Boundary Wire or Wire-Free? How Robot Mowers Find the Edge
Last verified: October 2026
A plain-English look at the three ways a robot mower finds your lawn's edge — buried wire, wire-free satellite, and camera vision — and which suits your yard. Rather talk it through? (330) 200-8042.
How Robot Mowers Find the Edge, at a Glance
There are three ways a robot mower knows where your lawn ends: a buried boundary wire it senses (proven, and it ignores trees and sky), wire-free RTK satellite positioning you draw on your phone (no digging, but it needs a clear view of the sky), and camera and AI vision — sometimes with LiDAR — that helps it see obstacles, often paired with satellites. Which suits you comes down mostly to how much open sky your yard has. This guide compares all three, with a printable deep-dive up top.
Common Questions
1 What are the three ways a robot mower finds the lawn's edge?
A buried boundary wire the mower senses, wire-free RTK satellite positioning you draw on a phone, and camera and AI vision (sometimes with a LiDAR laser) that helps it see obstacles. Vision is usually paired with satellite positioning rather than replacing it. Many models blend these methods, so look at the mix a given model offers.
2 What does RTK mean, and why do trees matter?
RTK is high-accuracy satellite positioning — good to roughly a couple of centimeters, sharp enough to keep a mower out of the flower bed. It works with a fixed antenna and a clear view of the sky. Tall trees, dense canopy, and close buildings block the signal, which is a real problem on shaded, wooded lots.
3 Is a buried wire outdated, or still a good choice?
Still a good choice. The wire is the proven, low-cost method, and because the mower doesn't look to the sky, it ignores shade entirely — which makes it the smart pick for many wooded lots. The trade-off is laying the wire at setup and occasionally repairing a break.
4 I have a shaded, wooded lot — which method should I pick?
Lean toward a buried-wire mower. Under a heavy canopy — common across Portage County — satellite positioning struggles to hold a steady signal, while a wire doesn't care about the shade and simply works beneath the trees. Stand in your lawn and look up before you buy: if you mostly see leaves, be very cautious with wire-free.
5 Can a camera-guided mower work with no wire and no satellites?
Cameras mainly help a mower see and dodge obstacles — a hose, a toy, a pet. The boundary and position usually still come from a wire or from satellites, so vision is typically a partner to those methods, not a full replacement. A great camera doesn't fix a lot with no sky view.
6 Which brands use which method?
As examples only, and worth verifying against current models: Husqvarna Automower offers wired and GPS-guided models; Worx Landroid is another established name; Segway Navimow and EcoFlow Blade are wire-free with vision; and Mammotion's Luba and Yuka lines use RTK with LiDAR and/or vision plus all-wheel drive. Always compare current models, specs, and prices before buying.
Would You Rather I Just Help?
Choosing between a buried wire and a wire-free mower is one of the most important robot-mower decisions, and it turns almost entirely on your yard. I'll stand in your lawn, judge how much open sky it really has, weigh your trees, slopes and layout, and help you match the right guidance method before you spend — then handle the app and zones once it's here. $99 flat for a visit, 30-day come-back-free.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).