One Plus
4 independent reviewsRead the findings →A wire-free robot mower on tank tracks, built for big, steep, rough or wet gardens. It cuts cleanly and grips where wheels slip. It's heavy and loud, though, leaves a strip at the edges, and one long-term tester's unit failed.
See the alternatives below, or switch market.
Where it sits in Lymow’s range
- Lymow OneThe original tracked Lymow; blades and batteries don't swap
- One PlusThis model
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What reviewers found
Four German sites and one English-language one have tested it. PC-WELT ran it on a hilly 531m² plot and recommends it for large, rough properties. Basic Tutorials scored it 86 out of 100, praising the cut and obstacle avoidance but not the software. SmarthomeAssistent tested slopes, zones and narrow passages, and Smartzone used it for about four months before it failed. GameStar adds early impressions from a damp forest-edge garden.
PC-WELT, hands-on, May 2026 (Tested on a hilly 531m² plot) · Basic Tutorials, hands-on, Jun 2026 · SmarthomeAssistent, hands-on, Aug 2026 (Tested the 10A version on a two-zone garden with a slope ramp) · Smartzone, hands-on, About four months, Sept 2026 (Used on a gently sloping 1,000m² lawn until it failed) · GameStar, hands-on, Jun 2026 (Early impressions from the first weeks of a longer test, with no final verdict yet.)
Cut quality and edges
Mixed resultsPC-WELT and Basic Tutorials found the cut very clean, even in tall or dense grass. Edges are the weak point: PC-WELT saw a strip of up to 20cm left by trees and beds, and SmarthomeAssistent says it keeps well clear of walls, so plan on trimming.
Setup and boundaries
Mixed resultsThere's no wire, but you map the lawn by steering it round in the app, which PC-WELT found more work than many rivals. SmarthomeAssistent and Basic Tutorials could only connect on 2.4GHz Wi-Fi, and Basic Tutorials sat through a long, unskippable update first.
Navigation
Mixed resultsPC-WELT found it accurate even under trees. Basic Tutorials saw it hesitate under trees and by buildings, leaving small gaps and once failing to get home, and in a narrow passage SmarthomeAssistent got dozens of fault messages.
Slopes and rough ground
Reviewers rate it highlyThe tracks are its strength. SmarthomeAssistent saw it climb a steep test ramp with ease, Basic Tutorials found it held on wet, sandy and loose ground, and PC-WELT got reliable climbing on real hills, though not up to the maker's 45° claim.
Obstacles and safety
Mixed resultsPC-WELT and Basic Tutorials saw it stop for or steer round toys, chairs, pots and sprinklers, though very flat objects were caught late. SmarthomeAssistent found it spared a hedgehog dummy but lists driving over obstacles among its faults.
Weather
Mixed resultsPC-WELT found the tracks grip on wet, soft grass. After heavy rain, though, Smartzone saw charging stop and the control panel go dead, and its mower later failed for good, which it puts down to water getting in.
App and software
Mixed resultsPC-WELT and Basic Tutorials found the app clear, with detailed settings for each zone. Basic Tutorials had frequent Wi-Fi drops, and SmarthomeAssistent notes there's no public list of what firmware updates change.
Upkeep
Not enough evidenceOnly PC-WELT covered upkeep, finding the open deck easy to clean but the side outlet prone to clogging in cooler weather unless the strongest mode is on. No other review we use reported on blades or cleaning.
Reliability and support
Not enough evidenceOnly Smartzone has run it for months. Its mower failed after about four months on a gentle lawn, and Lymow's support was slow to start but replaced it once the fault was confirmed. One unit isn't a failure rate, but it's a warning.
Value
Mixed resultsPC-WELT calls the price high but justified for large, hilly plots by the build, battery and grip. Basic Tutorials marks value lower than its other scores and feels the software should be more polished at this price.
Verdicts come from independent, hands-on, finished reviews. An area needs at least two of them before we say more than “Not enough evidence”. We don't score robots ourselves. How this works
A clean cut in rough grass
The two blades and strong airflow lift grass before cutting, and testers liked the result. PC-WELT found the cut clean and the mulch fine, and the strongest mode shredded fallen leaves too. Basic Tutorials called it very neat in dense, tall grass. On wet grass GameStar saw clippings clog the deck. Edges are the catch: expect to trim a strip beside walls, trees and beds.
Tracks that grip on slopes
Tracks rather than wheels are why you'd buy it. SmarthomeAssistent saw it climb a steep test ramp easily, slipping only briefly as it turned. Basic Tutorials found the tracks held on wet, sandy and loose ground without marking the lawn, and PC-WELT says the floating deck follows bumps well. PC-WELT measured reliable climbing to about 30°, though, short of Lymow's 45° claim, so don't count on the full figure.
Good at spotting objects
PC-WELT put toys, furniture, sprinklers, branches and a soft toy in its way, and it slowed and steered round them, only spotting a flat folding ruler late. Basic Tutorials found the camera and sensors reliably stopped for chairs, pots and toys, low ones included. SmarthomeAssistent saw it spare a hedgehog dummy. GameStar still only runs it in daylight to protect hedgehogs at dusk.
Setup takes patience
There's no wire to lay, but you drive it round the lawn's edge in the app to map it. PC-WELT found that more work than with many rivals, and moving the garden aerial later means mapping again. SmarthomeAssistent had a zone close early in a narrow gap and had to split it. Both SmarthomeAssistent and Basic Tutorials could only connect it on 2.4GHz Wi-Fi.
Loud, heavy and failed once
PC-WELT measured 60 to 74dB(A) depending on the mode, and GameStar found it louder than Mammotion's LUBA 3 AWD. At around 35kg it needs two people to unbox, says Basic Tutorials. The bigger worry is Smartzone: after about four months on a gentle lawn, heavy rain knocked out charging and the control panel, and the mower failed for good. Lymow replaced it, after a slow start from support.
PC-WELT and SmarthomeAssistent tested the 10A version. Lymow says the 5A version has the same mower, drive and app, with a slower charger and less mowing per day.
Our take
Should you buy the One Plus?
Best for: Large lawns with slopes or rough ground. Skip it if: You want to avoid trimming the borders by hand.
Consider the One Plus for a large, sloping, rough or damp garden where wheeled robots slip or get stuck, as long as noise doesn't matter and you'll trim the edges yourself. For a gentler lawn, the Mammotion LUBA 3 AWD is quieter and lighter, and Husqvarna's 435X AWD NERA comes with dealer support. Check the warranty terms and returns before you buy.
The One Plus is Lymow's second tracked mower, shown at CES in January 2026 and on sale from spring. Instead of wheels it runs on rubber tracks, with a floating deck and two spinning steel blades that mulch grass and leaves. It finds its way by satellite, using an aerial you put up in the garden, plus two front cameras, so there's no boundary wire. You draw the lawn's edge by driving it round with your phone. Lymow says it climbs 45° slopes and covers up to about 7,000m² a day on the 10A version. It weighs around 35kg.
Four German testers and one English-language site have used it. They agree the cut is clean, even in long, dense or wet grass, and the tracks grip on wet, sandy and uneven ground. Obstacle avoidance worked well for most, though very flat objects were spotted late. The common gripes are noise, a heavy body that needs two people to unbox, and an uncut strip beside walls, trees and beds. Mapping is manual, and some testers hit Wi-Fi drops, forced updates and fault messages in tight spots. One site's mower failed after about four months and was replaced under warranty.
Before you buy
The questions people ask about this one
Will it really climb my slope?
Probably, if it's steep but not extreme. Lymow claims 45°, per the specifications. SmarthomeAssistent saw it climb a steep test ramp easily, and PC-WELT measured reliable climbing to about 30° on a real hilly plot. That's still steeper than most wheeled mowers manage.
How much edge trimming will I still do?
Some. There's no edge trimmer, and PC-WELT saw a strip of up to 20cm left beside trees, shrubs and no-go zones. SmarthomeAssistent found it stays well away from walls and drops. Lawn edging it can drive over works well, according to PC-WELT.
Is it too loud for my neighbours?
It could be. PC-WELT measured about 60dB(A) in the quietest mode and 74dB(A) in the strongest, close to a normal mower. GameStar found conversation on the terrace hard when it passed. Schedule it for daytime and use the quieter modes.
What happens in the rain?
Lymow rates it IPX6, per the specifications. PC-WELT found the tracks grip on wet grass, but GameStar pauses it after heavy rain because wet soil sticks to the tracks. Smartzone lost charging and the control panel after a downpour, and that unit later failed.
Can one person move it?
Just about, with care. It weighs around 35kg, per PC-WELT, which says its side handles and rear-heavy balance help. Basic Tutorials recommends two people for unboxing and found it awkward to carry. Plan where the charging station goes before it arrives.
Alternatives
Other robot lawn mowers to compare.
LUBA 3 AWD
Why consider it: All-wheel drive for large, awkward lawns, with wide, tidy stripes and a higher claimed slope rating.
The compromise: It's heavy too, misses small objects and can scuff soft ground when it turns.
Automower 435X AWD NERA
Why consider it: Husqvarna's all-wheel-drive wire-free mower copes with steep, rough gardens and has dealer support.
The compromise: It runs over small objects and also leaves a strip at the edges.
X4 series
Why consider it: Four-wheel drive and a fast, gentle mowing style for large, hilly lawns.
The compromise: It's too wide for narrow gaps and also weak at the edges.
One Plus head to head
Head to head
Mammotion LUBA 3 AWD vs One Plus
Our verdict: Both are wire-free mowers for big, awkward lawns. The LUBA 3 AWD has a higher claimed slope rating on wheels, and GameStar found it quieter. Choose the One Plus if your ground is wet, soft or broken up enough that tracks will grip where wheels slip.
Specs
Full specifications
Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.
Owner reviews
Do you own the One Plus?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner accounts are shown separately from independent reviews.
Sources
Where this page’s findings come from
Editorial reviews
- PC-WELT: Lymow One Plus test ↗Hands-on · Tested on a hilly 531m² plot
- Basic Tutorials: Lymow One Plus review: a garden giant for rough terrain ↗86 / 100Hands-on
- SmarthomeAssistent: Lymow One Plus test ↗Hands-on · Tested the 10A version on a two-zone garden with a slope ramp
- Smartzone: Lymow One Plus test update: failure after four months ↗Hands-on, About four months · Used on a gently sloping 1,000m² lawn until it failed
- GameStar: Lymow One vs One Plus: is the upgrade worth it? ↗Hands-on · Early impressions from the first weeks of a longer test, with no final verdict yet. (not counted towards our two-review minimum)
Sources
Videos
- Search YouTube for Lymow One Plus ↗Search results may include company demonstrations or similar models. Check the source and model name; a demonstration is not an independent performance test.