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Segway Navimow X390
8.1/10- Price
- $4,499
- Area
- 10,000 m²
- Slope
- 50%
- Navigation
- RTK + camera
Navigation and coverage9.5
Rated area: 10,000 m² (2.50 acre)
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Yarbo Y40 Core + Lawn Mower Pro Module
7.3/10$5,499
The Yarbo Y40 Core + Lawn Mower Pro Module is a RTK / satellite, wire-free robot mower rated for 24,281 m² and 70% slopes. Its strongest category is value.
Specs last checked October 3, 2026.
Buy it if
- You want no perimeter wire to bury or repair.
- Your lawn has steep sections, up to 70% grade.
- You have a large lawn, up to 6.00 acre.
Skip it if
- You can't mount an RTK antenna with a clear view of the sky.
Score breakdown
Navigation and coverage25%8.5
Terrain20%7.9
Value15%10.0
Setup and app15%6.0
Owner reputation15%, neutral until owner data5.0
Security and weather10%4.5
Full specs
| Price | $5,499 |
|---|---|
| Rated area | 24,281 m² (6.00 acre) |
| Max slope | 70% |
| Navigation | rtk+multi-sensor |
| Boundary wire | No |
| RTK base or antenna | Yes |
| Drive | Not confirmed |
| Cutting width | 50.8 cm |
| Cutting height | 20 to 102 mm |
| Battery | Not confirmed |
| Runtime | Not confirmed |
| Charge time | Not confirmed |
| Noise | Not confirmed |
| Multi-zone | Not confirmed |
| Obstacle avoidance | Not confirmed |
| Anti-theft | Not confirmed |
| App | Not confirmed |
| Rain sensor | Not confirmed |
| Water rating | IPX6 |
| Weight | 90.7 kg |
| Sold in | US |
Notes: Cutting width from a search snippet and IPX6 from M-series coverage, neither confirmed on the Y40 page. Modular platform. Y40P variant with trimmer $6,699.
Ranked in
Alternatives for a similar lawn
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- Price
- $4,299.99
- Area
- 8,094 m²
- Slope
- 45%
- Navigation
- RTK / satellite
Navigation and coverage8.5
Rated area: 8,094 m² (2.00 acre)
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Lymow One Plus
8.5/10- Price
- $2,799
- Area
- 7,001 m²
- Slope
- 100%
- Navigation
- RTK + camera
Navigation and coverage9.0
Rated area: 7,001 m² (1.73 acre)
Questions people ask
How big a lawn can the Yarbo Y40 Core + Lawn Mower Pro Module mow?
The maker rates it for 24,281 m² (6.00 acre).
Can the Yarbo Y40 Core + Lawn Mower Pro Module handle slopes?
It is rated for slopes up to 70%.
Does the Yarbo Y40 Core + Lawn Mower Pro Module need a boundary wire?
No. It navigates by rtk / satellite.
How much does the Yarbo Y40 Core + Lawn Mower Pro Module cost?
US list price is $5,499. Prices change, so check the retailer.