Navimow X390 only if your lawn is larger than 1,200 m² (0.3 acre) or steeper than 30%.
From $899.99The bottom line
What actually differs
- Sunseeker X3 Plus has the lower price ($899.99).
- Segway Navimow X390 covers the most lawn (10,118 m² (2.5 acres)).
- Segway Navimow X390 handles the steepest slopes (up to 50%).
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.