ROBOVERDICT

Head to head · Robot lawn mowers

Segway Navimow X420 vs Mammotion LUBA 3 AWD 5000

Segway Navimow X420 or Mammotion LUBA 3 AWD 5000? Verdict Scores 89 and 85. The LUBA 3 AWD 5000: max lawn area 5,000 vs 2,000 m².

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

Shop links are affiliate links: a purchase through them may earn RoboVerdict a commission, which never changes a ranking.

Verdict

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

The Segway Navimow X420 has the edge in cutting, reliability and value. The Mammotion LUBA 3 AWD 5000 has the edge in navigation, obstacle avoidance and features.

In the manufacturers' published figures the Segway Navimow X420 is ahead on 5 rows, among them zones (120 against 50), cutting width (430 mm against 400 mm) and max slope (84% against 80%). In turn, the Mammotion LUBA 3 AWD 5000 is ahead on 2 rows: max lawn area (5,000 m² against 2,000 m²) and runtime (3 h 35 min against 1 h 30 min).

The Segway Navimow X420 suits large, sloped or rough lawns around 2,000 m². The Mammotion LUBA 3 AWD 5000 suits sloped, terraced or banked gardens.

Segway Navimow
Segway Navimow X420≈ $2,720
Mammotion
Mammotion LUBA 3 AWD 5000$2,799

Where the Segway Navimow X420 is ahead

  • Cutting99 · 72
  • Reliability83 · 80
  • Value31 · 25
  • Zones120 · 50
  • Cutting width430 mm · 400 mm
  • Max slope84% (40°) · 80% (39°)
  • Charging time1 h 15 min · 2 h 25 min
  • Noise68 dB · 70 dB

Where the Mammotion LUBA 3 AWD 5000 is ahead

  • Navigation100 · 97
  • Obstacle Avoidance100 · 85
  • Features95 · 90
  • Max lawn area5,000 m² (1.24 acres) · 2,000 m² (0.49 acres)
  • Runtime3 h 35 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 5000
Segway Navimow X420
Segway Navimow press image
Mammotion LUBA 3 AWD 5000
Mammotion press image
≈ $2,720Price in the manufacturer's shop
$2,799Price in the manufacturer's shop
Highest Verdict Score
Check priceCheck 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
  • No RTK antenna to site: network RTK over the included 4G, plus LiDAR and two cameras
  • All-wheel drive rated for 80% slopes
  • 15 Ah battery: 215 minutes and 1,700 m² a charge
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 by hand
  • 70 cm minimum passage rules out narrow garden paths
  • 145 minutes to recharge, the longest in the LUBA 3 family
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, terraced or banked gardens
  • Large plots above 2,000 m²
Score breakdown
Verdict Score89/10085/100
Navigation
97
100
Cutting
99
72
Terrain
100
100
Obstacle Avoidance
85
100
Ease of Use
100
100
Reliability
83
80
Features
90
95
Value
31
25
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 area2,000 m² (0.49 acres)5,000 m² (1.24 acres)
Zones12050
Navigation
NavigationRTK-GNSS + visionRTK-GNSS + vision + LiDAR
Boundary wireNot requiredNot required
Obstacle avoidance3D time-of-flightCamera + LiDAR fusion
GNSS antenna in the boxOptional local base station instead of network RTKNot published
LiDAR rangeNot published70 m
LiDAR field of viewNot published360° × 59°
Cutting
Cutting width430 mm400 mm
Cutting height20–95 mm25–70 mm
Edge cuttingYesNo
Cutting motors2 × 180 WNot published
Floating deck and anti-clogging discsYesNot published
Cutting height adjustmentFrom the appNot published
Cutting discsNot published2, six pivoting blades each
Cutting motor powerNot published165 W per disc
Terrain
Max slope84% (40°)80% (39°)
DrivetrainAWDAWD
Vertical step7 cmNot published
SteeringEccentric front wheels, two steering motors, dual suspensionNot published
Power
Battery10,000 mAh324 Wh
Runtime1 h 30 min3 h 35 min
Charging time1 h 15 min2 h 25 min
Area per charge675 m²1,700 m²
Mowing rate450 m²/h500 m²/h
Time for the rated area8 hoursNot published
Battery warranty2 yearsNot published
Battery voltageNot published21.6 V
Connectivity
Wi-FiYesYes
BluetoothYesYes
4G / LTEYesYes
GPSYesYes
Cellular plan1 year free, then €29.90 a yearNot published
On-device display3.5-inch colour LCDNot published
Smart homeAlexa, Google HomeNot published
Physical
Weight28.8 kg19 kg
L × W × H850 × 610 × 351 mm690 × 533 × 279 mm
Noise68 dB70 dB
Weather sealingIP66IPX6
Support
Warranty36 months36 months
ReleasedNot published2025
Obstacles
Recognised object types200+300+
Depth sensingToF sensor alongside the 360° cameraNot published

Also worth a look

  • Segway Navimow

    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

    Mammotion LUBA 3 AWD 3000

    The LUBA 3 for 3,000 m²: all-wheel drive on 80% slopes, a 400 mm deck with 165 W motors, 360° LiDAR, network RTK and two cameras together, and 1,400 m² a charge.

  • Dreame

    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.

Other comparisons

Side by side →