Segway Navimow X420 vs Dreame Roboticmower A1

A straight comparison of what the manufacturers publish. Where a figure is missing for one model, the row says so rather than filling the gap.

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What each one is best at

There is no overall winner here — which mower is “best” depends on your garden. These are the categories where one model is measurably ahead on a published figure.

Best for steep terrain

Segway Navimow X420

Highest published slope rating at 84% (about 40°).

Widest cut

Segway Navimow X420

Cuts 430 mm per pass, so it covers ground faster.

Best for tree-heavy gardens

Dreame Roboticmower A1

The only model here whose published navigation includes a non-satellite positioning method. Check its manual for canopy and obstacle limits.

Where they differ

  • Slope ratings differ (45% (about 24°) to 84% (about 40°)), which matters if any part of your garden is on a bank.
  • Cutting width ranges from 220 mm to 430 mm, which affects how long each mow takes.

What they have in common

  • Both connect over Wi-Fi.
  • Both have a rain sensor.
  • Both support multiple mowing zones.
  • Neither needs a buried boundary wire.

Specifications side by side

Highlighted cells mark the better figure, and are only shown when every model publishes one.

Specification comparison of Segway Navimow X420, Dreame Roboticmower A1
Specification Segway Navimow X420 Dreame Roboticmower A1
Model identity
Model year Not published 2024
Coverage
Rated lawn area 2,000 m² 2,000 m²
Maximum slope 84% (about 40°) (best of the models compared) 45% (about 24°)
Navigation
Navigation system EFLS™ NRTK: Network RTK + 360° vision + VIO; 4WD with dual independent steering motors OmniSense 3D Ultra-Sensing LiDAR (360° × 59°)
RTK satellite Yes No
LiDAR No Yes
Camera / vision Yes Not published
Boundary wire required No No
Virtual boundaries Yes Yes
Multiple zones Yes Yes
Maximum zones 120 Not published
Obstacle avoidance VisionFence™ (360° RGB camera + ToF) High-precision 3D point cloud LiDAR obstacle detection
Cutting
Cutting width 430 mm (best of the models compared) 220 mm
Minimum cutting height 20 mm 30 mm
Maximum cutting height 95 mm 70 mm
Cutting system 2 discs, 12 blades; floating cut; automatic height adjustment Blade disc with 3 quick-detach razor blades
Power
Runtime 1 h 30 min Not published
Charging time 1 h 15 min 1 h 5 min (best of the models compared)
Battery 10 Ah Li-ion, 18 V, 5.0 Ah
Protection
Rain sensor Yes Yes
IP rating IP66 IPX6 waterproof
Connectivity
Wi-Fi Yes Yes
Bluetooth Yes Yes
4G / cellular Yes No
App Navimow app; Alexa and Google Home integration Dreamehome App
Anti-theft GPS tracking, PIN code, lift and out-of-boundary alarms, proximity unlock Lift-up alert with app notification
Practical
Weight 28.8 kg 12 kg
Dimensions 850 × 610 × 351 mm 643 × 437 × 261 mm
Warranty 3 years (device and charging station); 2 years (battery) Not published
Availability Available Not recently checked

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