Roborock RockMow X115H Review: Wire-Free 4WD for Compact, Steep Lawns
The RockMow X115H is Roborock's entry point into its 4WD X1 family of robot mowers, built for lawns up to about three eighths of an acre with slopes up to 80%. It navigates without a perimeter wire using full-band RTK backed by four cameras rather than LiDAR, runs for 120 minutes on a 6 Ah battery and recharges in about an hour, and includes built-in 4G, GPS theft tracking and a PIN lock. The main trade-offs are a narrow 9.4 in deck, an edge-trimming module sold separately, a battery the owner cannot swap, and a smart home reach that stops at Alexa and Google Home voice control.
- Lawns up to about a third of an acre
- Steep or terraced gardens
- Wire-free installs
- Owners who want built-in cellular and theft tracking
Pros
- Rated for lawns up to three eighths of an acre without a perimeter wire
- All-wheel drive with an 80% slope rating and 3.1 in of obstacle crossing
- Full-band RTK plus quad-vision navigation, so positioning holds under trees and along fences
- Active steering and a dynamic suspension system with a floating cutting deck
- 120 minutes of mowing from a 6 Ah battery with a roughly 60 minute recharge
- Built-in 4G with three years of service included, plus GPS tracking and a PIN lock
- Alexa and Google Home voice control for starting and stopping
- IPX6 body with rain sensing, lift and tilt detection, pet and child recognition and a physical stop button
- Anti-theft alarm, PIN code lock and GPS tracking
- Three year warranty on the main unit
Cons
- No LiDAR, so the RTK reference station has to be mounted with a clear view of the sky
- Edge cutting needs the PreciEdge module, which is sold separately
- 9.4 in cutting deck is narrow for the lawn it is rated to cover
- No Apple Home, SmartThings, Home Assistant or Matter support
- Battery is not owner swappable
- No mowing efficiency figure published, so session length is hard to compare
- Custom pattern mowing is an upcoming over-the-air update rather than a shipped feature
- Weather adaptive scheduling is not documented, so the schedule is fixed apart from the rain delay
Who is the RockMow X115H for?
This is the smallest model in Roborock's all-wheel-drive RockMow X1 range, rated for lawns up to three eighths of an acre, so it suits a typical suburban plot rather than an acre of open ground. All-wheel drive, a rating for slopes up to 80% and 3.1 in of obstacle crossing mean it is built for gardens split by terraces, kerbs and uneven ground that a two-wheel-drive mower would struggle with. Because it maps the lawn without a perimeter wire, it also suits gardens that change shape or that the owner does not want to dig up to bury a cable. It is a fit for anyone who wants a capable, autonomous mower and is content to run it from Roborock's own app with basic voice control, rather than wiring it into a wider smart home.
What the RockMow X115H offers
Navigation is the headline: full-band RTK positions the mower to centimetre accuracy and four cameras add vision, so it holds its line under trees and along fences, identifies people, pets and static obstacles instead of bumping into them, and maps the garden either automatically or by driving it around by hand from the app. The finished map supports multiple zones and no-go areas. Terrain hardware is shared with the larger X130H: four-wheel drive, a patented active steering system, a dynamic suspension system with a floating cutting deck, an 80% slope rating and 3.1 in of obstacle crossing. Power comes from a 6 Ah battery rated at 120 minutes of mowing with a roughly 60 minute recharge, and cutting runs from 1.6 in to 3.5 in with electronic height adjustment from the app. Connectivity covers 2.4 GHz and 5 GHz Wi-Fi, Bluetooth and a built-in 4G module with three years of service included, which keeps GPS theft tracking and remote control working beyond home Wi-Fi. Security layers a PIN code lockout, a high-decibel alarm and GPS tracking, and safety covers a rain sensor, lift and tilt detection, pet and child recognition and a physical stop button. Alexa and Google Home can start and stop a session by voice.
What to know before you buy
The X115H is the standard RTK model, not the LiDAR one: positioning depends on the full-band RTK reference station, so it has to be mounted with a clear view of the sky, and like every RTK mower it can lose accuracy under very dense canopy, which is where the LiDAR model in the same family is the better tool. The 9.4 in cutting deck is the same width as the larger X130H despite covering far less lawn, and Roborock publishes no mowing efficiency figure, so a lawn near the top of the rating is covered over several sessions rather than quickly. Edge cutting is available only with the optional PreciEdge module, which reaches within 1.2 in of a boundary but is sold separately, so without it a strip survives along walls and beds. The battery is not designed to be swapped by the owner. On the smart home side the list is short: Alexa and Google Home can start and stop mowing, but there is no Apple Home, no SmartThings, no Home Assistant and no Matter support, so wider automations are out. Custom pattern mowing is an upcoming over-the-air update rather than a shipped feature, and weather adaptive scheduling is not documented, so the calendar you set is the one it keeps apart from the rain delay.
Is the RockMow X115H worth it?
As the cheapest route into Roborock's 4WD X1 hardware, the X115H keeps the expensive parts of the platform: all-wheel drive with active steering, an 80% slope rating, 3.1 in of obstacle crossing, full-band RTK with quad-vision navigation, a fast 60 minute recharge, included 4G with GPS tracking, and a three year warranty on the main unit. What it gives up against its siblings is lawn coverage, a wider deck and LiDAR, and against the wider category it gives up smart home flexibility and a finished edge without paying extra for the trimmer module. If the garden is small, steep or awkward and voice control from Alexa or Google Home is as far as your setup needs to reach, the package is coherent. If you want a mower wired into Home Assistant or Matter, or a trimmed edge out of the box, look at a different model.
Frequently asked questions
Does the RockMow X115H need a perimeter wire?
No. It maps the lawn without a boundary cable, either automatically or by driving it around the borders from the app. It does need the included full-band RTK reference station mounted with a clear view of the sky, because positioning comes from RTK backed by four cameras rather than LiDAR.
How large a lawn and how steep a slope can it handle?
It is rated for up to three eighths of an acre on slopes up to 80%, using four-wheel drive with an active steering system. It can also cross obstacles up to 3.1 in, so it moves between zones and terraces on its own.
How long does it mow on a charge?
About 120 minutes from its 6 Ah battery, then roughly 60 minutes to recharge before it resumes on its own. The battery is not designed to be swapped by the owner.
Does the RockMow X115H cut the lawn edges?
Only with the PreciEdge cutting module, which is sold separately and trims to within 1.2 in of a boundary. Without it a narrow strip survives along walls, fences and beds and needs a string trimmer.
Is there a subscription for the 4G connection?
The mower has a built-in 4G module with three years of mobile data service included, so there is nothing to pay for connectivity during that period. That link is what keeps GPS tracking and remote control working when the mower is beyond home Wi-Fi.
Does it work with Alexa, Google Home or Home Assistant?
Alexa and Google Home are supported for voice control, so you can start or stop mowing by voice. Home Assistant is not, and there is no Apple Home, SmartThings or Matter support either, so everything else happens in the Roborock app.
