Is the Yarbo Y40 Lawn Mower Pro or the Segway Navimow X450 better?

Wire-free. Tri-frequency Network RTK fused with 360° camera SLAM and VIO, with no antenna required where network coverage exists (a GNSS antenna is included). All-wheel drive.

Wire-free. RTK GNSS from the included Data Center base station, or network RTK where coverage exists, with binocular cameras, ultrasonic sensors and a bumper for obstacles; rubber tracks rather than wheels. A modular yard robot: the Y40 core also takes snow-blower, blower and trimmer modules.

Cutting

43.2 cm (17.0 in) cut, 19 to 102 mm (0.7 to 4.0 in) height, about 68 dB

50 cm (19.7 in) cut, 20 to 100 mm (0.8 to 3.9 in) height, about 60 dB

Battery runtime

110 min

120 min

Rain

Rain sensor plus weather-forecast adaptation; heads home when either reports rain

Rain detection (IPX5 on the core's spec)

Anti-theft

GPS tracking, out-of-boundary and lift alarms, Apple Find My (locatable even powered off), Proximity Unlock and PIN code

4G GPS tracking, geofence alerts and movement notifications (4G free for a year, then a paid plan)

Connectivity

Bluetooth, Wi-Fi and 4G (2 years free on the X450, then $32.90 a year); Alexa and Google Home

4G, Wi-Fi, Wi-Fi HaLow and Bluetooth

Best for

Estate lawns Steep & terraced

Released

2026

2025

Brand

Segway

Yarbo

A check marks the lower price, the higher score, the larger coverage, and the steeper slope. Our pick below is derived from those same specs; the right choice still depends on your lawn, your budget, and how you'll use it.

Our pick

Which to buy

Best buyYarbo Y40 Lawn Mower Pro

For most lawns, the Yarbo Y40 Lawn Mower Pro is the better buy at $5,499: it covers up to 24,281 m² (6 acres). Step up to the Segway Navimow X450 only if steeper than 70%.

From $5,499

The bottom line

What actually differs

Segway Navimow X450 has the lower price ($2,999).
Yarbo Y40 Lawn Mower Pro covers the most lawn (24,281 m² (6 acres)).
Segway Navimow X450 handles the steepest slopes (up to 84%).
Segway Navimow X450 is out of stock at every tracked seller right now.

Go deeper

Open the full record

Segway Navimow X450 Yarbo Y40 Lawn Mower Pro

BestRobotMower.co is an independent informational comparison site, not a manufacturer or a retailer. Specifications and prices are curated from public sources and can change or be incomplete. Always confirm the current spec, price, and availability with the manufacturer or seller before buying. Coverage and slope figures are rated maximums on an open lawn; real performance depends on your yard.