Lymow One Plus Review (2026): The 45° Slope Dual-Blade Robot Mower

Who this mower is, and isn't, for

The Lymow One Plus is the right machine for you if:

• Your property has genuine slope, with sections steeper than the Airseekers Tron's 33° driving grade. The 45° rating is the highest in our Tier-1 slate.
• Your turf is thick or matted. Yanko Design reported a noticeably cleaner finish than the Gen 1 on matted St. Augustine, and How To With Doc ran 100 cuts in thick, heavy grass.
• You want no perimeter wire. Boundaries are virtual, set in the app, with RTK + VSLAM positioning.
• Your lawn fits Lymow's daily ratings: 1.1 acres/day on the 5A model, 1.73 acres/day on the 10A. The 1.73 figure is a laboratory maximum, so leave headroom.

Skip the One Plus if:

• Your property is larger than the daily ratings, especially on slopes. Look at the LUBA 2 AWD or Yarbo reviews for bigger properties.
• You want the lowest possible price for wire-free mowing. The Airseekers Tron lists a $1,999* regular price and a 2,400 m² (0.59 acre) optimum area at a 33° driving grade.
• You need long brand history. Lymow is on its second product generation, and multi-year reliability data is still accumulating.

5A or 10A: the charger decides how much lawn you finish in a day

Lymow publishes the figures that settle this choice. Both models list 0.57 acre per charge and 3 hours of runtime. The 5A charges in 150 minutes and is rated for 1.1 acres a day. The 10A charges in 90 minutes and is rated for 1.73 acres a day. Both charge times are quoted from 10% to 90%. (Lymow One Plus product page)

Run those against lawn size. Up to 0.57 acre, one charge covers it and the charger does not matter. From 0.57 to about 1.14 acres, a full cut takes two runs and one recharge. The 10A finishes that pass in about 7.5 hours; the 5A takes about 8.5 hours.

Above about 1.14 acres, a full cut needs a third run and a second recharge. On the 10A that is 9 hours of mowing plus 3 hours of charging, about 12 hours, which matches Lymow's "3 cycles" description. That lawn is also past the 5A model's rated 1.1 acres a day, so Lymow does not rate the 5A to finish it in one day.

The 1.73 acres/day figure needs a correction before you size to it. Lymow's footnote calls it "a theoretical laboratory maximum under ideal conditions: flat terrain, full charge, continuous mowing, moderate grass height, and no docking interruptions." The One Plus is bought for slopes, which are outside those conditions. Lymow does not publish a slope-adjusted figure, and neither does any review we cite.

What to do: measure your mowable area. Under about 1.14 acres, the 5A saves $200* and costs you an extra hour per pass. Over that, buy the 10A, and on a sloped lawn keep the total well under 1.73 acres. If you buy the 5A for a 1.3-acre lawn, you pay $2,999* for a mower rated to leave part of it uncut each day.

On the cutting system: Lymow lists SK5 tool-steel rotary blades at 50 HRC and 3,000–6,000 RPM, with a floating deck that follows terrain changes. Yanko Design's matted St. Augustine comparison against the Gen 1 is the most specific cut-quality evidence we found. It is one reviewer's yard, in central Texas, under 32 oak trees.

What cited reviewers actually say

Setup and ownership reality

Lymow does not publish a setup time, and none of our cited reviews states one in hours. Here is what the in-box list and the reviews do tell you:

• Charging station: ships with an adaptor, a 10 m extension cable and four ground stakes.
• RTK reference station: ships with a radio antenna, two mounting poles, a wall mount bracket, a ground stake and two 5 m extension cables. Lymow lists a 3,200 ft coverage radius.
• Mapping: Yanko Design's reviewer defined the boundaries of a 6,777 sq ft property by driving the mower like a remote-control car. Mowing Magic describes mapping zones in the app.
• Zones: up to 80, with individual cutting heights and schedules.

Battery: Lymow rates the 15 Ah LiFePO4 pack for 2,000 charge cycles, marked as a laboratory figure. Lymow does not publish a blade replacement interval.

One spec to flag: Lymow lists a charging temperature range of 37°F–134°F, against 1°F–134°F for discharge. Below 37°F (about 3°C), the battery is outside its listed charging range. Lymow does not describe how the dock handles that, so check with Lymow if you mow in cold shoulder seasons.

The case for Lymow One Plus

The highest slope rating in our Tier-1 slate, on tracks instead of wheels. Dual SK5 rotary blades with the most specific published cut-quality evidence we found for matted grass. A LiFePO4 battery rated for 2,000 cycles, an A380 aluminum frame, IPX6 sealing and a 3-year limited warranty. The 10A model's 90-minute charge makes three runs in about 12 hours possible.

The case against

The 1.73 acres/day figure is a flat-terrain laboratory maximum, and the mower is sold for slopes. The 5A model is rated for only 1.1 acres a day. Setup includes siting an RTK reference station, and mowing without RTK signal is limited to 0.025–0.037 acres. Lymow is on its second generation, so long-term reliability data is thin. The listed charging floor of 37°F matters in cold climates.

Frequently asked questions

How is the Lymow One Plus different from the original Lymow One?

Lymow markets the One Plus as the "world's first dual-rotary-blade robotic mower". The product page lists an A380 aluminum frame at about 310 MPa, hub motors with "200% higher rigidity", IPX6 sealing, and a 15 Ah LiFePO4 battery rated for 2,000 cycles. Lymow states that blades and batteries are not interchangeable between the One and One Plus. Yanko Design reports that the redesign targets Gen 1 complaints, including cameras fogging in morning dew.

Does the Lymow One Plus really handle 45° slopes?

Lymow rates it for 45° (100% incline). None of the reviews we cite publishes a measured slope angle. Yanko Design's reviewer wrote that "in my testing on steep embankments, the drive system felt noticeably more stable and sounded smoother under load", without stating the angle. Treat 45° as the manufacturer ceiling and check your steepest section before relying on it.

How does the One Plus compare to Mammotion LUBA 2 AWD?

The One Plus uses tracks and dual rotary blades; the LUBA 2 AWD uses wheels and an all-wheel-drive layout. Lymow rates the One Plus for 45°, which is higher than the LUBA 2 AWD rating on our LUBA 2 AWD review. For larger properties, compare daily coverage on both manufacturer pages, because Lymow's 1.73 acres/day is a laboratory maximum on flat terrain.

What's the difference between the 5A and 10A models?

The charger and the rated daily area. Lymow lists a 150-minute charge (10% to 90%) and 1.1 acres/day for the 5A model, and a 90-minute charge and 1.73 acres/day for the 10A. Both list a 15 Ah LiFePO4 battery, 3 hours of runtime and 0.57 acre per charge. On a lawn needing two runs, the 10A saves 60 minutes per pass. On a lawn above about 1.14 acres, you need a third run, and that is past the 5A model's rated 1.1 acres/day.

How wire-free is the setup, really?

There is no perimeter wire. There is an RTK reference station: the in-box list includes the station, a radio antenna, two mounting poles, a wall bracket and two 5 m RTK extension cables. Lymow lists a 3,200 ft RTK coverage radius and only 0.025–0.037 acres (up to 10 minutes) of mowing without RTK. Lymow does not publish a setup time. Yanko Design's reviewer mapped a 6,777 sq ft property by driving the mower like a remote-control car.

Why dual blades instead of a single disc?

Lymow pairs the SK5 rotary blades with what it calls Cyclone Airflow. Yanko Design tested the One Plus against the Gen 1 on matted St. Augustine and reported "a noticeably cleaner finish", while noting it is not perfect. How To With Doc reports 100 cuts in thick, heavy grass over three weeks. The trade-off Lymow's own spec shows is a 1,785 W peak power output against 680 W rated.