Head to head · Robot lawn mowers

Segway Navimow X420 vs Mammotion LUBA 3 AWD 3000

Two all-wheel-drive mowers: the Navimow cuts wider, higher and to the edge; the LUBA covers 3,000 m², adds LiDAR to RTK and runs nearly twice as long.

Manufacturers' published figures, scored by the same engine as the rankings. Nothing here is from a test we ran. · Published September 12, 2026

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Segway Navimow press image
Segway Navimow
X420
89/100Verdict Score
Check price Check price on Amazon.com
Mammotion press image
Mammotion
LUBA 3 AWD 3000
85/100Verdict Score
Check price on Amazon.com

Verdict

The Segway Navimow X420 has the higher Verdict Score, 89 to 85.

Both are all-wheel-drive machines rated for slopes most gardens never have, 84% on the Segway and 80% on the Mammotion, both position by network RTK with a camera, both publish theft protection, a PIN lock, a rain sensor and a three-year warranty. What separates them is what each adds on top.

The Segway Navimow X420 cuts a 430 mm swathe against 400 mm, from 20 to 95 mm against 25 to 70 mm, cuts to the edge, and publishes 120 zones. It runs 90 minutes per charge and is rated for 2,000 m². The Mammotion LUBA 3 AWD 3000 adds LiDAR to RTK and the camera, so it keeps its position under trees where satellites drop out, publishes a 175-minute runtime, is rated for 3,000 m², passes a 700 mm gap, and stands 279 mm tall against the Segway's 351 mm. It is 2 dB louder, 70 dB against 68.

Our engine has the Segway ahead on the cutting subscore; the score card beside this verdict has both Verdict Scores. For an open lawn up to 2,000 m² with a lot of edge to trim it is the better mower. For a larger garden, one with tree cover, or one where the mower has to squeeze through gates, the LUBA's LiDAR and runtime are what you are paying for.

Both appear in

Brand guides

Segway Navimow

X420≈ $2,720

89/100

Mammotion

LUBA 3 AWD 3000$2,799

85/100

Where the Segway Navimow X420 is ahead

Cutting99 · 72
Reliability83 · 78
Value31 · 29
Zones120 · 30
Cutting width430 mm · 400 mm
Max slope84% (40°) · 80% (39°)
Charging time1 h 15 min · 2 h
Noise68 dB · 70 dB

Where the Mammotion LUBA 3 AWD 3000 is ahead

Navigation100 · 97
Obstacle Avoidance100 · 85
Features95 · 90
Max lawn area3,000 m² (0.74 acres) · 2,000 m² (0.49 acres)
Runtime2 h 55 min · 1 h 30 min

Subscores are from our engine; the specification rows are the manufacturers' published figures, listed only where the better direction is beyond argument.

Full specification, side by side

Compare	Segway Navimow Segway Navimow X420	Mammotion Mammotion LUBA 3 AWD 3000
	Segway Navimow press image	Mammotion press image
	89/100 ≈ $2,720Price in the manufacturer's shop	85/100 $2,799Price in the manufacturer's shop
	Highest Verdict Score
	Check price	Check price on Amazon.com
Shop links are affiliate links: a purchase through them may earn RoboVerdict a commission, which never changes a ranking.
At a glance
Leads on	Cutting Reliability Value	Navigation Obstacle Avoidance Features
Pros	84% slope rating on four-wheel drive with dual suspension, and a 7 cm vertical step 43 cm twin-disc deck, two 180 W motors, 20 to 95 mm cutting height Network RTK with a 360° camera, no antenna to install; 120 zones	LiDAR, network RTK and two cameras together; no antenna to install 165 W cutting motors on a 400 mm twin-disc deck 1,400 m² and 175 minutes a charge, 120 minutes to recharge
Cons	28.8 kg and 85 cm long, with no passage width stated 68 dB, the loudest Navimow No LiDAR: positioning needs satellites, with the camera as backup	No edge cutting, so a border strip still needs trimming 70 cm minimum passage and a 69 cm long chassis 70 dB stated, and 19 kg to lift
Best for	Large, sloped or rough lawns around 2,000 m² Thick grass and long cutting heights that a 22 cm deck cannot manage	Sloped plots between 1,500 and 3,000 m² Thick, fast-growing grass and gardens with tree cover
Score breakdown
Verdict Score	89/100	85/100
Navigation	97	100
Cutting	99	72
Terrain	100	100
Obstacle Avoidance	85	100
Ease of Use	100	100
Reliability	83	78
Features	90	95
Value	31	29
Specifications In green: the better figure where the direction is beyond argument, such as more lawn or less noise. Where it depends on your home, nothing is marked.
Coverage
Max lawn area	2,000 m² (0.49 acres)	3,000 m² (0.74 acres)
Zones	120	30
Navigation
Navigation	RTK-GNSS + vision	RTK-GNSS + vision + LiDAR
Boundary wire	Not required	Not required
Obstacle avoidance	3D time-of-flight	Camera + LiDAR fusion
GNSS antenna in the box	Optional local base station instead of network RTK	Not published
LiDAR range	Not published	70 m
LiDAR field of view	Not published	360° × 59°
Cutting
Cutting width	430 mm	400 mm
Cutting height	20–95 mm	25–70 mm
Edge cutting	Yes	No
Cutting motors	2 × 180 W	Not published
Floating deck and anti-clogging discs	Yes	Not published
Cutting height adjustment	From the app	Not published
Cutting discs	Not published	2, six pivoting blades each
Cutting motor power	Not published	165 W per disc
Terrain
Max slope	84% (40°)	80% (39°)
Drivetrain	AWD	AWD
Vertical step	7 cm	Not published
Steering	Eccentric front wheels, two steering motors, dual suspension	Not published
Power
Battery	10,000 mAh	259 Wh
Runtime	1 h 30 min	2 h 55 min
Charging time	1 h 15 min	2 h
Area per charge	675 m²	1,400 m²
Mowing rate	450 m²/h	500 m²/h
Time for the rated area	8 hours	Not published
Battery warranty	2 years	Not published
Battery voltage	Not published	21.6 V
Connectivity
Wi-Fi	Yes	Yes
Bluetooth	Yes	Yes
4G / LTE	Yes	Yes
GPS	Yes	Yes
Cellular plan	1 year free, then €29.90 a year	Not published
On-device display	3.5-inch colour LCD	Not published
Smart home	Alexa, Google Home	Not published
Physical
Weight	28.8 kg	19 kg
L × W × H	850 × 610 × 351 mm	690 × 533 × 279 mm
Noise	68 dB	70 dB
Weather sealing	IP66	IPX6
Support
Warranty	36 months	36 months
Released	Not published	Not published
Obstacles
Recognised object types	200+	300+
Depth sensing	ToF sensor alongside the 360° camera	Not published

Also worth a look

Segway Navimow
88
Segway Navimow X450
The 5,000 m² Navimow X4: four-wheel drive with dual suspension for 84% slopes, a 43 cm deck with two 180 W motors, a 15 Ah battery for 1,300 m² a charge and two years of cellular data.
Mammotion
85
Mammotion LUBA 3 AWD 5000
All-wheel-drive flagship for 80% slopes and 5,000 m², positioned by 360° LiDAR, network RTK and two cameras together, with no reference antenna to site.
Dreame
82
Dreame A3 AWD Pro 3500
The A3 AWD Pro for 3,500 m²: two blade discs cutting 40 cm, all-wheel drive for 80% slopes, 70 m LiDAR with two cameras instead of RTK, edges to within 3 cm and a 36 V 7.5 Ah battery.

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