Best Robot Lawn Mower Today [2021]

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Best Robot Lawn Mower: Worx WG794

WORX WG794 Landroid M Cordless Robotic Lawn Mower with Rain Sensor & Safety Shut-Off

After running nearly two dozen robots across more than an acre of grassy field, we’ve determined that the best overall robot lawn mower is the Worx WG794.

This robot uses high-tech navigation software to make intricate cuts around trees and edges by delivering 2,800 micro-cuts per minute.

Here’s a quick look at the WG794’s key specifications—

  • 28V Battery
  • 0.25-acre Coverage
  • 7-Inch Cutting Diameter
  • Worx Landroid App

The WG794 draws power from a 28V battery. It powers the seven-inch blade to slice effortlessly through moderately tall blades of grass and weeds. Using the Landroid app is the easiest way to control the WG794.

This robot lawn mower comes with 590 feet of boundary wire and 200 pegs to set it up. It takes a while to set the wires to cover the perimeter of your property, but after that, it’s smooth sailing.

Upon turning on, the WG794 will automatically create a mowing schedule. The WG794 mows in a random but planned-out trajectory to cover every square foot (up to ¼ of an acre).

Watch this video to see what the WG794 is capable of:

 

Pros

  • Ready to roll out of the box
  • Powerful and efficient
  • Customizable features in Landroid App
  • Automatically hides from rain

Cons

  • Setting up boundary wire can take a long time

The WG794 comes with all of the customizable features you would want in a robot lawn mower. It handles flat surfaces like a beast, and with very few maintenance problems even after years of use.

There’s no denying that mowing lawns is a painstaking chore. In fact, some people go as far as hiring contract workers to do it for them.

But if you have a robot lawn mower, you can say goodbye to loud machines and hello to the future.

We’ve researched and tested over 20 robot mowers so that we could create this best robot lawn mower list for you.

Best Robot Lawn Mower Compared

Here’s a comparison between Best Robot Lawn Mower:

Product ImageProduct NameFeaturesPrice
WORX WG794 Landroid M Cordless Robotic Lawn Mower with Rain Sensor & Safety Shut-OffWorx WG794
  • Battery: 28v
  • Area Coverage: 0.25 acres
  • Cutting Diameter: 7 in.
  • USP: Smart controls
Husqvarna 220 AC
  • Battery: 18v
  • Area Coverage: 0.5 acres
  • Cutting Diameter: 8.7 in.
  • USP: Anti-theft alarm and 3-blade mowing
WORX Landroid L 20V Robotic Lawn Mower 1/2 Acre / 21,780 Sq. Ft Power Share - WR150 (Battery & Charger Included)Robomow RX20
  • Battery: 12v
  • Area Coverage: 0.5 acres
  • Cutting Diameter: 7 in.
  • USP: MOWS IN DIFFERENT ZONES
WORX Landroid L 20V Robotic Lawn Mower w/GPS 1/2 Acre / 21,780 Sq.Ft Power Share - WR153 (Battery & Charger Included)Worx WR150
  • Battery: 28v
  • Area Coverage: 0.25 acres
  • Cutting Diameter: 7 in.
  • USP: Fully automated
WORX Landroid M 20V Robotic Lawn Mower w/GPS 1/4 Acre / 10,890 Sq.Ft Power Share- WR143 (Battery & Charger Included)Worx WR153
  • Battery: 28v
  • Area Coverage: 0.5 acres
  • Cutting Diameter: 7 in.
  • USP: NAVIGATES NARROW PATHS
WORX Landroid M 20V Power Share Robotic Lawn Mower 1/4 Acre / 10,890 Sq.Ft Power Share- WR140(Battery & Charger Included)Worx WR143
  • Battery: 28v
  • Area Coverage: 0.5 acres
  • Cutting Diameter: 7 in.
  • USP: TACKLES OBSTACLES
Husqvarna AUTOMOWER 310, Robotic Lawn MowerWorx WR140
  • Battery: 28v
  • Area Coverage: 0.25 acres
  • Cutting Diameter: 7 in.
  • USP: CUSTOMIZED MOWING SCHDULES
Robomow RX20 Battery Powered Mower-7-Inch Mowing Width-Smart Robot Lawn Mower for Small Yards, GreenHusqvarna AUTOMOWER 310
  • Battery: 18v
  • Area Coverage: 0.25 acres
  • Cutting Diameter: 8.7 in.
  • USP: Rated IPX4 water-resistant
Husqvarna Automower 430XH Robotic Lawn Mower, Medium – Large Yards (0.8 Acre)Husqvarna Automower 430XH
  • Battery: 18v
  • Area Coverage: 0.8 acres
  • Cutting Diameter: 9.45 in.
  • USP: 24 degree incline
Husqvarna 450XH Automower Robotic Lawn Mower High CutHusqvarna 450XH
  • Battery: 18v
  • Area Coverage: 1.25 acres
  • Cutting Diameter: 9.45 in.
  • USP: Features GPS navigation and tracking

Reviews of Top Robot Lawn Mower

After meticulous testing, we have found several more reliable robot lawn mowers.

Best Premium- Husqvarna 220 AC

best overall rating

Key Specifications

  • 18V Battery
  • 0.5-Acre Coverage
  • 8.7-Inch Cutting Diameter
  • 3-Razor Mowing

The 220 AC is an ultra-efficient robot lawn mower that’s whisper-quiet to boot. It comes with an 18V battery that supplies around 45 minutes of nonstop mowing.

When its battery runs low, the 220 AC will make a beeline for its charging dock.

The tri-blade setup is one of the 220 AC’s most unique features. It slices and dices tall blades of grass to compostable shreds, giving moss a hard time to latch on and grow.

The steel razors cut up to 8.7 inches in diameter to mow more lawn with each pass.

If you’re worried about your premium robot being stolen, you can toss your concerns away. The 220 AC comes with an anti-theft alarm that triggers when it’s several feet away from the boundary wire.

Plus, a pin lock ensures no authorized users (e.g., children) can activate the robot.

Pros

  • Extra-powerful mowing
  • Whisper-quiet operation
  • Built for mowing in any weather
  • Comes with an anti-theft alarm

Cons

  • Charging times could be quicker

Husqvarna-quality products, such as the 220 AC, come at a price, but it’s worth it if you’re willing to splurge on better performance and convenience.

Worx WR150

best overall rating WORX Landroid L 20V Robotic Lawn Mower 1/2 Acre / 21,780 Sq. Ft Power Share - WR150 (Battery & Charger Included)

Key Specifications

  • 28V Battery
  • 0.5-Acre Coverage
  • 7-Inch Cutting Diameter
  • Rain Sensor

The WR150 is similar to the WR794 in many ways. The biggest difference is its 100% more coverage per charge.

You can leave the WR150 to do your bidding without worrying about rain frying its wires. When it begins pouring, the protective plastic shell will keep its inner workings safe as it seeks shelter in its charging dock.

Although the WR150 can cover twice as much yard surface as the WG794, it uses the same battery, thereby spending less battery mowing and more on moving.

In terms of performance, it does an excellent job, but it can take multiple passes to clear everything up.

This video will show you what the WR robots are all about:

 

Pros

  • Great edge-mowing performance
  • Covers lots of surface area per charge
  • App control for added convenience
  • Hides from the rain

Cons

  • May take multiple passes to fell taller blades of grass

Overall, the WR150 is an excellent robotic lawn mower. Since the robot follows a schedule, the need for multiple passes is nearly a non-issue.

Worx WR153

best overall rating WORX Landroid L 20V Robotic Lawn Mower w/GPS 1/2 Acre / 21,780 Sq.Ft Power Share - WR153 (Battery & Charger Included)

Key Specifications

  • 28V Battery
  • 0.5-Acre Coverage
  • 7-Inch Cutting Diameter
  • Find My Landroid Feature

The WR153 star feature is the included GPS module called Find My Landroid. If your robot is picked up and moved out of the boundary limits, it’ll immediately alert you of its position.

This unit may take numerous passes to mow every blade of grass to your exact height specifications. If you would like more runtime per charge, consider upgrading the battery to the 40V version.

Another thing to note is that this unit, for whatever reason, is more sensitive to rain drops. You may need to manually fetch it from your lawn during heavy showers.

Pros

  • Excellent at mowing flat surfaces
  • Smart navigation along edges
  • Customizable mowing schedule
  • Find My Landroid help seek out its position when removed

Cons

  • Doesn’t deal with rain as well as other Worx robots

For those living in hot places, the WR153 is your safest option. Its anti-theft alarm lets you track it when forcefully removed from your property. In terms of performance, it’ll chop grass like it was nothing.

Worx WR143

best overall rating WORX Landroid M 20V Robotic Lawn Mower w/GPS 1/4 Acre / 10,890 Sq.Ft Power Share- WR143 (Battery & Charger Included)

Key Specifications

  • 28V Battery
  • 0.25-Acre Coverage
  • 7-Inch Cutting Diameter
  • GPS Module

Don’t get bored with seeing Worx robots yet since there’s one more after this. The WR143 is another 0.25-acre model that runs on the same 28V battery. This model has the added benefit of a GPS tracker.

The WR143’s black and orange protective casing works much better than the previous item at keeping its inner components dry.

When the rain sensors detect water droplets from above, it’ll seek shelter in its charging dock until it’s safe to come out.

Pros

  • Excellence with each pass
  • Avoids obstacles
  • Anti-theft GPS system
  • Better water-resistant design

Cons

  • Boundary wire can cut through skin

The WR143 delivers the same mowing quality as the other 0.25-acre models but with the benefit of an anti-theft system. Take extra care when laying out the boundary wire.

Worx WR140

best overall rating WORX Landroid M 20V Power Share Robotic Lawn Mower 1/4 Acre / 10,890 Sq.Ft Power Share- WR140(Battery & Charger Included)

Key Specifications

  • 28V Battery
  • 0.25-Acre Coverage
  • 7-Inch Cutting Diameter
  • Landroid App Compatibility

The final Worx robotic lawn mower on our list is the WR140, the least expensive of the bunch. However, its relatively budget-friendly price tag does not mean substandard mowing performance.

It comes with the same 28V battery pack to send the black-and-orange robot around lawns of up to 0.25 acres. In a single charge, it should have touched every square without leaving a blade of grass intact.

This model works in rain and shine, but wet grass can impair its wheels’ traction. It slips and slides in the rain, so we recommend recalling it until the weather has cleared.

Pros

  • Fantastic mowing performance
  • Smartphone app makes it more convenient to control
  • Avoids obstacles
  • Ready to roll out of the box

Cons

  • Wheels can slip on moist surfaces

As long as the WR140 rolls over dry grass, there’s nothing you need to worry about. Every pass of the WR140 will mow your lawn to the desired height.

Husqvarna Automower 310

best overall rating Husqvarna AUTOMOWER 310, Robotic Lawn Mower

Key Specifications

  • 18V Battery
  • 0.25-Acre Coverage
  • 8.7-Inch Cutting Diameter
  • Automower Connect App

Now back to Husqvarna. The Automower 310 is an excellent small-scale robot. Its 18V motor drives the three-razor system to cut grass with ease.

Its 8.7-inch cutting diameter reduces the number of passes needed to complete its mowing task.

The wheels work somewhat well on sloped surfaces, but it excels on flat ground, both wet and dry. The unit is rated IPX4 so it doesn’t need a rain sensor. Don’t be surprised to see its LEDs shining bright in the middle of heavy rain.

Pros

  • Reliable mower, even on slight inclines
  • Long-lasting battery and rapid charging
  • Controllable via Bluetooth Automower Connect app
  • Rated IPX4 water-resistant

Cons

  • Only made for smaller gardens

The Husqvarna 310 is an excellent small lawn mower. Rain or shine, the 310 will happily chomp through grassy fields without slipping.

Cheapest Robotic Lawn Mower

Robomow RX20 Battery Powered Mower-7-Inch Mowing Width-Smart Robot Lawn Mower for Small Yards, Green

The convenience of robotic lawn mowers doesn’t have to come at an extravagant price. Check out the Robomow RX20 to see what we mean.

Here are the RX20’s key specifications—

  • 12V Battery
  • 0.5-Acre Coverage
  • 7-Inch Cutting Width
  • Mows in Different Zones

Our pick of the cheapest robotic lawn mower is the Robomow RX20. Looking at its features, we were impressed that this unit doesn’t cost more than it does.

It sports a 12V battery that sends the robot on long journeys to cover 0.5 acres of grassy fields. It uses seven-inch blades to chop thick blades of grass in a single swipe, leaving a trail of fine clippings.

The RX20 has a zone-mowing feature. To access this feature, you need to set up the boundary wire to create different areas. When one zone has been thoroughly mowed, it’ll hop onto the next.

This animated video will show you what the RX20 can do:

 

Pros

  • Reliable robot for smaller yards and gardens
  • Durable mowing blade
  • Anti-collision sensors keep it intact for longer
  • Hides when it rains

Cons

  • No smartphone app

You can get a robotic lawn mower without breaking the bank. The Robomow RX20 is an incredibly efficient robot that handles moderate mowing jobs effortlessly.

Best Robotic Lawn Mower for Hills / Slopes

Husqvarna Automower 430XH Robotic Lawn Mower, Medium – Large Yards (0.8 Acre)

For those of you with backyard hills, we’ve got something for you: the Husqvarna Automower 430XH.

Here’s a quick look at the 430XH’s key specs—

  • 18V Battery
  • 0.8-Acre Coverage
  • 9.45-Inch Cutting Path
  • 24° Incline

The Husqvarna Automower 430XH is on a whole other level. Like the premium 220 AC, the Automower 430XH promises excellent mowing capabilities with every pass.

Best of all, the 430XH is able to climb up slopes. It has a max incline of 24°, making it several times more reliable than much of its competition, even other Husqvarna models.

Plus, if you don’t feel like whipping your phone out every time you want to command the 430XH, simply shout at Alexa and she’ll relay your orders.

Pros

  • Compatible with smartphone app and Alexa
  • Wide cutting path means quicker mowing
  • Continues mowing in the rain
  • Alerts owner when forcibly removed from properly boundary

Cons

  • Wheels could be grippier

Husqvarna promises excellence in every Automower, and the 430XH does not disappoint. For sloped surfaces, the 430XH is the most reliable robot on the market.

Best Robotic Lawn Mower for Large Yards

Husqvarna 450XH Automower Robotic Lawn Mower High Cut

As for those with larger backyards, you might be interested in a robot lawn mower that covers more mows over an acre per charge. We recommend the Husqvarna 450XH.

Here are the 450XH’s key specifications at a glance—

  • 18V Battery
  • 1.25-Acre Coverage
  • 9.45-Inch Cutting Diameter
  • Anti-theft alarm

Despite using the same 18V battery, the 450XH is capable of traveling up to 1.25 acres of grassy yards before needing to recharge. Best of all, its super-efficient motor does not sacrifice mowing quality for excess runtime.

The 450XH is equipped with a 9.45-inch razor to saw wider paths. This ultimately means fewer passes are needed to cover humungous yards, thereby giving it longer rest periods between jobs.

Not only can you control the 450XH via the Bluetooth app, but you can also send voice commands to Alexa. She’ll keep the 450XH in the loop at all times.

Pros

  • Compatible with smartphone app and Alexa
  • Best for lawns over an acre wide
  • Works well on slopes
  • Sensitive anti-theft triggers

Cons

  • App could be more user-friendly

For the largest jobs, you’ll need the toughest robot, and the 450XH is more than ready for whatever challenges you put it against.

FAQs

Even though robot lawn mowers have been around for quite some time, many people aren’t fully aware of what they can do. Here, we’ll answer some of the most FAQs about robot lawn mowers.

Are robot lawn mowers any good?

Yes, they are. Many professional landscaping businesses rely on robot lawn mowers to handle simple mowing while workers spend their time and effort on more demanding tasks. Homeowners can also benefit from robot lawn mowers by reducing the workload (and fees) of professional help while also freeing up their hands for non-mowing related business.

How long do robot lawn mowers last?

On average, modern robots (those released at max ten years ago) can last for anywhere between eight and ten years. If you keep the robot out of rain and heat, it can last for several more years. Make sure to swap out the batteries with fresh ones after five or six years to keep the robot running like brand new.

How often should you run your robot lawn mower?

That depends on how quickly your grass grows. However, it really doesn’t matter how often you run it since 1) they are whisper-quiet and won’t bother your neighbors, b) electricity is fairly cheap, and c) you don’t need to lug around heavy pieces of equipment to operate the robot. You can eliminate all guesstimations by setting up the programmable scheduler if available.

What happens if the robot can’t climb hills?

One of the saddest (yet funniest) things we’ve seen while testing robots is their attempt to climb hills. Most of them will tuck tail and head in another direction since it identifies slopes as obstacles. Other models, like the Husqvarna 430XH, can climb hills without trouble.

Summary

And that concludes our guide on the best robot lawn mowers on the market.

We’ve spent more time than we’d like to admit researching several robot models to see which of them is deserving of your love.

This guide should cover everything everyone needs to know about robots and the best models available. If you’re unsure of anything, please let us know by leaving a comment.

Last update on 2022-10-06 / Affiliate links / Images from Amazon Product Advertising API

About Stephanie Hall

Stephanie is a DIYer and expert in using power tools. She is an architect and also provides design services. A yoga lover, she meditates to keep herself fit.

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