Segway Navimow X420 vs Segway Navimow X450

Full specification, side by side

Compare	Segway Navimow X420	Segway Navimow X450
	89/100 ≈ $2,720Price in the manufacturer's shop	88/100 ≈ $3,480Price in the manufacturer's shop
	Highest Verdict Score
	Check price	Check price
At a glance
Leads on	Value	No subscore lead
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	1,300 m² and 130 minutes a charge from a 15 Ah battery; 600 m² an hour 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
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	The extra money over the X420 buys a bigger battery and a second year of data, nothing else 29.2 kg and 85 cm long, no passage width stated 68 dB, the loudest Navimow
Best for	Large, sloped or rough lawns around 2,000 m² Thick grass and long cutting heights that a 22 cm deck cannot manage	Open lawns from 3,000 to 5,000 m², sloped or rough Estates and paddocks where mowing hours per day matter
Score breakdown
Verdict Score	89/100	88/100
Navigation	97	97
Cutting	99	99
Terrain	100	100
Obstacle Avoidance	85	85
Ease of Use	100	100
Reliability	83	83
Features	90	90
Value	35	26
SpecificationsOnly differences 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)	5,000 m² (1.24 acres)
Zones	120	120
Navigation
Navigation	RTK-GNSS + vision	RTK-GNSS + vision
Boundary wire	Not required	Not required
Obstacle avoidance	3D time-of-flight	3D time-of-flight
GNSS antenna in the box	Optional local base station instead of network RTK	Optional local base station instead of network RTK
Cutting
Cutting width	430 mm	430 mm
Cutting height	20–95 mm	20–95 mm
Edge cutting	Yes	Yes
Cutting motors	2 × 180 W	2 × 180 W
Floating deck and anti-clogging discs	Yes	Yes
Cutting height adjustment	From the app	From the app
Terrain
Max slope	84% (40°)	84% (40°)
Drivetrain	AWD	AWD
Vertical step	7 cm	7 cm
Steering	Eccentric front wheels, two steering motors, dual suspension	Eccentric front wheels, two steering motors, dual suspension
Power
Battery	Not published	Not published
Runtime	1 h 30 min	2 h 10 min
Charging time	1 h 15 min	1 h 40 min
Area per charge	675 m²	1,300 m²
Mowing rate	450 m²/h	600 m²/h
Time for the rated area	8 hours	15 hours
Battery warranty	2 years	2 years
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	2 years free, then €29.90 a year
On-device display	3.5-inch colour LCD	3.5-inch colour LCD
Smart home	Alexa, Google Home	Alexa, Google Home
Physical
Weight	28.8 kg	29.2 kg
L × W × H	850 × 610 × 351 mm	850 × 610 × 351 mm
Noise	68 dB	68 dB
Weather sealing	IP66	IP66
Support
Warranty	36 months	36 months
Released	Not published	Not published
Obstacles
Recognised object types	200+	200+
Depth sensing	ToF sensor alongside the 360° camera	ToF sensor alongside the 360° camera

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