Main trade-off
ANTHBOT M5
Its shorter cycle limits what fits before the lawn is needed for another use.
Head-to-head
Choose M9 if the lawn exceeds M5’s 500 m² rating or you need a longer uninterrupted mowing window. Choose M5 for a smaller lawn with flexible mowing hours and a worthwhile saving. The battery and capacity increase, while deck width and cutting heights stay the same.
Before you choose
Starting fully charged, M9’s claimed run could span the whole window. M5 reaches its stated recharge point after 40 minutes and then needs 60 minutes to charge. About 50 minutes of that free-lawn window fall during charging. Grass and terrain will change actual runtimes.
What this is based on
ANTHBOT M5: 40-minute run, 60-minute charge. ANTHBOT M9: 90-minute run, 90-minute charge. Example assumes a fully charged start.
Main trade-off
Its shorter cycle limits what fits before the lawn is needed for another use.
Main trade-off
A bigger battery does not widen the deck or raise the cutting-height ceiling.


ANTHBOT M5 vs M9 for a divided small yard. Compare charging pauses, carrying weight and zone allowance without mistaking battery size for cutting width.
Winner by situation
Only M9 fits the rated area.
M5 may be sufficient. M9 mainly adds cycle headroom.
M9 has the longer stated continuous run. Completion is not guaranteed.
Both have the same lower ceiling.
What matters in practice
Starting fully charged, M9’s claimed run could span the whole window. M5 reaches its stated recharge point after 40 minutes and then needs 60 minutes to charge. About 50 minutes of that free-lawn window fall during charging. Grass and terrain will change actual runtimes.
ANTHBOT M5: 40-minute run, 60-minute charge. ANTHBOT M9: 90-minute run, 90-minute charge. Example assumes a fully charged start.
M9 weighs only 0.3 kg more and shares the same body dimensions. That is about 10.6 ounces extra when moving it between isolated sections. Neither mower can cross steps simply because it supports multiple mapped zones.
ANTHBOT M5: 9.8 kg, 49.8 by 39.2 by 25.1 cm. ANTHBOT M9: 10.1 kg with the same dimensions. 0.3 × 35.274 = 10.58 ounces.
Both stop at 70 mm and use a 20 cm deck. A three-inch mowing target rules out both. On a lawn within both area ratings, M9 buys time between charges and more zones, without a taller cut or wider strip per pass.
ANTHBOT M5: 20 cm deck and 70 mm maximum height. ANTHBOT M9: Same deck and height. Three inches equals 76.2 mm.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
Rated for 0.125 acre and 45% interior grade, with wire-free setup. Your input is 0.25 acre and 20% grade.
Rated for 0.25 acre and 45% interior grade, with wire-free setup. Your input is 0.25 acre and 20% grade.
The area check uses the published maximum without adding a reserve. Where a systematic mowing rating is shown, that pattern is required for the maximum area. Boundary slopes can have a lower limit than interior ground. Trees, gates and disconnected zones still need checking.

ANTHBOT, M5 RTK
A compact RTK-and-camera mower for a small lawn, with an included reference station and app-adjusted cutting height.

ANTHBOT, M9
The quarter-acre RTK model extends the M5’s battery cycle and zone allowance while keeping the same cutting width and height limits.
Meaningful differences
| What changes | ANTHBOT M5 | ANTHBOT M9 | Why it matters |
|---|---|---|---|
| Area rating | 500 m² | 1,000 m² | Measure maintained grass rather than the entire lot. |
| Mowing and charging claims | 40 and 60 minutes | 90 and 90 minutes | A longer run can matter more than a longer recharge. |
| Battery | 45Wh | 90Wh | Twice the energy does not prove twice the daily output. |
| Cutting hardware | 20 cm deck, 30 to 70 mm height | 20 cm deck, 30 to 70 mm height | The upgrade does not change strip width or grass-height limits. |
| Weight and zones | 9.8 kg, twenty zones | 10.1 kg, thirty zones | The bigger battery tier adds little carrying weight. |
What you give up
Recommendation switch
Choose ANTHBOT M5. Charging pauses are easy to schedule
Choose ANTHBOT M9. You need a longer run before the lawn is occupied
What the facts say
Useful conclusions from the current robotic lawn mowers comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| ANTHBOT M5 |
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| ANTHBOT M9 |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

The lawn is below 500 m²
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The lawn is between 500 and 1,000 m²
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