Segway Navimow i105N Wire-Free Robotic Lawn Mower (1/8 Acre) Review (2026)
By Nate Sawyer, Editor · Updated July 2026
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- Small yards
- Wire free setup
- Yards with trees and obstacles
The Segway Navimow i105N is a wire-free robot mower for small yards up to about an eighth of an acre, using RTK-GPS plus an AI VisionFence camera so you draw boundaries in an app instead of burying wire, and it dodges 150+ common obstacles. It runs quietly at about 58 dB with easy multi-zone edits, but coverage is small, the wire-free system needs a clear satellite signal that heavy tree cover can disrupt, and its 30% slope limit trails wire-guided premium mowers.
Pros
- Wire-free RTK-GPS setup with app-drawn virtual boundaries avoids the hours of boundary-wire install other robots require
- AI VisionFence camera detects 150+ common obstacles and helps the mower work near trees and narrow corridors
- Very quiet at about 58 dB with multi-zone management, and easy to adjust boundaries later in the app
Cons
- Coverage is limited to roughly an eighth of an acre, so it suits small yards only
- Wire-free RTK needs a reliable overhead satellite signal and can struggle under heavy tree cover or tall buildings
- About 30% slope handling trails wire-guided premium mowers, and spinning blades still demand kids and pets stay clear
Specifications
| Type | Wire-free robotic lawn mower |
|---|---|
| Coverage | Up to about 1/8 acre (~5,400 sq ft) |
| Navigation | EFLS 2.0 RTK-GPS + VisionFence camera (no boundary wire) |
| Obstacle avoidance | AI VisionFence, 140-degree camera detects 150+ common obstacles |
| Cutting | 7.1 in cutting width, multi-zone management |
| Slopes | Up to about 30% (roughly 16-17 degrees) |
| Battery | 2.55Ah, about 90-minute recharge; ~58 dB |
| Best for | Small yards, especially those with trees and obstacles, set up without wire |
Frequently Asked Questions
- Does the Navimow need a boundary wire?
- No — it uses RTK-GPS with app-drawn virtual boundaries, which removes the hours of wire-laying that traditional robot mowers require and makes changing zones a phone task rather than a digging one.
- Where does wire-free navigation struggle?
- Under heavy tree cover or beside tall buildings, where the RTK satellite signal gets blocked. That is the trade for skipping the wire, and it is worth checking your yard's sky view before buying.
- How big a yard can it handle?
- About an eighth of an acre, roughly 5,400 sq ft, with a 7.1 in cutting width and around 30% slope capability — less slope than wire-guided premium mowers. It runs quietly at about 58 dB, but spinning blades still mean keeping kids and pets clear.