# Anthbot M9 review

Low cost RTK and camera mower for small, flat lawns

- Our score: not scored yet
- Price: $699 (checked Nov 4, 2026)
- Status: on sale
- Best for: small flat lawns on a tight budget
- Skip if: your grass is thick, tall or hilly
- HTML version: https://robotsforthat.com/robot/anthbot-m9/

## Verdict

The M9 is one of the cheapest RTK mowers with camera obstacle avoidance, and both testers found it quiet, easy to set up and neat on a tidy lawn. It struggles in thick or tall grass, leaves a border strip and can lose its way after a mishap. Buy it for a small, flat, well kept lawn; skip it for rough or overgrown yards.

## Pros

- $699 on the Anthbot store
- Very quiet, about 60 dB measured
- Quick setup, about 10 to 20 minutes
- Compact enough for narrow paths
- Spare blades included

## Cons

- Stalls in thick, tall or wet grass
- Leaves a 15 to 20 cm uncut border
- Two wheel drive wanders on rough ground
- NetRTK needs a paid 4G plan
- Lost position after driving off a ledge in testing

## Specs

- area: Up to 1,000 m² (about 0.25 acre) (Anthbot); the app section of the same page says mapping works up to 500 m²
- max slope: 45% (24°) (Anthbot); GadgetReview found it wanders on steep, slippery or uneven ground
- navigation: Full band RTK with two 150° HDR cameras, AI detection of 1,000+ obstacles, auto or RC mapping (Anthbot)
- boundary wire: Not needed
- cut width: 7.9 in (20 cm), 5 blade disc (Anthbot)
- cut height: 1.2 to 2.8 in (3 to 7 cm), set in the app (Anthbot)
- battery runtime: About 90 min per charge, about 90 min to recharge, 5 Ah / 90 Wh battery (New Atlas)
- drive: Two wheel drive with front casters (GadgetReview)
- rtk required: Yes, RTK base station, or NetRTK over 4G with a subscription (Anthbot)
- multi zone: Up to 20 scheduled zones (Anthbot); GadgetReview found zones are square only
- noise: 58 dB (Anthbot); GadgetReview measured about 60 dB at 1 m
- weather: IPX6 with rain sensor (Anthbot)

## Safety

- recalls: Not checked
- fcc: Not checked
- company status: Active
- warranty: 3 years badge on Anthbot's site, not tied to the M9 on the product page

## Questions buyers ask

### Is there a subscription?

Only if you use NetRTK over 4G. GadgetReview reports $39.99 a year after the free trial. The included RTK base station works without it.

### Can it cut overgrown grass?

Not well. GadgetReview says the app advises getting the lawn under 7 cm first, and both testers saw it struggle in thick grass.

### Does it mow to the edge?

No. GadgetReview found a 15 to 20 cm band left uncut along borders.

## Sources

1. [Anthbot M9 product page (US)](https://anthbot.com/products/m9-robot-lawn-mower)
2. [GadgetReview, ANTHBOT M9 review](https://www.gadgetreview.com/anthbot-m9-review)
3. [New Atlas, Anthbot M9 robot mower review](https://newatlas.com/consumer-tech/anthbot-robot-mower-m9/)