X450
The 5,000 m² Navimow X4: four-wheel drive with dual suspension for 84% slopes, a 430 mm deck with two 180 W motors, a 15 Ah battery for 1,300 m² a charge and two years of cellular data, for €3,199.
Review method: Specification analysis
Our verdict
The X450 is the X4 with the battery to match its deck. Same chassis as the X420: four driven wheels on twin suspensions, eccentric front-wheel steering that Segway says spares the turf, an 84% slope rating, a 7 cm step, a 430 mm deck with two 180 W motors and twelve blades, network RTK fused with a 360° camera and no antenna to install. The difference is 15 Ah rather than 10, which turns 675 m² a charge into 1,300 and 450 m² an hour into 600, so Segway rates it for 5,000 m² in fifteen hours; the second year of cellular data is included too. The rest of the arithmetic is unchanged: 29.2 kg, 85 cm long, 68 dB, no passage width stated, and a price that only makes sense on a lawn that actually needs the second half of it.
Pros
- 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
- 430 mm twin-disc deck, two 180 W motors, 20 to 95 mm cutting height
- Network RTK with a 360° camera, no antenna; 120 zones; two years of cellular data
- Rain sensor, IP66, GPS tracking and PIN, three-year warranty
Cons
- €700 over the X420 for a bigger battery and a year of data
- 29.2 kg and 85 cm long, no passage width stated
- 68 dB, the loudest Navimow
- No LiDAR: positioning needs satellites, with the camera as backup
Best for
- Open lawns from 3,000 to 5,000 m², sloped or rough
- Estates and paddocks where mowing hours per day matter
Not recommended for
- Anything under 2,500 m², where the X420 does the same job for less
- Wooded or enclosed plots
Score breakdown
- Navigation
- 98
- Cutting
- 99
- Terrain
- 100
- Obstacle Avoidance
- 85
- Ease of Use
- 100
- Reliability
- 84
- Features
- 90
- Value
- 35
Specifications
Coverage
- Max lawn area
- 5,000 m² (1.24 acres)
- Zones
- 120
Navigation
- Navigation
- RTK-GNSS + vision
- Boundary wire
- Not required
- Obstacle avoidance
- 3D time-of-flight
Cutting
- Cutting width
- 430 mm
- Cutting height
- 20–95 mm
- Edge cutting
- Yes
Terrain
- Max slope
- 84% (40°)
- Drivetrain
- AWD
Power
- Battery
- Not published
- Runtime
- 2 h 10 min
- Charging time
- 1 h 40 min
Connectivity
- Wi-Fi
- Yes
- Bluetooth
- Yes
- 4G / LTE
- Yes
- GPS
- Yes
Physical
- Weight
- 29.2 kg
- L × W × H
- 850 × 610 × 351 mm
- Noise
- 68 dB
- Weather sealing
- IP66
Support
- Warranty
- 36 months
- Released
- Not published
Power
- Area per charge
- 1,300 m²
- Mowing rate
- 600 m²/h
- Time for the rated area
- 15 hours
- Battery warranty
- 2 years
Connectivity
- Cellular plan
- 2 years free, then €29.90 a year
- On-device display
- 3.5-inch colour LCD
- Smart home
- Alexa, Google Home
Terrain
- Vertical step
- 7 cm
- Steering
- Eccentric front wheels, two steering motors, dual suspension
Cutting
- Cutting motors
- 2 × 180 W
- Floating deck and anti-clogging discs
- Yes
- Cutting height adjustment
- From the app
Obstacles
- Recognised object types
- 200+
- Depth sensing
- ToF sensor alongside the 360° camera
Navigation
- GNSS antenna in the box
- Optional local base station instead of network RTK
Segway Navimow EU 'Spec & Compare' table, X450 column, retrieved 2026-09-09
Where to buy
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Top picks
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Segway's large-lawn flagship: four-wheel drive with dual suspension for 84% slopes, a 430 mm twin-disc deck with two 180 W motors, network RTK with a 360° camera and 120 zones, for 2,000 m² at €2,499.
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All-wheel-drive mower for 1,000 m² with network RTK and three cameras, an 80% slope rating and a second disc that cuts to 5.5 cm from a wall.
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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, 1,400 m² a charge, for €2,699.