For fifteen years the boundary wire was the price of owning a robot lawn mower: an afternoon on your knees hammering in pegs, then a hunt with a fault finder every time someone nicked the wire with a strimmer. In 2026 most new launches work without one. But a robot lawn mower without a boundary wire isn't one technology, and picking the wrong kind of navigation for your garden is the main reason these mowers get sent back.
This guide separates the three systems wire-free mowers use (RTK satellite positioning, LiDAR and camera vision), explains which British gardens suit each, and recommends specific models listed on Amazon UK. Our picks are based on specs, manufacturer data and verified buyer reviews; we don't quote prices because they change daily.
| Model | Best for | |
|---|---|---|
| Mammotion LUBA 3 AWD 3000 | Large plots, steep banks | Check price |
| ECOVACS GOAT A1600 LiDAR PRO | Tree-lined gardens up to 1,600 m² | Check price |
| Dreame A2 1200 | Up to 1,200 m², neat edges | Check price |
| Segway Navimow i105E | Open lawns around 500 m² | Check price |
| Worx Landroid Vision Cloud WR305E | Up to 500 m², no base station | Check price |
| Segway Navimow i205 AWD | 500 m² with slopes | Check price |
| Mammotion YUKA mini 2 500 | Small, shady gardens | Check price |
| MOVA ViAX 250 | Terraces with 60 cm side passages | Check price |
What "wire-free" really means
A traditional robot knows where the lawn ends because a buried wire carries a signal it can detect. A wire-free mower has to know its own position to within a few centimetres so it can respect a virtual boundary you draw in an app. There are three ways to do that:
- RTK (GNSS with correction): the mower receives satellite signals plus a correction from a reference antenna in your garden or, with network RTK, from a network of base stations over the internet. Centimetre accuracy under open sky.
- LiDAR: a spinning laser measures distances to build a 3D map of walls, trunks, hedges and the house, and locates the mower within it. It doesn't look at the sky, so shade and tall buildings don't bother it.
- Vision: cameras recognise the lawn edge, obstacles and landmarks. The cheapest option, and the most dependent on light.
The best models combine two or three. More sources mean more stable navigation in awkward spots, and a higher price.
Which system your garden needs
| Your garden | Best fit | Why |
|---|---|---|
| Open lawn, few trees | RTK (antenna or network) | Highest accuracy under open sky at the lowest cost |
| Mature trees, tall hedges or a house that blocks the sky | LiDAR, or LiDAR + vision | Doesn't depend on satellites, which degrade under canopies and next to walls |
| Small lawn, narrow side return | Vision only | No installation and fits through 60 cm gaps |
| Large plot with steep banks | Multi-sensor + AWD | Backup navigation and traction stop it getting stuck |
A quick test: open a phone app that shows GPS accuracy and walk round the lawn. If accuracy drops to several metres under your trees or tight against the house, an RTK-only mower will struggle there too. We explain it in depth in RTK vs LiDAR vs vision.
The wire-free robot mowers we recommend
Ordered from most capable to simplest. All are listed on Amazon UK; the specs are those declared by each manufacturer.
1. Mammotion LUBA 3 AWD 3000
Who it's for: Big gardens with serious gradients, trees and separate lawn areas, such as a rural property or a large detached plot.
- Wire-free
- Tri-Fusion navigation: 360° LiDAR + NetRTK + dual-camera AI vision
- Four motors: slopes up to 80% (38.6°), according to Mammotion
- Adaptive suspension: climbs obstacles up to 50 mm
- Two 165 W cutting motors
- Up to 30 mowing zones plus no-go areas
- The most capable mower here on steep, broken ground
- Three navigation systems that cover for each other
- Built for large plots (the 3000 version)
- Overkill for a small, flat lawn
- A big machine: measure side passages and gates first
It is the only mower here running all three navigation systems at once: LiDAR maps the garden in 3D, network RTK corrects the position without an antenna of your own, and twin cameras pick out obstacles. If one struggles (dense shade, heavy cloud cover over tall buildings), the others hold the line. Its four-wheel drive is designed for banks that would leave a two-wheel-drive robot spinning on wet grass.
2. ECOVACS GOAT A1600 LiDAR PRO
Who it's for: Large gardens with mature trees, tall leylandii hedges or neighbouring houses that block the sky.
- Wire-free, no RTK base station
- Dual LiDAR + AI vision, 2 cm accuracy (Ecovacs figure)
- Rated for 1,600 m² (about 17,200 sq ft)
- Slopes up to 50%, obstacles up to 4 cm
- TruEdge string trimmer for lawn edges
- Cutting height 3-9 cm, set in the app
- Doesn't rely on satellites: ideal under trees and beside tall houses
- Trims edges, the weak spot of almost every robot
- Set-up in around 15 minutes, according to Ecovacs
- Trimmer line is one more consumable
- More mower than you need for under 500 m²
It ignores satellites entirely, navigating by twin LiDAR and cameras, so GNSS signal quality is irrelevant. Its other strength is the string trimmer, which deals with the strip along walls and borders that most robots leave behind. Ecovacs says the navigation also works in the dark; in the UK, we'd still schedule it for daylight only to protect hedgehogs.
3. Dreame A2 1200
Who it's for: Anyone wanting no wire, no antenna and a properly finished edge on a medium-to-large lawn.
- Wire-free, no RTK
- OmniSense 2.0: 3D sensor + HDR camera, 360° × 59° field of view, up to 70 m range
- Rated for 1,200 m²
- EdgeMaster: cuts to within 5 cm of the edge
- Slopes up to 26.5°, according to Dreame
- 1080p camera that doubles as garden surveillance
- LiDAR-style navigation that doesn't need open sky
- Very tidy edges for a robot
- Doubles as a security camera
- Not all-wheel drive: for wet, steep banks an AWD model is safer
- Many features live in the Dreamehome app
4. Segway Navimow i105E
Who it's for: Open lawns with a good view of the sky.
- Wire-free
- RTK + vision (EFLS 2.0), centimetre-level accuracy
- Recommended for around 500 m² on the UK listing
- GNSS antenna kit included
- 140° camera recognising 20+ obstacle types
- AI-assisted mapping from your phone
- One of the most affordable wire-free mowers from an established brand
- Guided mapping by phone: no pegs, no wire
- Camera backs up navigation near trees and in passages
- Needs an antenna with a clear view of the sky
- Not built for big lawns
The most sensible way into wire-free from an established brand. It uses RTK with its own antenna, backed by a 140° camera for edges and obstacles. It works best on open lawns; if yours is surrounded by tall trees, look at a LiDAR model first.
5. Worx Landroid Vision Cloud WR305E
Who it's for: Lawns up to 500 m² where you want neither wire nor antenna.
- Wire-free
- For lawns up to 500 m²
- Cloud RTK + V-SLAM vision: no RTK base station to put up
- AI obstacle avoidance (hoses, toys, tools)
- Charging station can sit in shade
- Removable 20V PowerShare battery
- No wire and no base station: very quick to set up
- Network RTK plus vision for shady corners
- Battery shared with Worx 20V garden tools
- 500 m² maximum
- Needs a connection for the Cloud RTK correction
6. Segway Navimow i205 AWD
Who it's for: Medium lawns with slopes up to 45%.
- Wire-free
- All-wheel drive for slopes up to 45%
- EFLS network RTK + vision: no RTK antenna of its own
- Recommended for 500 m²
- Up to 20 mowing zones
- Cutting height 2-6 cm, cutting width 18 cm
- AWD with stability control for uneven ground
- No antenna: RTK correction arrives over the network
- Turns on the spot without scuffing the turf
- Modest recommended area for the price
- Relies on mobile/Wi-Fi coverage for network RTK
7. Mammotion YUKA mini 2 500
Who it's for: Small and medium lawns with narrow passages and shade, where satellite signal is poor.
- Wire-free, no RTK: vision only, three cameras
- Slopes up to 45% (24°)
- 98 Wh battery: up to 2 hours and roughly 200 m² per charge
- Recognises 300+ object types
- DropMow mode: mow without mapping first
- Up to 10 saved maps
- No antenna or signal needed: copes under trees and down side passages
- Next to no installation
- Good grip on slopes for its size
- Depends on light: less reliable at dusk
- Small battery: several charges for 500 m²
8. MOVA ViAX 250
Who it's for: Terraced and semi-detached gardens with a narrow side return.
- Wire-free: no RTK, no posts, dual-camera UltraEyes 1.0 vision
- Fits through 60 cm passages
- Slopes up to 40%, obstacles up to 4 cm
- Avoids 300+ obstacle types
- Two-map support (two lawns or zones)
- Anti-theft alerts; GPS tracking needs an optional module
- The simplest way to go wire-free on a small lawn
- Fits down the side return of a terraced or semi-detached house
- Person and pet detection
- Vision only: less dependable in poor light
- GPS tracking is an optional extra
Five checks before you buy a wire-free mower
- Real area, not the maximum. Ratings assume long working days. If your lawn is near the limit, go up a size.
- Narrow passages. Measure the tightest gap between lawn areas. Some mowers need close to a metre to pass safely.
- Maximum slope. Quoted in % (100% = 45°). A slope that looks gentle can exceed 30%. If you have a bank, read our guide to robot mowers for slopes.
- Charging station and antenna position. The base needs an outdoor socket (installed to UK wiring regulations, ideally on an RCD-protected circuit); an RTK antenna needs open sky. Network RTK and LiDAR models skip the antenna.
- Wi-Fi or 4G in the garden. The app, firmware updates and network RTK depend on it. An outdoor mesh node or repeater is usually enough.
What wire-free still doesn't solve
It isn't all upside. Wire-free mowers lean much more on software: updates that change behaviour, apps that need an account and connection, and maps that sometimes need redoing after heavy pruning changes the visual landmarks. Edges remain the weak spot too: unless the mower has a trimmer or an offset blade, you'll still have a strip of a few centimetres to tidy with a strimmer.
If your lawn is small, rectangular and uncluttered, a wired robot is still cheaper and very reliable. We compare both in boundary wire vs wire-free.
Theft and safety: more important without a wire
A wire-free robot is easier to carry off and reuse if it lacks proper protection, and garden theft is a real problem in the UK. Prioritise models with a lift alarm, PIN or account lock and, if your front garden faces the street, GPS tracking (on some models this needs a module or subscription). Camera-based person and pet detection helps too: the mower stops before it reaches them, not after. And whatever the spec sheet says about night-time navigation, keep mowing to daylight hours for the sake of hedgehogs.
See wire-free robot mowers on Amazon →
Keep reading
RTK vs LiDAR vs vision: which navigation? → Boundary wire vs wire-free → Best robot mowers for slopes →Frequently asked questions
Do wire-free robot mowers work under trees?
It depends on their navigation. RTK-only models lose accuracy under dense canopies and beside tall houses. Models that add LiDAR or cameras, such as the ECOVACS GOAT A1600 LiDAR PRO or the Dreame A2, use their surroundings rather than the sky and cope better in leafy gardens.
Do I have to install an antenna?
Only with RTK models that use their own base station, such as the Segway Navimow i105E, which includes its GNSS antenna. Network RTK, LiDAR and vision-only models need no antenna in the garden.
Is a wire-free mower more expensive to run?
Physical upkeep is the same: blades, cleaning and eventually a battery. There is no wire to repair, but you depend more on the app and a connection, and some tracking services require a subscription.
What lawn size justifies going wire-free?
There is no minimum. Models such as the MOVA ViAX 250 or YUKA mini 2 500 are designed for small gardens. What justifies wire-free is the lawn's shape: separate areas, lots of beds or a layout you change often.
Can a wire-free robot mower escape the garden?
With a properly drawn map it keeps within a few centimetres of the virtual boundary, and good models stop if their signal degrades rather than carrying on blind. Even so, avoid a boundary that runs right up to a pond, a drive onto the road or an unprotected drop.