Segway Navimow i105E review UK: wire-free RTK GPS, VisionFence AI obstacle avoidance, 500m² coverage and a friendly app. Is this robot mower worth it in 2026?
📊 Review Score Breakdown
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If you have ever spent a Bank Holiday weekend on your knees pinning boundary wire around flower beds, the Segway Navimow i105E will feel like a small miracle. This is a wire-free robot lawnmower that uses satellite positioning and an AI camera to map and mow your garden on its own — no trench, no cable, no fuss. For years that technology lived only in mowers costing well over a thousand pounds. The i105E brings it down to a price that ordinary households can actually justify.
We have pored over UK owner feedback, expert lab tests and the manufacturer's own specifications to put together this in-depth review. The question we keep coming back to is simple: has Segway genuinely cracked affordable wire-free mowing, or are there compromises hiding behind the clever marketing? Here is our honest verdict.
Who Is It For?
The Navimow i105E is aimed squarely at homeowners with a small-to-medium garden — Segway recommends up to 500m², with a maximum of around 600m² — who want a tidy, well-kept lawn without the weekly chore of mowing it themselves. If your lawn is broadly open with reasonable sky visibility and you are comfortable using a smartphone app, this is very much a product built with you in mind.
It is also a strong fit for anyone who has been put off traditional robot mowers by the dreaded boundary-wire installation. Burying or pegging hundreds of metres of cable around a garden is fiddly, time-consuming and easy to damage with a fork or aerator later on. The i105E does away with all of that.
It is less suited to very large estates, heavily wooded plots where satellite signal struggles, or gardens chopped into many narrow, awkward sections. For those situations a higher-spec model with all-wheel drive and a larger battery makes more sense — our Mammotion LUBA 2 AWD 5000 review covers exactly that kind of premium, large-garden machine.
Key Features
At the heart of the i105E sits Segway's Exact Fusion Locating System (EFLS) 2.0. In plain English, this fuses RTK satellite positioning with a camera-based vision system to work out precisely where the mower is, to within a few centimetres. A small antenna, mounted either on the supplied stake or a wall, talks to the mower and keeps it on track.
The clever part is VisionFence. Where the satellite signal momentarily dips — under a tree canopy, beside the house, or near a tall fence — the onboard camera takes over as a visual guide, so the mower keeps working rather than grinding to a halt. It also doubles as obstacle avoidance, helping the mower recognise and steer around garden furniture, toys, hosepipes and pets.
Other headline specifications worth knowing:
- Coverage: recommended 500m², maximum around 600m²
- Battery: 2.55Ah, giving up to roughly 60 minutes of mowing per charge, with a full recharge in about 90 minutes
- Cutting height: adjustable from 20mm to 60mm via a manual dial on top
- Slope handling: up to 30% gradient (about 17 degrees)
- Noise: a hushed 58dB(A)
- Weather resistance: IP66 rating, so rain is no problem
- Weight: a manageable 10.9kg
The whole experience is run through the Navimow app, where you map the lawn, draw virtual boundaries and no-go zones, set mowing schedules, manage multiple zones and even track the mower's location on a map for peace of mind.
What We Like
The biggest win is exactly what Segway promises: no boundary wire. Setting up the i105E is largely a matter of charging it, positioning the antenna for a clear view of the sky, and then walking the mower around the perimeter — or letting the AI-assisted mapping do much of the heavy lifting — to define where it can and cannot go. UK owners consistently report getting up and running in well under an hour, a world away from the weekend-long cable-laying rituals of older mowers.
The cutting pattern is the next standout. Rather than the random, pinball-style bouncing of cheaper wire-based mowers, the i105E mows in neat, overlapping parallel stripes. The result is a more even, more professional-looking finish and, crucially, more efficient coverage — it is not endlessly re-cutting the same patch while ignoring another.
It is also remarkably quiet. At 58dB(A) it is quieter than a normal conversation, which means you can schedule it for early morning or late evening without irritating the neighbours or drowning out the birdsong. Combine that with the IP66 weather rating and you have a machine that quietly gets on with the job in almost any British weather.
Finally, the app deserves praise. It is genuinely approachable, with step-by-step guidance through antenna placement, mapping and scheduling. Multi-zone management lets you treat a front and back garden as separate areas with their own schedules, and the location tracking is reassuring given the mower spends its life unattended outdoors.
What Could Be Better
No robot mower is flawless, and the i105E has a few honest limitations worth flagging before you buy.
The most commonly reported gripe relates to satellite signal. Because the system leans on RTK positioning, gardens with heavy tree cover, tall walls close to the lawn, or lots of overhanging structures can occasionally confuse it. When the signal drops and VisionFence cannot fully compensate, owners describe the mower deviating from its path, pausing unexpectedly, or failing to finish a zone. VisionFence mitigates this far better than older wire-free models managed, but it is not infallible. If your garden is genuinely shaded by mature trees, do consider this carefully.
The coverage area is the other key consideration. A recommended 500m² is plenty for a typical family garden, but larger plots will leave the mower struggling to keep up within its battery window, and you may find it cannot complete everything before needing a charge. Buyers with bigger lawns should look at higher-capacity models — our Husqvarna Automower 430XH review and the Worx Landroid review both cover alternatives, though both rely on a boundary wire.
Two smaller niggles round things out. Initial mapping needs patience — rushing the antenna placement is the single biggest cause of unreliable behaviour, so it pays to take your time getting a clear line of sight to the sky. And the cutting height is set by a manual dial rather than through the app, so adjusting it means a quick trip down the garden rather than a tap on your phone.
Value for Money
This is where the i105E really shines. Its recommended retail price is around £949, but in practice it frequently sells on Amazon UK for under £700 — at the time of writing it was listed at around £699. For a genuinely wire-free RTK mower with AI obstacle avoidance, that represents a significant shift in what this technology costs.
To put it in context, wire-free mowers were comfortably four-figure purchases only a couple of years ago, and many still are. The i105E delivers the headline features that used to justify those prices — satellite navigation, vision-based fencing, tidy striping and a polished app — at a price that competes with mid-range wire-based mowers. When you factor in the time and frustration saved by skipping cable installation, the value proposition is genuinely compelling for the right-sized garden.
We always recommend checking the live price rather than relying on any figure here, as Amazon pricing moves around. You can check the current price on Amazon before deciding. If you are still weighing up whether a robot mower is right for you at all, our guide on whether robot lawnmowers are worth it in the UK walks through the running costs and practicalities in detail. For comparison with a wire-based budget option, the Gardena Sileno City review is also worth a read.
Verdict
The Segway Navimow i105E is one of the easiest robot mowers we have looked at to recommend — provided your garden fits its profile. It takes the genuinely useful idea of wire-free mowing, wraps it in sensible AI navigation, and sells it at a price that no longer feels like a luxury. For a small-to-medium lawn with reasonable sky visibility, it delivers a tidy, quiet, hands-off mowing experience that lives up to the promise.
The caveats are real but manageable: it is not the machine for heavily shaded or very large gardens, and it rewards a careful initial setup. Get those conditions right, though, and the i105E quietly hands you back your weekends. With a solid 4.4-star rating from thousands of UK buyers and a price that regularly dips under £700, it earns a confident recommendation and a 4.4 out of 5 from us.
Related Reading
- 🌿 Are Robot Lawnmowers Worth It? UK 2026 Guide — Running costs and practicalities explained
- 🤖 Mammotion LUBA 2 AWD 5000 Review — The premium wire-free option for big gardens
- 🏡 Husqvarna Automower 430XH Review — The established boundary-wire alternative
- ⚙️ Worx Landroid WR141E Review — A compact wire-based mower for smaller plots
- 🌱 Gardena Sileno City Review — Budget-friendly wire-based mowing