Is This the End of Petrol Mowers? Lymow One Review | TechManPat

A tracked design for difficult lawns

The Lymow One weighs about 35 kg and uses an aluminium frame with tank-style tracks instead of conventional wheels. The tracks are designed to improve traction across different surfaces and help the mower handle slopes. It is rated to climb slopes up to 45 degrees, described in the review as a 100% grade, and can roll over obstacles up to 5 cm high, such as small roots and bumps.

Front omni wheels help the mower maintain contact with the ground while cutting. The mower is also weatherproofed to IPX6, allowing it to operate in rain and around sprinklers according to the review.

Rotary blades and high cutting capacity

Unlike robot mowers that use small razor-style blades, the Lymow One has two rotary mulching blades. They spin at 6,000 RPM and cover a 400 mm cutting width. The blades mulched grass finely during testing, while high-speed fans in the cutting deck helped blow the clippings down onto the lawn, removing the need for bagging or raking.

The mower cut buffalo and couch grass during weekly use. It only stalled when the cutting height was set to 30 mm and the mower was pushed into the ground, causing it to dig in. The cutting height can be adjusted from 30 mm to 100 mm. Other per-zone settings include blade speed, mowing speed, path spacing, stripe angle, mowing pattern and perimeter overhang.

The review states that the mower covers about 930 square metres per hour and approximately 2,300 square metres on one charge. With multiple cycles, it can cover up to 7,000 square metres in 12 hours.

Mapping, navigation and obstacle detection

The Lymow One uses an RTK base station together with visual SLAM cameras to map the property. During setup, it drives around the yard and creates a digital map. Virtual zones can then be created in the app for areas such as flower beds, with support for up to 80 mowing zones and separate schedules.

The app includes many useful settings, although the review found that some controls were not immediately easy to find. After the zones were configured, it was described as more intuitive to use.

For obstacle detection, the mower combines AI vision, five ultrasonic sensors and a bumper sensor. During testing, it slowed down and moved around dog toys, detected the edge of a garden and avoided some objects. It also passed over pet waste. If the RTK signal becomes weak under trees or in poor weather, the mower can fall back on its cameras and internal sensors.

Battery, charging and safety

The mower uses a removable lithium iron phosphate battery rated for about 2,000 cycles. Testing produced approximately 2.5 to 3 hours of mowing time on a full charge. When the battery is low, it returns to the dock automatically, and the included fast charger can recharge it to 90% in about 90 minutes before mowing resumes.

Because the mower uses rotary blades, safety is an important consideration. The blades stop in under one second if the mower is lifted or tips over, and there is an emergency stop button. GPS tracking can trigger an alert and lock the mower if it is taken while armed. A light allows operation at night, but the review recommends keeping children away from the mower while it is running.

Price and overall use

The review identifies the Lymow One as costing around US$25,000, making it a substantial investment. Setup involves installing the RTK base station and allowing the mower to map the property. Once configured, it is intended to operate with limited intervention and return to charging as needed.

The review unit was supplied by Lymow. The mower was assessed on slopes, thick grass and complex terrain rather than being presented as a simple small-lawn robot.