Robot Lawn Mowers: The Tin Man Guide (2026)

This is the hub page for robot mowers on Tin Man Reviews. It covers what these machines are and are not, how the three navigation systems work in plain language, how to size one for an American yard, which brands matter in the US right now, what they cost, the FCC situation that is reshaping the market, and when to buy. Every spec and price below traces to a manufacturer page or a cited publication. We do not test mowers in a lab. We read the spec sheets, the owner forums, and the people who do test, and we show our work.

What a robot mower is, and what it is not

Think of a Roomba for grass. The mower lives outside on a charging dock, drives itself around the lawn on a schedule, and cuts a small amount off the top of the grass each pass. It never bags clippings. There are none to speak of. The cut pieces are tiny and fall back into the turf as mulch.

That daily-trim model is the whole point, and it is also where expectations go wrong. A robot mower is not a riding mower you do not have to sit on. Consumer Reports’ lab notes that robots cut a narrow swath and take far longer than a walk-behind to cover the same yard (CR). The cutting width on most residential models runs 18 to 24 cm (7 to 9.5 inches). A few AWD models from Mammotion, Mova, Lymow and Navimow’s X4 series use dual discs and reach 40 cm (about 16 inches), which is still narrower than a 21-inch push mower.

Three other things it is not:

• It is not a first-cut tool. Nearly every maker says to mow the lawn down to a normal height before the robot’s first run. eufy’s setup page, for example, says to keep grass under 9 cm (3.5 in) before mapping (eufy).
• It is not an edger. CR found that many models leave grass along fences and walls, and some owners still run a string trimmer every couple of weeks. A few 2026 models (Ecovacs’ TruEdge trimmer, Dreame’s edge discs, Roborock’s PreciEdge module) are trying to close that gap.
• It is not a tall-grass machine. CR noted two of nine tested models could not cut above 3 inches. If you keep fescue or St. Augustine at 3.5 to 4 inches, check the max cutting height column before you fall in love with a price.

The three navigation families, in plain words

How a mower knows where it is matters more than any other spec. It determines whether the mower stays in your yard, whether it finishes, and whether it works under your trees. We cover this in depth in RTK vs LiDAR vs Vision. Here is the short version.

Boundary wire (the old way)

A wire is buried or pegged around the lawn’s edge. The mower senses the wire and bounces around inside it in a random pattern. It is cheap. It works in deep shade, and it has nothing to do with satellites. The downsides are the install (hours of pegging wire) and the random pattern, which takes longer to cover a yard. Husqvarna still sells wired Automowers in the US, and Worx and Greenworks wired models are on clearance. Everything else on this page is wire-free.

RTK (satellite plus a second witness)

RTK stands for real-time kinematic. Regular GPS in your phone is good to a few meters. RTK adds a fixed antenna, either a reference station in your yard or a networked one your mower reaches over the internet, that watches the same satellites from a known spot and tells the mower how far off the signal is. It is GPS that also listens to a second witness. The result is positioning good to an inch or two, which is why RTK mowers can cut straight parallel lines and stop exactly at a virtual boundary.

The weakness is the sky. If trees, a roofline or a tall fence block the mower’s or the antenna’s view of the satellites, the fix degrades and the mower stops or wanders. Navimow’s support page says the antenna needs more than a 110° unobstructed view of the sky and at least 6.6 ft of clearance from walls, dense trees and houses (Navimow Academy). Shade is the most common complaint about RTK mowers across owner forums. See our RTK signal lost fixes page.

Vision (cameras)

Vision mowers use one or more cameras and an onboard model to tell grass from not-grass. They need no antenna and no wire, so setup is the simplest of the three. The trade-off is that cameras need light and clear edges. eufy’s E15 spec page says it mows only from half an hour after sunrise to half an hour before sunset and returns home in low light (eufy). Pure-vision models also tend to carry smaller area ratings, 0.12 to 0.3 acres for most of them.

LiDAR (a spinning laser)

LiDAR fires laser pulses and times their return to build a 3D picture of the yard. It does not care about satellites or sunlight, so it is the family that works best under heavy tree cover and at dusk. It costs more. It is also the newest of the three, so there is less owner history. Ecovacs’ own LiDAR explainer concedes that fog and heavy rain can scatter the laser (Ecovacs).

The 2026 trend: fusion

Most new premium mowers now combine two or three of these. Mammotion’s LUBA 3 AWD 3000 and 5000 use LiDAR, network RTK and dual cameras. Navimow’s H2 series does the same. Roborock, Dreame and Mova pair LiDAR with cameras and skip RTK entirely. Fusion costs more but removes the single point of failure that frustrates owners of first-generation RTK mowers.

How to size one (the acre problem)

Most of these mowers are designed in Europe or China and rated in square meters. The model number is usually the rating: a “3000” covers about 3,000 m², which is 0.74 acres. A “5000” is 1.24 acres. A “1000” is a quarter acre. Americans think in acres and the brands know it, so the US pages translate, but the model numbers stick.

Two rules we use everywhere on this site:

1. Rated area is a weekly capacity, not daily coverage. TheRobotsHQ puts it plainly: a mower rated for 1.5 acres may cut about an acre per day and make up the rest over the week. Navimow’s X450 “carries a 1.5-acre rating but is quoted at roughly an acre of daily cutting” (TheRobotsHQ).
2. Leave 20 to 30 percent headroom. Slopes, trees, flower beds and zones all cost time. A half-acre lawn with a slope and a dog run is a 0.62 to 0.75 acre job for the mower.

The full conversion table and a model-by-model sizing chart for 1/8 acre through 3+ acres is in our Robot Mower Lawn Size Guide.

The brands that matter in the US (October 2026)

Fourteen brands sell wire-free robot mowers in the US right now. One line on each, with the thing to know before you shop.

• Segway Navimow. The broadest lineup, from the $799 i105N for 1/8 acre to the $4,499 X390 for 2.5 acres, plus 2026 AWD (i2, X4), LiDAR (i215) and fusion (H2) models. Several SKUs were sold out in October 2026 (Navimow).
• Mammotion. The AWD specialist. LUBA 3 AWD (LiDAR + RTK + vision, 80% slope rating) is the current flagship; YUKA adds a sweeper; LUBA mini 2 covers small AWD yards (Mammotion).
• Husqvarna. The incumbent. US lineup is the iQ series (410, 420, 440, 435 AWD) using EPOS RTK or wire, sold through dealers, and the only mower brand we can find with an FCC Conditional Approval on file as of October 2026, per the FCC appendix as read by RobotMowGuide (Husqvarna).
• Worx. Wirecutter’s current top pick is the Landroid Vision Cloud WR340 (Wirecutter). WR340 and the 4WD WR346 were listed “coming soon” in October 2026; the older wired Landroid M and L are on Worx’s legacy page at $599.99 and $699.99 (Worx).
• Ecovacs GOAT. The LiDAR Pro line (O1000, A2000, A3000) plus the budget O1000 RTK. Reviewed named the A3000 LiDAR Pro best overall (Reviewed). Ecovacs lists no cellular option.
• eufy (Anker). Pure vision, no antenna. E15 (0.2 acre) and E18 (0.3 acre) share hardware. Not recommended by eufy for St. Augustine or dense Zoysia (eufy).
• Sunseeker. Popular Mechanics’ best overall was the Orion X7, now replaced by X7 Gen 2 and X7 Plus Gen 2 (0.75 and 1.5 acres, AWD). Two-year warranty, shorter than most (Sunseeker).
• Greenworks. Wire-free line is AiMowbot (C20, C20Z, C30Z, C40), RTK + vision at $999.99 to $1,599.99. Optimow wired models are mostly sold out (Greenworks).
• Dreame. LiDAR + vision AWD only in the US: A3 AWD (1000, 2000) and A3 AWD Pro (2500, 3500, 5000). Street prices moved between page loads in October 2026, so confirm before buying (Dreame).
• Roborock. New at CES 2026. RockMow X1 series (RTK + vision, 4WD) and X120H LiDAR, plus the RockNeo Q110H at $999 (Roborock). US spec tables are JavaScript-rendered and thin.
• Lymow. Tracked drive and dual rotary blades, rated 100% slope. One Plus is Wirecutter’s upgrade pick. 78.5 lb, which matters if you ever need to carry it (Lymow).
• TerraMow. Vision-only V1000, WIRED’s pick for regular lawns, but the US variant was “sold out or unavailable” in October 2026 (TerraMow).
• Mova. LiDAR + vision Lidax Ultra line, 1000 through 3000 AWD. PCMag favorite and a Wirecutter budget pick. Street prices $999 to $2,199 on sale (Mova).
• Anthbot. The budget RTK brand. M5 from $649, M9 from $699, M5 LiDAR from $799. WIRED’s budget pick is the M9 (Anthbot).

Also in the database but outside this list: Yarbo (modular tracked platform, mower plus snow blower, roughly $4,000 to $4,500 complete), Airseekers (Tron, Tron Plus), EcoFlow Blade (appears discontinued in the US) and Mowrator S1 (remote-control, not autonomous).

Price tiers at a glance

Street prices below are what the brand store showed on October 17, 2026. Most are fall sale prices. MSRP is in parentheses. Rated area is the manufacturer’s figure. Full database and method on How we evaluate.

The FCC Covered List, in 150 words

On July 28, 2026, the FCC added “foreign-produced advanced robotic devices” to its Covered List, and confirmed to PCMag that robot lawn mowers are included (PCMag). The practical effect: new models from foreign makers cannot get FCC authorization for US sale unless they receive a Conditional Approval. Models authorized before July 28 can keep being imported, sold and used, and can receive security and compatibility firmware updates at least through January 1, 2029 (Morgan Lewis).

As of the October 9, 2026 appendix, Husqvarna’s 305v, 310v, 420v and 440v IQ platforms were the only mower approvals listed. No Navimow, Mammotion, Dreame, Worx, Ecovacs, Mova, eufy, Sunseeker or Greenworks entry appeared (RobotMowGuide tracker, updated October 13, 2026). Current-gen mowers are not banned. What is uncertain is 2027 launches. We track it on the FCC Covered List tracker.

When to buy

Consumer Reports lists April and September as the best months to buy mowers (CR). For robot mowers specifically, the calendar looks like this:

• January (CES). New lineups are announced the first week of January and ship March to May. CES 2026 brought Navimow’s X4, i2 and H2, Roborock’s entry into mowers, Dreame’s A3 AWD Pro and Mammotion’s LUBA 3 AWD (Wirecutter CES coverage). Prices on outgoing models soften after the announcements.
• April. New models are shipping, old ones are discounted, and you have the full season ahead.
• June to July (Prime Day). Amazon Prime Day ran June 23 to 26, 2026, with brand early-access deals from early June. Navimow took up to $510 off X4 and i2 AWD models (PR Newswire).
• September to October. Fall sale season. The October 2026 street prices in our database are 15 to 40 percent below MSRP on many models. The downside is you get one or two months of mowing before storage. See How to winterize a robot mower.
• Black Friday. Clearance on outgoing models. Good prices, but confirm the model is still getting firmware updates.

Search interest for robot mowers peaks in May, when people make their first spring cut and decide they are done with it (Accio, citing Google Trends). That is also when stock runs thin. If you know you want one, April is the month.

What we will cover

This hub links to everything else. Here is the plan, in the order we think it helps most:

• Lawn size guide: square meters to acres, rated vs real, and a model table for every yard size.
• RTK vs LiDAR vs Vision: look up at your sky, then pick a navigation family.
• FCC Covered List tracker: which models are affected, updated as the FCC appendix changes.
• RTK signal lost fixes and error code lookup: the ownership problems the brand pages gloss over.
• Winter storage: charge levels, temperatures and spring restart, by brand.
• Head-to-heads, model reviews and accessory guides as the robot mowers category fills in.

We also cover robotic pool cleaners, where the questions are different but the approach is the same: specs from the source, owner patterns from the forums, and no hands-on claims we cannot back up.

Sources

• Consumer Reports, Best Robotic Lawn Mowers
• eufy E15 product and FAQ page
• Navimow Academy, Why is my GPS/RTK signal weak
• Ecovacs, RTK vs LiDAR Robot Lawn Mowers
• TheRobotsHQ, Best Robot Lawn Mower for 1 Acre
• Navimow US store
• Navimow i215 LiDAR
• Navimow X3 series
• Mammotion LUBA 3 AWD
• Mammotion LUBA 2 AWD X
• Husqvarna Automower 410 iQ
• Husqvarna Automower 440 iQ
• Wirecutter, The Best Robot Lawn Mower
• Worx Landroid Legacy Models
• Reviewed, Best Robot Lawn Mowers
• Ecovacs GOAT A2000 LiDAR Pro
• Sunseeker US store
• Greenworks robotic mowers
• Dreame A3 AWD Pro
• Roborock RockMow X1
• Lymow One Plus
• TerraMow V1000
• Mova Lidax Ultra 1000
• Mova Lidax Ultra 2000
• Anthbot M9
• PCMag, FCC ban on foreign-made robots includes robot vacuums
• Morgan Lewis, FCC adds foreign-produced advanced robotic devices to Covered List
• RobotMowGuide, FCC robot mower ban tracker
• Wirecutter, Best of CES 2026
• PR Newswire, Navimow Prime Day 2026
• Accio, Lawn mower industry trends (Google Trends seasonality)