Mower Rank

Mammotion LUBA 3 AWD 3000 vs Navimow X390

Mammotion LUBA 3 AWD 3000 vs Navimow X390: compare price, lawn size, slope, noise and navigation to pick the right robot mower for a big or hilly yard.

Where each one wins

Worked out from the specs and prices below.

Side by side

Rows that differ are marked.

SpecLUBA 3 AWD 3000 (Standard)X390
Lowest price$2,799$4,499
Max lawn size0.75 acres2.5 acres
Max slope80 %50 %
NavigationRTK GPS + LiDARRTK GPS + camera
No boundary wireYesYes
Needs RTK antennaNoYes
Cutting widthNot listed9.3 in
Cutting height1–2.7 in2–4 in
All-wheel driveYesNo
Noise70 dB60 dB
Water ratingIPX6IP66
Weight41 lb43.9 lb
Warranty3 years3 years

Where both rank

Place and score in each best list that ranks both. Scores compare models within one list.

ListLUBA 3 AWD 3000 (Standard)X390Models ranked
Best Robot Lawn Mowers#14 (score 55)#2 (score 60)32
Best Robot Mowers for Hills#6 (score 81)#25 (score 46)26
Best Quiet Robot Mowers#36 (score 54)#19 (score 66)37

What actually separates them

These two solve different problems. The Mammotion LUBA 3 AWD 3000 is built for slopes: it handles up to 80 % with all-wheel drive, and its RTK GPS + LiDAR navigation needs no separate RTK antenna. It covers up to 0.75 acres and weighs 41 lb.

The Segway Navimow X390 is built for area. It is rated for up to 2.5 acres, mows up to 240 min per charge and has a 9.3 in cutting width. The trade-off is a 50 % slope limit, no all-wheel drive, and an RTK antenna you have to install. It is also the quieter machine at 60 dB, against 70 dB for the Mammotion.

Prices as of November 8, 2026: the LUBA 3 costs $2,799 and the X390 costs $4,499, so the Navimow costs considerably more for more than three times the lawn size.

Both rank in our lists for different reasons. On robot mowers for hills the LUBA 3 is 6th with 81 points and the X390 is 29th with 46. On robot mowers for large yards the X390 is 4th with 46 points. For noise, see quiet robot mowers, where the X390 is 20th and the LUBA 3 is 37th.

Which to buy

Pick the LUBA 3 if your lawn is under 0.75 acres and steep, or if you do not want to place an antenna. Its 80 % slope rating is the biggest advantage here.

Pick the X390 if you have one to two acres of mostly gentle ground, or if neighbors and quiet mornings matter. Make sure the 50 % limit covers your worst slope before paying the premium.

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