Segway Navimow X390N Robotic Lawn Mower ｜2.5 acres

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Segway Navimow X390N｜2.5 Acres
Segway Navimow X390N Robotic Lawn Mower ｜2.5 acres

Covers up to 2.5 acres with cm-level EFLS 3.0 accuracy, wire-free setup, ultra-fast charging, smart obstacle avoidance, and quiet 60 dB(A) operation.

$4,999.00

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We keep a large inventory at our Janesville and Hayward, Wisconsin locations. Even if a product shows as temporarily out of stock, we typically have new shipments arriving and can deliver or ship to you within 10 days or less. Go ahead and place your order — we’ll get it to you fast.

X Series Mower Features and Benefits:

No Perimeter Wires To Bury

Easy, Wire-Free Setup

No digging required

With the X3 Series, there are no perimeter wires to bury, so you won’t have to dig up your yard. Installation is fast, clean, and simple. Ballard Power Works gets your mower running quickly, letting you enjoy a perfect lawn without the hassle.

Built for the Long Haul

Coverage you can count on

our X3 Series mower includes a full 3 year warranty on the mower and a 2 year warranty on the battery. When you buy from Ballard Power Works, we handle all warranty work locally, so you’ll never be stuck dealing with the hassle of sending your mower away for repairs.

Ultra Quiet

Peaceful Lawn Care

Mows quietly, day or night

The X3 Series runs at just 60 dB(A) -about the gentle hum of an AC unit. It’s quiet enough to mow at night without disturbing your rest. As a fully autonomous mower, it keeps your lawn perfect while you relax or enjoy the yard. You’ll barely notice it’s there, but you’ll always notice the results.

Auto Recharge

Always Ready to Mow

Works while you relax

The X3 Series automatically returns to its charging station when the battery runs low, then resumes mowing right where it left off. You set the schedule and cutting height and it takes care of the rest, keeping your lawn perfect whether you are home or away.

Made For Complex Lawns

Navigates with precision

The X3 Series is built to handle lawns with curves, slopes, and multiple zones. Its advanced navigation system maps your yard and adapts to changes, ensuring a consistent cut across every corner. Ballard Power Works brings you a mower that thrives where others struggle.

Voice & App Control

Mow With Your Voice

Alexa, Google, and App

Control your X3 Series mower with simple voice commands through Alexa or Google Home, or manage every detail from the Navimow app. Start, stop, or schedule mowing with ease. It integrates seamlessly into your smart home, giving you effortless control anywhere.

Hill Power

Handles Tough Slopes

Stable up to 27°

The X3 Series handles slopes up to 27° with ease. Its Traction Control System precisely manages wheel grip to prevent slipping, even during high acceleration or on slick surfaces. You get safe, stable mowing across challenging terrain without compromise.

Obstacle Safe

Sees and Avoids Hazards

Protects pets, people, and more

The X3 Series uses advanced VisionFence technology to detect over 200 objects, from lawn furniture and toys to pets, wildlife, and even suspended items like swings or balloons. With a 300° wide-angle view, it slows when people are near and adjusts its path in milliseconds to protect animals. You get safe, worry-free mowing without sacrificing performance.

Night Mowing

Clear Vision After Dark

Safe low-light operation

The X3 Series is built for night work with enhanced vision perception, extending distance from 3.9 to 5.9 feet and widening the range to 150 degrees. It sees more in low light, delivering safe and reliable mowing performance long after the sun sets.

Weather Smart

Mows in Ideal Conditions

Smart weather adaptation

The X3 Series monitors the forecast and only mows when conditions are right. If rain or wet grass is detected, it pauses and returns to its charging station, resuming when the weather improves. You can customize mowing schedules and zones to fit your routine, ensuring healthy, damage-free lawn care year-round.

Why Choose the Navimow X390N?

The Segway Navimow X390N is the most powerful model in the Navimow lineup, designed to handle lawns up to 2.5 acres with professional precision. Featuring advanced EFLS 3.0 positioning technology, wire-free setup, and AI-powered obstacle avoidance, the X390N makes large-scale lawn care easier, safer, and more efficient than ever.

Easy, Wire-Free Setup

With AI-assisted mapping, the X390N automatically scans and maps your yard. Set boundaries and mowing zones in just a few steps. The smart antenna tool recommends the best placement for the charging dock and base station, ensuring strong signal coverage and reliable docking.

EFLS 3.0 Precision Navigation

Powered by RTK, VSLAM, and VIO technology, the X390N achieves centimeter-level accuracy even in areas with trees, buildings, or weak signals. Dual base station support ensures wide coverage and uninterrupted operation across complex layouts and large properties.

Extended Runtime with Fast Charging

The 12.8Ah battery provides up to 240 minutes of mowing per charge and covers 1.35 acres per day. With ultra-fast 100-minute recharge time, it gets back to work quickly, maximizing productivity for large lawns.

Advanced Obstacle and Safety Features

VisionFence and a 300° wide-angle view allow the X390N to detect over 200 obstacles including pets, people, furniture, and suspended items. Animal-Friendly Mode ensures a safe buffer around pets and wildlife by adjusting mowing paths automatically.

Slope-Climbing Power and Traction Control

The X390N climbs slopes up to 27° with ease. Its Traction Control System (TCS) prevents wheel slip and maintains stability on steep or slippery surfaces, making it one of the best robotic mowers for hilly properties.

Quiet, All-Weather Performance

At just 60 dB(A), the X390N is quieter than most appliances, so it can mow day or night without disruption. With IP66 waterproofing, UV protection, and weather-adaptive technology, it pauses during rain and resumes once conditions improve for year-round reliability.

Smart Control and Connectivity

Manage mowing with the Navimow app, adjusting schedules, cutting height (0.8 to 2.8 inches), and checking status remotely. Alexa and Google Home integration allow voice control. Bluetooth, Wi-Fi, and 4G are built in with five years of free connectivity included.

Premium Cutting Performance

A six-blade cutting system with a 9.3-inch deck delivers clean, uniform cuts across large areas. Designed for efficiency, it prevents clumping and keeps your lawn looking professionally maintained.

Added Innovation and Customization

The X390N supports unique features like Doodle mode for custom mowing patterns. Its expansion bay allows for future accessories such as trimmers, fertilizer spreaders, or mosquito repellent modules, making it one of the most versatile robotic mowers available.

The Segway Navimow X390N is the ultimate solution for homeowners with large, complex properties who want precision, convenience, and peace of mind in lawn care. From wire-free setup to AI-powered navigation, obstacle avoidance, and quiet, all-weather operation, it is built to handle what other mowers cannot.

MFG Part Number: AA.12.03.08.0003  UPC Code:  860012827534

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X Series User Manual
Get My X Series Serviced

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Segway Navimow X390N Frequently Asked Questions (FAQ’s):

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Does the Segway Navimow X390 need Wi-Fi to work?

Wi-Fi is not required for the X390 to operate, but it helps with convenience. The mower communicates primarily via cellular connection to update mowing schedules, GPS data, and firmware. However, having Wi-Fi access during setup or when your phone is nearby can speed up updates and improve app connectivity. Either way, the mower can run its schedule and mapping without relying on home Wi-Fi.

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How does the X-Series perform in real yards with trees and obstacles?

Owners report that the X-Series handles complex yards very well, even with multiple trees, gardens, or uneven layouts. Mapping out obstacles in the app improves mowing speed and accuracy.

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Does the X-Series really save money?

Absolutely. Customers often mention their Navimow pays for itself within a season by eliminating weekly lawn care service costs.

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What is the runtime and coverage of the X390?

X390 — The Top of the Line

The X390 is the flagship of the X Series, built for large and demanding lawns. On a single charge, it can run for up to 240 minutes (about 4 hours) and is designed to cover areas up to 10,000 m² (about 2.5 acres). When it needs power, the mower fully recharges in approximately 100 minutes before resuming work on its own.

The X390 is the top model in the X Series, designed for large properties. On a single charge, it runs for up to 240 minutes (about 4 hours) and is rated to handle lawns up to 10,000 m² (around 2.5 acres). When the battery runs low, the mower automatically returns to its dock, recharges in about 100 minutes, and then continues mowing where it left off.

That means your yard always gets done, even if it takes multiple sessions. And really, who cares how long it takes when you’re not the one mowing? The X390 quietly works in the background, trimming a little grass at a time for healthier growth and a consistently fresh-looking lawn.

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What yard size is the Segway Navimow X390N designed for?

The Segway Navimow X390N is rated for up to 2.5 acres, which equals about 10,900 square yards (roughly 9,000 m²) under ideal conditions. To put that into perspective, a standard American football field (excluding end zones) is about 5,300 square yards, so the X390N can maintain an area equal to two full football fields.

As the most powerful Navimow model, the X390N is excellent at handling large and complex properties, including lawns with trees, landscaping features, multiple zones, and slopes. The 2.5-acre rating assumes a mostly open, flat lawn, but even with dense layouts or challenging terrain, the X390N provides strong performance and efficient coverage.

For properties that don’t require this much capacity, you may also want to look at smaller models:

Segway Navimow X330N – Suitable for up to 1 acre

Segway Navimow X350N – Covers up to 1.5 acres

Not sure what you need? Use our full guide to choose the right model based on your lawn’s layout and features:

👉 Robotic Mower Buying Guide

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Can the Segway Navimow X390 handle multiple mowing zones or separated lawn areas?

Yes. The X390 fully supports multiple mowing zones through the Segway Navimow app. If your property has separate lawn areas divided by driveways, sidewalks, or landscaping, you can map each section and assign it as its own zone. The mower will then follow your programmed schedule for each zone. This feature is especially valuable for larger, more complex properties with front, back, or side lawns that are not directly connected.

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My yard has hills. Will the Segway Navimow X390 still work?

Yes. The X390 is our most powerful model and is built to take on challenging terrain. It can climb slopes up to 50% (about 27 degrees) in the main mowing area with ease. Along lawn edges and boundary zones, it manages up to 25% (about 14 degrees) to ensure precise turns and safe operation near drop-offs or transitions.

For yards with steep or complex hills, the X390 is the best choice in the Navimow lineup. You can also use the app to adjust virtual boundaries or divide your lawn into separate zones to optimize performance on sloped sections.

Not Sure Which Mower X Series Mower Is For You?

Read Our Mower Buying Guide