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Segway Navimow X390 specifications and in-depth review

Segway Navimow X390

Manufacturer: Segway

The Segway Navimow X390 is a fully electric robotic lawn mower designed for large residential or estate-scale gardens, offering coverage of up to 12,000 m² with a recommended working area of 10,000 m². It connects via Wi-Fi and Bluetooth to a dedicated smartphone app, supports remote control, and integrates with both Amazon Alexa and Google Assistant for voice-based operation.

Weighing 19,900 g and measuring 698 × 550 × 307 mm, the Navimow X390 operates at a working capacity of 320 m²/h and handles slopes of up to 50%. Its cutting height is adjustable across six settings, ranging from 20 mm to 70 mm, with a cutting width of 23.7 cm. The mower includes obstacle and rain sensors, a frost sensor, auto-docking, anti-theft protection, mulching, and weather-adaptive scheduling. Running on an 11 V, 42 W removable battery, it reaches a full charge in approximately 1.67 hours and operates at 60 dB standard or 50 dB in eco mode.

Pros
  • Covers up to 12,000 m² of lawn area, with a recommended working surface of 10,000 m², making it suitable for large properties
  • Handles slopes of up to 50%, allowing it to operate on significantly uneven terrain
  • Includes a frost sensor, rain sensor, and weather adaptation, enabling it to respond to changing outdoor conditions without manual input
  • The battery is removable and charges fully in approximately 1.67 hours, reducing operational downtime
  • Supports scheduling, auto-docking, and obstacle detection, allowing largely unsupervised operation
  • Compatible with both Amazon Alexa and Google Assistant, and controllable via a dedicated smartphone app over Wi-Fi or Bluetooth
Cons
  • At 19,900 g, the unit is relatively heavy, which can make manual repositioning or transport more physically demanding
  • Operating noise of 60 dB at standard mode may be noticeable in quieter residential environments
  • With only six cutting height settings between 20 mm and 70 mm, users requiring finer incremental adjustments may find the range limiting
  • A working capacity of 320 m²/h means covering the full recommended 10,000 m² area requires multiple extended mowing cycles
Who is this for?

This mower is well-suited to owners of large properties up to 12,000 m² who need autonomous lawn maintenance with minimal daily involvement. Its scheduling capability, auto-docking, and weather-adaptive sensors make it a practical fit for users who want a largely hands-off routine. Those with sloped or uneven terrain will also find it capable, given its 50% slope performance, and users already invested in smart home ecosystems through Alexa or Google Assistant will benefit from its voice control integration.

Who is this NOT for?

Users with small or medium-sized gardens are unlikely to make full use of the mower's large-area coverage capacity, and its 19,900 g weight makes it cumbersome to move manually between disconnected lawn sections. Those who require precise grass length control may find the six-step cutting height range between 20 mm and 70 mm insufficiently granular for their needs. Additionally, users in environments where noise levels are a strict concern should note that at 60 dB in standard mode, operation in quiet residential settings during certain hours could be disruptive.

General info:

audible noise 60 dB
Has a dedicated smartphone app ✓
supports Wi-Fi ✓
audible noise (eco) 50 dB
Has Bluetooth ✓
cutting width 23.7 cm
Is electric ✓
height 307 mm
recommended area 10000 m²
supports a remote smartphone ✓
lawn area coverage 12000 m²
thickness 698 mm
volume 117857.3 cm³
weight 19900 g
width 550 mm

The Segway Navimow X390 is a fully electric robotic lawn mower with a maximum lawn area coverage of 12,000 m² and a recommended surface area of 10,000 m², making it suited for large gardens. It has a cutting width of 23.7 cm and operates at 60 dB under standard conditions, dropping to a quieter 50 dB in eco mode. The unit weighs 19,900 g and measures 698 mm in depth, 550 mm wide, and 307 mm tall, giving it a volume of approximately 117,857.3 cm³. Connectivity is handled through built-in Wi-Fi and Bluetooth, and it supports control via a dedicated smartphone app with remote smartphone functionality.

Features:

has an obstacle sensor ✓
Has a rain sensor ✓
can be scheduled ✓
has anti-theft features ✓
auto docking ✓
works with Alexa ✓
compatible with Google Assistant ✓
Has a display ✓
has a frost sensor ✓
Has mulching feature ✓
adapts to weather conditions ✓
works in rain ✓

The Navimow X390 comes equipped with a broad set of features designed to handle varied conditions and reduce manual intervention. It includes an obstacle sensor, a rain sensor, and a frost sensor, and is capable of adapting to weather conditions while remaining operational in rain. Mowing sessions can be scheduled in advance, and the unit returns to its base automatically via auto-docking. A built-in display provides on-device feedback, and anti-theft protection adds a layer of security. The mower also supports mulching and is compatible with both Amazon Alexa and Google Assistant for voice control.

Performance:

slope performance 50%
mowing time 240 m
number of cutting height settings 6
maximum cutting height 70 mm
minimum cutting height 20 mm
working area capacity 320 m²/h

In terms of performance, the Navimow X390 delivers a working area capacity of 320 m²/h and a mowing time of 240 minutes per cycle. It manages slopes of up to 50%, giving it solid capability on uneven terrain. Cutting height is adjustable across six settings, spanning a range from a minimum of 20 mm to a maximum of 70 mm, allowing for flexible grass length management across different lawn conditions.

Power:

charge time 1.67 hours
has a removable battery ✓
voltage 11V
wattage 42W

The Navimow X390 runs on an 11 V system with a power draw of 42 W, and its removable battery can be taken out for separate charging or replacement. A full charge is reached in approximately 1.67 hours, keeping downtime between mowing sessions relatively short.

Final Verdict

The Segway Navimow X390 is a capable robotic lawn mower built around one clear strength: handling large, complex outdoor spaces with a high degree of autonomy. Its 12,000 m² coverage capacity, combined with slope handling up to 50%, weather-responsive sensors, and smart home integration, make it a coherent package for property owners who need reliable, low-intervention lawn care at scale. That said, its bulk and relatively simple cutting height increments mean it is best appreciated in contexts where those trade-offs are acceptable. For large-garden users seeking an autonomous, connected mowing solution, the Navimow X390 presents a well-rounded and technically grounded option.

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