Best Robot Lawn Mower Without Perimeter Wire (2026)

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Which wire-free, in one paragraph

Nearly every robot mower worth buying in 2026 works without a perimeter wire, so the question is which kind of wire-free. Small sunny yard: the Segway Navimow i105N at $799. A half acre with trees wants the Mova Lidax Ultra 2000 at $1,199, and a large shaded lot the Ecovacs GOAT A3000 LiDAR Pro. Large and open, the Navimow X350. Slopes, the Mammotion LUBA 3 AWD 3000. Each pick is matched to a navigation type below, because “wire-free” covers three different technologies and buying the wrong one for the yard is the most common mistake in the owner forums.

Boundary wire was the standard for twenty years and it was the part everyone hated: a weekend on your knees staking cable, then a break every time someone edged the lawn. It is gone from almost every mower launched since 2024. Three different systems replaced it, and they are not interchangeable. This page explains the three plainly, says which one a given yard needs, then gives six picks across small, medium and large lawns plus a shady-yard option. Specs and October 2026 prices come from our 94-model database. The RTK vs LiDAR vs vision guide goes deeper.

Wire-free means one of three things

RTK is GPS with a correction. The mower listens to satellites and also to a fixed antenna in your yard (or a cellular correction service), which brings its position error from a few meters down to an inch or two. Think of it as a GPS that also checks with a second witness standing in a known spot. It is cheap, it is accurate, and it fails under tree canopy, next to tall walls and under roof overhangs because the satellites get blocked. Navimow, Husqvarna, Greenworks and Sunseeker build mainly on RTK. Our RTK signal lost page covers the fixes when it drops.

Vision means cameras. A vision-only mower learns what grass looks like and stays on it. No antenna. It is the simplest setup and it does not care about sky view. The limits are light (most vision mowers go home at dusk), grass type (eufy says its E15 is not for St. Augustine or dense Zoysia) and crossing hard surfaces. eufy and the Mammotion YUKA mini are the vision-only mowers in our database.

LiDAR is a spinning laser that maps the yard in 3D, the way a robot vacuum with a turret maps a living room. It works under trees, at night and next to buildings, with no antenna. It costs more. The mowers also tend to drive more cautiously. Mova, Dreame, Ecovacs and the newer Navimow i215 use LiDAR as the main system, while Mammotion’s LUBA 3 and Navimow’s H2 fuse LiDAR with RTK so each covers the other’s blind spot.

Which to choose comes down to one test from the guide: stand in the middle of the lawn and look up. Mostly sky, buy RTK. Mostly leaves, buy LiDAR or a fusion mower. Small, flat, fenced and sunny, vision-only is the cheapest way in. The robot mower hub has the full decision tree.

At a glance

Model	Best for	Navigation	Rated area	Max slope	Street price (Oct 2026)	FCC status	Verdict
Segway Navimow i105N	Small sunny yard, under 1/8 acre	RTK + vision	0.12 acre	30%	$799 (MSRP $999)	Authorized before list	Buy on sale
Greenworks AiMowbot C20Z	Half acre, open, on a budget	RTK + vision	0.5 acre	45%	$1,199.99 (MSRP $1,299.99)	Authorized before list	Wait
Mova Lidax Ultra 2000	Half acre with trees (shady-yard pick)	LiDAR + vision	0.5 acre	45%	$1,199 (MSRP $1,799)	Authorized before list	Buy on sale
Ecovacs GOAT A3000 LiDAR Pro	Up to 3/4 acre, shaded	LiDAR + vision	0.74 acre	50%	$2,499.99	Authorized before list	Buy
Segway Navimow X350	1 to 1.5 acres, open	RTK + vision	1.5 acres	50%	$2,799 (MSRP $3,499)	Authorized before list	Buy on sale
Mammotion LUBA 3 AWD 3000	Slopes, mixed sun and shade	LiDAR + RTK + vision	0.74 acre	80%	$2,109 (MSRP $2,799)	Not verified	Buy on sale

From mowers.csv, read off each US store on October 17, 2026. Sale prices will change. FCC terms explained in the Covered List tracker.

Best for a small sunny yard

Segway Navimow i105N

The i105N is the mower that made wire-free affordable, and two years on it is still the one to beat under $1,000. It is rated for 1/8 acre (500 square meters), uses RTK with a camera to fill gaps, cuts a 7.1-inch path from 2 to 3.6 inches, runs about an hour per charge and recharges in 90 minutes. The October 2026 price was $799 against a $999 MSRP, though Navimow’s own store showed it sold out that week.

Consumer Reports has it in its lab-tested robotic mower ratings, where the public listing showed it at the top of the tested group, with the Ecovacs GOAT O1000 RTK just behind. Reviewed calls it its value pick. Android Police scored it 7.5 out of 10. It praised positioning and obstacle detection but noted the mower does not always run parallel lines, leaves small unmowed strips, and has a manual height dial instead of app control. Owners on Trustpilot mostly describe an easy setup and a mower that stays inside its map. A minority report edge and obstacle misses.

What to watch: 30 percent is the lowest slope rating on this page. It is RTK, so it needs sky. A small yard boxed in by a two-story house and mature oaks is the wrong place for it. 4G needs a $119.99 module. FCC status: authorized before the July 2026 list.

Rated area	0.12 acre (1/8 acre)
Navigation	RTK + camera, antenna included
Max slope	30%
Cutting width / height	7.1 in / 2 to 3.6 in (manual dial)
Runtime / charge	60 min / 90 min
Noise / weight	58 dB / 24 lb
Warranty	3 years

or at Navimow Check price at Amazon

Best half-acre RTK mower on a budget

Greenworks AiMowbot C20Z

Greenworks is the only brand selling a half-acre wire-free mower under $1,200 that was on the US market before 2026. The C20Z is the four-wheel version of its C20, rated for 0.5 acre and 45 percent slopes, with electric height adjustment from 0.75 to 3.5 inches, a 54 dB noise rating (the quietest in our database) and a 3-year warranty. It was $1,199.99 in October 2026 against a $1,299.99 MSRP.

The spec sheet is good. The owner record is thin and not flattering. The three-wheel C20 showed a 3.0 out of 5 rating across 31 reviews on Greenworks’ own store in October 2026, and we found no major publication that has tested the C20Z. Hence the Wait badge. The price is right and the slope rating is right. The evidence is not in yet.

What to watch: RTK, so the same sky rules as the Navimow apply. Greenworks lists 4G. It also sells through 14,000 stores, which helps with returns. FCC status: authorized before the list.

Rated area	0.5 acre
Navigation	RTK + camera (RTKVision 2.0)
Max slope	45%
Cutting width / height	8.0 in / 0.75 to 3.5 in (electric)
Noise	54 dB
Connectivity	Wi-Fi, Bluetooth, 4G
Warranty	3 years

or at Greenworks Check price at Amazon

Shady-yard pick, up to a half acre

Mova Lidax Ultra 2000

This is the mower for the yard where RTK fails: trees, a tall fence, the house on two sides. The Lidax Ultra 2000 navigates with a 360-degree LiDAR and a camera. There is no antenna. It is rated for 0.5 acre and 45 percent slopes, cuts 7.9 inches wide from 1.2 to 3.9 inches, and carries a 180 Wh battery good for 70 to 90 minutes. The October 2026 price was $1,199 against a $1,799 MSRP. LiDAR, priced like RTK.

Wirecutter made it a budget pick under the heading “smart but slow,” calling it the smartest robot mower it tested and noting it does not need a view of the sky. WIRED lists it among the mowers it tested and liked. Gear Diary’s review of the smaller Ultra 1000, which shares the navigation, rated it 4.5 and singled out very straight mowing lines and strong manual-mapping control.

What to watch: the “slow” in Wirecutter’s heading. LiDAR mowers drive cautiously, and a half-acre rating on a 70 to 90 minute battery means it will be out most of the day. Mova is a sister brand of Dreame and a 2025 arrival in the US. The parts and support record is short. FCC status: authorized before the July 2026 list.

Rated area	0.5 acre
Navigation	360° LiDAR + camera, no antenna
Max slope	45%
Cutting width / height	7.9 in / 1.2 to 3.9 in
Battery / runtime	180 Wh / 70 to 90 min
Weight	30.2 lb
Warranty	3 years

or at Mova Check price at Amazon

Best for a large shaded lot

Ecovacs GOAT A3000 LiDAR Pro

The A3000 LiDAR Pro is the biggest LiDAR-only mower in our database that was authorized before the FCC list. It is rated for 3/4 acre, cuts a 13-inch path with two discs, climbs 50 percent (27 degree) slopes, and carries a built-in string trimmer for edges. The 240 Wh battery runs 160 minutes and charges in 70. Price was $2,499.99 in October 2026. No sale.

Reviewed names it one of its two favorite robot mowers. The non-Pro A3000 that preceded it drew mixed notes: PCMag gave it 3.5 of 5 (speedy, wide cut, quiet, but not the best at mapping and missed grass on corners), and PCWorld praised the power and app while flagging poor navigation through narrow passages and some slope and cliff detection issues, with a warning that the torque can tear up a yard if something goes wrong. The Pro adds a second LiDAR and the trimmer. We have not seen a published test that re-checks the narrow-passage complaint on it.

What to watch: the trimmer runs at 82 dB, loud for a robot mower, against 62 dB for the main body. Ecovacs lists no cellular connection, so you are on Wi-Fi range for remote control. Rear-wheel drive. FCC status: authorized for US sale before the July 2026 list.

Rated area	0.74 acre (3/4 acre)
Navigation	360° LiDAR + 3D ToF + camera, no antenna
Max slope	50% (27°)
Cutting width / height	13 in / 1.18 to 3.54 in
Battery / runtime / charge	240 Wh / 160 min / 70 min
Noise	62 dB body, 82 dB trimmer
Connectivity	Wi-Fi, Bluetooth (no 4G listed)

or at Ecovacs Check price at Amazon

Best for a large open lot

Segway Navimow X350

For an acre or more of open grass, RTK is still the cheapest way to get an accurate map, and the X350 is the RTK mower the big publications keep landing on. It is rated for 1.5 acres with a 200-minute runtime, 80-minute charge, 9.3-inch cut and 50 percent slope limit. The October 2026 price was $2,799 against a $3,499 MSRP. Our 1-acre page covers it in more depth.

Business Insider names it best robot mower. ZDNET logged 92,700 square feet over 67 runs with a single mishap and called it the fastest, most reliable robot mower its reviewer had tried. PCWorld’s one caveat: fine for 1.5 acres “as long as they’re relatively flat.”

What to watch: it is RTK and rear-wheel drive. Open sky and modest slopes. If the acre has a wooded half, the LUBA 3 below is the better buy. FCC status: authorized for US sale before the July 2026 list.

Rated area	1.5 acres
Navigation	RTK + 3 cameras, antenna included
Max slope	50%
Cutting width / height	9.3 in / 2 to 4 in
Runtime / charge	200 min / 80 min
Noise / weight	60 dB / 43.7 lb
Warranty	3 years

Check price at Navimow

Best for slopes and mixed sun and shade

Mammotion LUBA 3 AWD 3000

The LUBA 3 is the fusion option: a 360-degree LiDAR on top, network RTK through its 4G modem, and two cameras, so it keeps a fix under the trees and in the open. All-wheel drive and an 80 percent slope rating make it the choice when the yard tilts. It is rated for 3/4 acre, cuts 15.7 inches wide, and was $2,109 in October 2026 against a $2,799 MSRP, the deepest discount on this page.

Reviewed names the 3000S one of its two favorites. TechRadar and New Atlas both came away impressed with the slope work, with New Atlas measuring about 2,276 square feet per hour at half speed. The owner side is noisier. On r/mammotion and r/MammotionTechnology, 2026 threads complain about firmware updates that changed turning behavior and tore turf, and about maps breaking after an update. Mammotion’s own review page has one recent owner calling the app “pretty weak” and another describing a three-week learning curve. Praise for the climbing is just as common. Both are real.

What to watch: it is a 2026 model and we could not verify its FCC Covered List status; see the tracker. The authorized predecessor, the LUBA 2 AWD 3000X, was listed at $2,599 and marked superseded. It is the loudest mower here at 70 dB or less, and the base station has no roof unless you pay about $200 more.

Rated area	0.74 acre
Navigation	360° LiDAR + network RTK + dual cameras
Max slope	80%, AWD
Cutting width / height	15.7 in / 1.0 to 2.7 in (H version 2.2 to 4.0)
Battery	259 Wh
Noise / weight	70 dB or less / 41 lb
Warranty	3 years, 3 years of 4G included

or at Mammotion Check price at Amazon

Who should skip wire-free, and what we did not pick

Almost nobody should buy a boundary-wire mower new in 2026. The one case: a yard with no sky view, deep shade and a tight budget, where the only wire-free options are LiDAR mowers starting around $1,000. The Greenworks Optimow and Worx Landroid wire models were mostly sold out or on legacy pages in October 2026 anyway. The other reason to skip is grass height. Every mower here wants the lawn under about 4 inches before the first run.

Close calls:

Navimow i215 LiDAR ($1,329, 0.37 acre): a Wirecutter budget pick and a good shady-yard mower, but a 2026 model with unverified FCC status. The Mova covers more area for less.
Worx Landroid Vision Cloud WR340 ($2,299.99, 1 acre): Wirecutter’s top pick for average yards. It was “coming soon” on Worx’s US site in October 2026 with unverified FCC status.
eufy E15 ($1,299.99, 0.2 acre, vision-only): the simplest setup in our database, authorized before the list, right for a small flat fenced yard in full sun. Excluded here because eufy rules it out for St. Augustine and dense Zoysia, and it stops at dusk.
Ecovacs GOAT O1000 RTK ($999.99, 1/4 acre): Consumer Reports’ second-ranked robotic mower, twice the i105N’s rated area. Covered on the under $1,000 page.
Husqvarna 410 iQ ($2,599.99, 0.5 acre): dealer support and a wire fallback, at $1,400 more than the Mova for the same rated area.

FAQ

Do wire-free mowers still need something installed in the yard?

RTK mowers need an antenna on a pole or wall with clear sky, plus the charging dock. LiDAR and vision mowers need only the dock. Fusion mowers like the LUBA 3 can skip the antenna where network RTK coverage exists.

Can a wire-free mower cross a driveway to a second lawn?

RTK and LiDAR mowers can be given a path across hard surfaces with blades off; the lawn size guide covers how zones and channels count against the rating. Vision-only mowers are the ones most likely to refuse to leave the grass.

What happens when an RTK mower loses signal?

It stops. Some models coast on their cameras for a short distance first. Antenna height and placement fix most cases, and our RTK signal lost page walks through them in order. If the real problem is a wooded yard, the fix is a LiDAR mower.

Is a 2026 model with unverified FCC status safe to buy?

The July 2026 Covered List blocks new authorizations for foreign-made robotic devices; it does not pull authorized mowers off shelves or turn off ones already sold. A mower on sale at a US retailer has an authorization. What we cannot verify for 2026 launches is the exact timing, and that is what the tracker follows.