Best Robot Lawn Mower Comparison Chart

We know how overwhelming it can be to sift through marketing materials from a dozen different sources, trying to figure out which autonomous grass cutter really offers the features you need. The options keep increasing, too. The market for smart grass cutters has grown quickly over the last few years, and even the most established brands are constantly releasing improved models.

 

To make it easier for you to compare the best of the best robot lawn mowers, we’ve dedicated this page to showing off the highlights. We selected 15 of the top-selling lawn robots for your side-by-side review. 

 

For more details about the info we chose to include in this comparison tool, check out the tips and explanations later on the page.

 Robot Lawn MoverMSRPMowing AcreageSlopeCut HeightNotable FeaturesProduct Link
Yoleny Robotic Lawn Mower$499.990.130%1” – 2”
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Gardena SILENO minimo$629.990.0635%0.75” – 2”• Anti-theft
• GPS
• Rainproof
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Worx Landroid M WR150$699.001.540%1.6” – 3.9”• Anti-theft
• GPS
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Robomow RX20$799.990.4910%0.8” – 2.4”• Anti-theft
• GPS
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MowRo RM24$899.000.2520%1” – 2.5”• Rainproof
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Worx Landroid M WR140$999.990.7520%1” – 3.5”• Anti-theft
• GPS
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Gardena SILENO life$1,199.990.1835%0.75” – 2”• Anti-theft
• GPS
• Rainproof
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Closeup of the Automower 450XHusqvarna Automower® 115H$1,199.990.430%2” – 3.6”• Anti-theft
• Rainproof
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Closeup of the Automower 450XHusqvarna Automower® 315X$1,799.990.440%0.8” – 2.4”• Anti-theft
• GPS
• Rainproof
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Honda Miimo HRM310$1,999.990.3525%0.8” – 2.4”• AWD
• Anti-theft
• Rainproof

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Robomow RS612$1,999.990.2535%0.8” – 2.4”• Anti-theft
• GPS
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Stihl iMow RMI 632 P$2,199.99144%0.79” – 2.4”• GPS
• Rainproof
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Husqvarna Automower® 430X$2,499.990.845%0.8” – 2.4”• Anti-theft
• GPS
• Rainproof
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Worx Landroid L WR155$2,800.001.525%1.5” – 4”• Anti-theft
• GPS
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HEN’GMF 500m²$5,940.570.1225%0.75” – 2”• Anti-theft
• GPS
• Rainproof
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Choosing Autonomous Mowers by Price

Many shoppers cannot overlook cost when they’re researching mowers. No matter the features you want, your monthly budget may have the final say in your purchase. Smart technology has a reputation for luxury prices, but autonomous grass cutters are available at a wide variety of price points.

 

You’ll be hard pressed to find an effective and truly autonomous robotic lawn mower for under $500. We consider the lower end of pricing to range from about $500 to $1,000. Not too bad, considering that most popular models of traditional, gas-powered lawn mowers run from $350 to $1,000. As the technology improves and the products grow in popularity, the price of a hard-working robot continues to drop. 

 

If your budget is more generous, the residential mowers featured on this page go up to about $6,000. More typically, though, higher end yard robots range from $1,800 to $2,800. For that extra cash, you’ll typically be rewarded with greater acreage abilities, more extreme slope mowing, and a studier overall product.

 

Remember, you don’t always get what you pay for! Sometimes a lower cost option is still the all-around superior product.

Lawn Size and Mowers

The average American lawn owner is responsible for maintaining about a quarter acre of grass. If that reflects your home, a premium mower designed to handle 1.5 acres on one charge might be overkill. 

 

Some robot lawnmower favorites have to stop and charge after a tenth of an acre. That’s probably not going to fly for many single-family properties, but could be exactly what a city dweller or townhouse owner needs.

Slope: Robots and Hills

We express the slope capabilities of the best robot mowers with a percentage. If you live in Arizona or Iowa, a mower with minimal, 10% slope capabilities won’t you back. Residents of the American northeast, hills may be one of your top concerns. Steep patches of lawns can require robot mowers that handle a 35% or 45% slope.

 

For the geometrically inclined (no pun intended), there are tricks you can use with just sticks and string to measure the slope of your trickiest grass.

 

Comparing Cut Height

Like your hand-pushed lawn mowers, any robot lawnmower will offer adjustable blade heights. Among our best mower options, you’ll find the lowest setting typically results in a 0.8’’ to 1.5’ blade of grass. Maximum mowing heights can be set between 2.0’’ and 4.0’’. Those are broad ranges, and grass length should not be overlooked as you choose a mower.

 

It’s tempting to give your yard the lawncare equivalent of a buzzcut. That might seem to keep the lawn tidy for as long as possible, but overzealous shortening can impact your grass’s health in the long term. 

 

To figure out whether an autonomous mower has the cut height you need, figure out what type of grass you have. 

  • Grass species that are popular in climates with snowy winters include Kentucky Bluegrass and Fescue. These should be cut down to about 2.0’’ for the winter and 3.0’ in the summer. Avoid mowers that can’t go above two inches, or you risk stressing out your lawn!

  • Lawns in the American south use grass species such as Bermuda and Zoysia, which are healthiest at lower heights of 1.5’’ to 2.0.” 

 

Longer grass will stay greener and fuller during the stressful heat of the summer. Later in the year, as a general rule, cut your grass half an inch to a full inch shorter.

Notable Features

GPS Navigation

Robot mowers with GPS are happy to share their day’s activities with their owners. By downloading an app, you can receive GPS updates from your lawn mower about its progress. This feature also makes it possible to stop the mower or reroute it from afar.

 

If you’re hanging out on the porch while your robot takes care of your chores, the GPS may not be especially valuable. But, if you’re running errands or going to work during mowing sessions, a little long-distance control might be appreciated in case any problems arise. 

 

GPS also helps your mower navigate. At this point in time, physical perimeter wires are still doing most of that work.

Rainproof vs. Rain-Sensing Robots

When you read up on robotic grass cutters, you’ll find that most fall into one of two categories: Rain-sensing or weather resistant. 

 

Machines that can sense rain will notice if droplets begin to fall (or if your neighbor’s sprinkler is encroaching on their territory). Rather than suffering possible water damage, the robot mower heads back to its charging pad to wait out the storm.

 

If a mower is weather resistant, it continues mowing despite the forecast. This feature helps your mower maintain its schedule, but it also has its downsides. 

 

You’ll need to keep an eye on weather conditions while your mower operates, because very heavy storms or wind might overwhelm it. Mowing despite the weather might also be a bad idea if your robot’s route includes areas of dirt that become messy mud on rainy days.

Anti-Theft Features

Autonomous lawn mowers are small and valuable. By design, you might not be outside to supervise throughout their work time. Theft is uncommon, but you might want to consider security features for your new investment. 

 

A GPS is one such security feature, allowing owners to pinpoint the location of a missing robot.

 

An alarm is one of the most common security features for robotic lawn care. When the robot senses that it’s being picked up during a mowing session, the alarm will sound until the owner enters the correct pin code. You can often choose the length of that alarm, instructing your robot to make a fuss for up to 20 minutes.

 

Base pairing is a more subtle security feature. It matches your robot to one specific charging base, rendering the machine useless if swiped on its own.

Features We Didn’t Include

Noise Level

If you browse the marketing materials for just about any automatic mower, you’ll see a decibel rating. The quietness of robot mowers is one of their big selling points, letting you and your neighbors enjoy more peaceful Sunday mornings. So, why didn’t we include it on the chart? Because everybody’s doing such a good job!

 

The standard gas-powered lawn mower that wake you up on Sunday morning emits approximately 90dB of noise. That’s loud enough for doctors to advise hearing protection if you’re going to be mowing for a while. Robot lawn mowers are much quieter, ranging from 60-70dB. For reference, when you have a chat with your neighbor over the garden wall, the sound of your voices are around 60dB.

 

Robot mowers do have a range of sound levels, but it’s unusual for them to be anything but safe and comfortable.

Charging Time

Most residential robot lawn mowers take an hour to recharge, give or take 15 minutes. The variation was so minimal that we decided it wasn’t worth including.

Scheduling and Programmability

For a device to earn the title of “robot,” it’s going to need at least a few smart features. Any product that’s sold as an autonomous grass cutter includes the ability to set up a mowing schedule in advance. 

 

The interface that you use to set up your mowing plans could be of varying quality, though. We recommend looking up reviews of any apps that pair with your robot lawn mower.

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