The Sunseeker X3 Plus is a wire-free robotic mower for small and mid-size suburban yards up to 0.3 acre (about 13,000 square feet). It navigates with AONavi Fusion, pairing RTK satellite positioning with Vision AI camera tracking, so the lawn's borders are virtual boundaries drawn in the app rather than buried wire.
Its signature trick is Ride-on-Edge cutting: the X3 Plus rides its wheel along walls, fences, and borders to trim where other robot mowers leave a strip for the string trimmer. Up to 6 zones can be scheduled separately, path planning keeps passes systematic rather than random, and Vision AI obstacle avoidance steers around toys, pets, and beds.
The X3 Plus cuts a 7.9 inch swath with height adjustable from 1.6 to 3.2 inches, handles slopes up to 30 percent (17 degrees), and runs at a quiet 59 dB(A). A 5 Ah battery recharges in about 90 minutes, the body is rated IPX5, and it connects over Wi-Fi, Bluetooth, and 4G. At 19.9 pounds it is also one of the lightest mowers in Sunseeker's range.
| Coverage and Cutting | |
|---|---|
| Rated Coverage | Up to 0.3 acre (about 13,000 square feet) |
| Cutting Width | 7.9 inches |
| Cutting Height | 1.6 to 3.2 inches |
| Edge Cutting | Ride-on-Edge trimming along fences, walls, and borders |
| Zones | Up to 6 zones with separate schedules |
| Navigation and Sensing | |
| Positioning | AONavi Fusion: RTK satellite positioning + Vision AI tracking |
| Boundaries | Virtual boundaries set in the app, no buried wire |
| Obstacle Avoidance | Vision AI obstacle detection and avoidance |
| Path Planning | Systematic path planning, not random bounce |
| Battery and Build | |
| Battery | 5 Ah |
| Charging Time | About 90 minutes |
| Slope | Up to 30 percent (17 degrees) |
| Noise | 59 dB(A) |
| Waterproof | IPX5 |
| Weight | 19.9 pounds |
| Size (L x W x H) | 23.9 x 15.0 x 9.8 inches |
| Connectivity | |
| App | Sunseeker app for mapping, zones, schedules, and no-go areas |
| Connections | Wi-Fi (2.4 GHz), Bluetooth, and 4G |
The X3 Plus is the edge specialist for 0.3 acre suburban yards: lots with fences, walkways, defined borders, and several separate grass areas. If your current routine is mow, then walk the perimeter with a string trimmer, Ride-on-Edge is the feature that changes the routine.
It prefers yards on the flatter side, with slopes up to 30 percent. Within the Sunseeker lineup, the X4 adds 360-degree LiDAR sensing for heavy shade and complex layouts at similar coverage, while the X5 Gen 2 steps up to half-acre lawns and 60 percent slopes.
Ships as Sunseeker's complete X3 Plus kit; see the What's in the Box section of the product manual for the full accessory count.
The Sunseeker X3 Plus comes with Sunseeker's 2-Year Worry-Free Warranty for residential use. RoboticsSelect is an authorized Sunseeker dealer, so warranty support is handled through us.
| Item | Coverage |
|---|---|
| Mower | 2-year manufacturer warranty |
| Blades | Not covered (wear items) |
Warranty service requires a valid proof of purchase.
Noxmow Official Guarantee: Every purchase includes complimentary Liftgate Freight Delivery, official 3-Year warranty coverage, and dedicated technical concierge support.
All Noxmow products ship via specialized freight carriers with complimentary liftgate service for US and Canada orders this week.
Every purchase includes an official 3-Year Limited Manufacturer Warranty covering all mechanical drive systems, cutting motors, lithium-ion battery cells, and RTK antenna modules.
Enjoy our 30-Day Risk-Free Yard Trial. Run the mower across your yard. If it does not exceed your expectations, contact our concierge for a 100% full refund and free return freight.
EFLS 3.0 TRI-BAND RTK + 300° OPTICAL AI
From 0.5 to 2.5 full acres, the Segway Navimow X3-Series delivers unrivaled mowing capacity for expansive residential estates. Powered by modular high-capacity lithium-ion battery packs and tri-band satellite RTK, it powers through slopes up to 40° (84%) while maintaining centimeter boundary precision.
FACTORY INVENTORY
Ships in custom wooden pallet freight packaging with liftgate delivery direct to your driveway. All mounting and charging components included.
Independent hardware evaluations across residential acreage, severe slopes, and dense satellite obstruction conditions.
Evaluated on clay-heavy damp soil with undulating 35-degree inclines. The AWD architecture and dual suspension held a consistent cutting line without wheel spin, scalping, or chassis bottoming out.
Configured wire-free virtual boundaries across 3 distinct zones separated by concrete walkways. Network RTK fused with optical cameras maintained stable position lock even with heavy foliage overhead.
Delivered via heavy freight carrier with 24-hour appointment scheduling. Pallet crate rolled directly into residential garage threshold with all RTK cables, base station, and spare blades sealed intact.