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Segway's Wire-Free Approach to Robot Mowing

Navimow is Segway's robotic lawn mower brand, built around removing the buried perimeter wire that traditional robot mowers depend on. Instead of a physical boundary, the i Series uses EFLS 2.0, combining RTK satellite positioning with vision-based localisation for centimetre-level accuracy, while the newer X Series runs EFLS 3.0 with dual RTK signals and a wider camera array. VisionFence handles obstacle avoidance, recognising over 150 object types on the i Series and over 180 on the X Series, including pets, garden furniture and toys, rather than relying on bump sensors. Models span small urban gardens through to large estates, and all of them cut in systematic patterns rather than the random paths older mowers used.

What Replaces the Boundary Wire

Wire-free means no trenching and no buried perimeter cable, which removes the main reason robot mowers used to need professional installation. What replaces it is a mapping run: you drive the mower around your boundary from the app, much like a remote-control car, and it records the perimeter. That takes an afternoon rather than a weekend. The thing to check before you buy is signal, since RTK positioning depends on Network RTK coverage in your area, and Navimow lets you verify your postcode on its site. Dense tree cover, tall buildings and narrow side passages are where satellite positioning weakens, which is precisely why the vision system exists as a backup, but a garden that is mostly enclosed or heavily overhung deserves a careful check before you commit. Slopes are the other constraint, each model carries a maximum gradient it can handle, so match that to the steepest part of your lawn rather than the average.