Robot Mower Glossary

MA MowAutonomous Editorial Team · Updated 2026-06-23

Confused by robot mower jargon? Our glossary defines every term you'll encounter when shopping for, installing, or maintaining a wire-free robot mower. 40 terms, all explained in plain English.

2

2WD (Two-Wheel Drive)

A drivetrain where only the rear wheels receive power. 2WD mowers are cheaper and fine for flat lawns but struggle on slopes over 25%.

4

4G Cellular

A cellular data connection built into some premium mowers (Mammotion LUBA 2 AWD 3000X, 10000H) for anti-theft tracking when Wi-Fi is unavailable. Usually requires a subscription.

4WD (Four-Wheel Drive)

Same as AWD — all four wheels receive power. Used by Worx to describe the WR344 (vs. 2WD WR320).

A

AI Vision

A navigation system that uses one or more cameras plus a neural network trained on thousands of lawn images to 'see' the difference between grass and not-grass. Used as a primary navigation system (Worx Vision Cloud) or as a backup to RTK-GPS (Segway Navimow, Mammotion LUBA 2).

Anti-theft GPS

A GPS tracking system that allows the mower to report its location even when away from Wi-Fi. Standard on most RTK-GPS mowers (the GPS hardware is already there). The 'H' in Mammotion LUBA 2 AWD 10000H indicates built-in anti-theft GPS.

AWD (All-Wheel Drive)

A drivetrain where all four wheels receive power independently. AWD robot mowers (like the Mammotion LUBA 2 AWD series) handle slopes much better than 2WD mowers because each wheel can adjust its torque based on available traction.

B

Base Station (RTK)

A fixed antenna mounted in your yard that provides correction signals to the mower's RTK-GPS receiver. The base station is what makes RTK-GPS centimeter-accurate (vs. 3-meter accuracy of standard GPS).

Bluetooth Backup

A Bluetooth connection that allows basic mower control (start, stop, return to base) when Wi-Fi is unavailable. Most wire-free mowers have Bluetooth as a backup to Wi-Fi.

Boundary Mapping

The process of walking the mower around your lawn edge with the app to record the lawn boundary. The mower uses this map to know where to mow and where to stop. Takes 15-45 minutes depending on lawn complexity.

C

Charging Station

A dock where the mower returns to recharge its battery. Mounted in a corner of your yard near an outdoor electrical outlet. The mower docks with metal contacts on the station.

Cut-to-Edge

A marketing term for mowers that can mow closer to the lawn edge than standard mowers. In practice, all robot mowers leave a 2-4 inch uncut strip at edges that requires manual trimming.

Cutting Deck

The underside of the mower where the blades are housed. Cutting deck width (typically 8-16 inches) determines how wide a strip of grass the mower cuts in one pass.

Cutting Height

The height at which the mower cuts the grass, adjustable from about 1 to 4 inches. Most cool-season grasses want 2.5-3.5 inches; most warm-season grasses want 1.5-2.5 inches.

E

Edge Mode

A special mowing mode where the mower follows the lawn boundary closely to cut the edge. Marketing fluff — every mower leaves an uncut strip at the edges.

F

Firmware

The software that runs on the mower itself (vs. the app, which runs on your phone). Manufacturers release firmware updates regularly to fix bugs and add features.

G

GFCI Outlet

Ground Fault Circuit Interrupter — a type of outdoor electrical outlet with built-in safety protection. Required for robot mower charging stations. If your outdoor outlet has 'Test' and 'Reset' buttons, it's GFCI.

I

IPX Rating

Ingress Protection rating — a measure of water resistance. IPX5 means the mower can handle rain and sprinklers. IPX6 means it can handle powerful water jets. Don't submerge an IPX5 or IPX6 mower.

L

LiDAR

Light Detection and Ranging — a navigation system that uses a spinning laser to scan the mower's surroundings in 360 degrees, building a 3D map. Works in complete darkness, doesn't need satellite signal. Used on the Mammotion LUBA 3 series and Dreame A3.

LiFePO4

Lithium iron phosphate — a type of lithium-ion battery chemistry known for long life and safety. Not commonly used in robot mowers (most use standard lithium-ion), but used in some portable power stations.

Lithium-ion Battery

The type of battery used in all modern robot mowers. Lightweight, high-capacity, and long-lasting (5-8 years, 1,000-2,000 charge cycles). Replacement cost: $150-$400.

M

Mower Garage

A protective cover for the charging station, typically $100-$300. Protects the station from sun and rain, extending its life significantly.

Multi-Zone

The ability to handle multiple separate lawn areas (front yard, back yard, side strip) as distinct mowing zones. The mower travels between zones via a 'transit path' you map during setup.

N

NetRTK

A networked RTK-GPS service that provides correction signals via the internet (vs. a physical base station in your yard). Used by some 2026 mowers to eliminate the need for a base station.

No-Mow Zone

An area within your lawn boundary that the mower avoids — garden beds, kids' play areas, water features. Marked in the app during setup.

O

Obstacle Avoidance

The mower's ability to detect and avoid obstacles (garden hoses, toys, pets). Basic systems use bump sensors; better systems use ultrasonic sensors; best systems use AI Vision or LiDAR.

OmniSense 3D LiDAR

Dreame's brand name for their 3D LiDAR navigation system. Uses a spinning laser to build a 3D map of the surroundings in real time.

ORV (Off-Road Vehicle) Tuned

Segway's brand name for the suspension system on the Navimow X-series. Dual-tuned suspension designed for rough terrain.

P

Perimeter Wire

A copper wire buried around your lawn edge that traditional robot mowers follow to know the boundary. Wire-free mowers don't need perimeter wire — that's their main advantage.

PIN Code

A security code required to operate the mower. Prevents unauthorized use if the mower is stolen. Set up the PIN during initial configuration.

R

Rain Sensor

A sensor that detects rain and pauses mowing during heavy rain. Most wire-free mowers have one. Sensitivity is usually adjustable in the app.

Replacement Blades

The cutting blades on a robot mower, which need replacement every 1-3 months depending on lawn size and grass type. Cost: $15-$40 per set.

RTK-GPS

Real-Time Kinematic GPS — a centimeter-accurate version of standard GPS. Uses a base station or networked correction service to bring accuracy from 3 meters down to 2-4 centimeters. The most common navigation system in wire-free robot mowers.

Runtime

How long the mower can mow on a single battery charge, typically 90-360 minutes depending on battery size and lawn conditions.

S

Slope Rating

The maximum slope the mower can handle, expressed as a percentage (e.g., 80%) or degrees (e.g., 38°). 80% slope = 38° = steeper than most riding mowers can handle.

Smartphone App

The mobile app (iOS and Android) used to control the mower, map the lawn, set schedules, and view mower status. App quality varies significantly by manufacturer — Segway's is the best.

T

Transit Path

A mapped path between separate lawn zones that the mower uses to travel between them without mowing. Used in multi-zone setups.

Tri-Fusion Navigation

Mammotion's brand name for their combination of RTK-GPS + LiDAR + AI Vision in a single navigation system. The most advanced navigation available in 2026.

U

Ultrasense Vision

Mammotion's brand name for their AI vision system on the YUKA series. Functionally similar to other AI vision systems.

W

Wheel Slip

When the mower's wheels lose traction, typically on wet slopes or loose soil. AWD mowers handle wheel slip much better than 2WD mowers thanks to software traction control.

Z

Zone

A distinct mowing area within your property. Most wire-free mowers support 5-10 zones. Used for properties with multiple separate lawn areas.