Searching for the best robot lawn mower of 2021 can be a bit of a challenge. It’s still a relatively new product category unlike more established sectors such as the garden tractor sector. That’s why we thought we’d make your life a bit easier by bringing together the best available right now in our robot lawn mower reviews.
We’ll look at 10 different models that we believe are the best around in 2021. If you’re tired of pushing a lawn mower around in the hot sun and you’re ready for the robot revolution then these reviews are the place to start.
Here are the best robot lawn mowers 2021:
- Husqvarna Automower 430XH
- McCulloch ROB R1000
- Worx Landroid M WR143
- Robomow RX20
- Robomow RS630
- Husqvarna Automower 115H
- Gardena R80Li
- Husqvarna Automower 310
- Worx Landroid L WR153
- Robomow RS622
1. Husqvarna Automower 430XH
The best robot lawn mower in 2021
The Husqvarna 430XH is our choice as the best robot lawn mower on the market in 2020. This one will set you back a bit at just over $3000, but it’s packed full of features that make it easy to mow your lawn from the comfort of your patio chair. It’s powered by an 18-volt lithium-ion battery, designed to last up to 5 hours in normal conditions. The 430XH has a 9.45-inch cutting width and it has a range of up to 1 acre. With a maximum cutting height of 3.6-inches and a maximum slope of 24-inches, it’s the best robot lawn mower for uneven ground around.
Where it really shines though is in the extra features that come standard with this robot. It has GPS assisted navigation and it automatically returns to its charging station when the battery is running low. It’s compatible with both Google and Alexa or you can control it through an app on your phone or smartwatch. This Husqvarna product also comes with a 2-year warranty.
As with any robot mower, this one isn’t nearly as powerful as a standard mower and it cuts a much smaller path, so it takes a while to get the job done. Some owners have been known to complain about it missing some patches of lawn on occasion. It can also have some traction issues on wet grass.
What we like (and don’t like) about the Automower 430XH:
- 5-hour battery life.
- Maximum 1-acre range.
- GPS assisted navigation.
- Returns to charge automatically.
- Control with Google, Alexa, phone or smartwatch.
- Works on slopes up to 24-inches.
- 2-year warranty.
- Less powerful than standard mowers.
- Only 9.5-inch cutting path.
- May leave some patches.
- Can be traction issues.
Overall this is the best choice in the robot lawn mower niche as long as you’re not on a tight budget. Yes it does have some issues with traction and it can leave the odd patch behind, but these are common problems in this product category. For the most part, it does a good job of cutting the lawn and you have the option to control it yourself with an app or voice control which we really like.
2. McCulloch ROB R1000
The best robot lawn mower under $1000
If you have a budget of around $1000, you may be surprised to learn that there is a popular robot lawn mower in your budget. The McColloch ROB 1000 is the best for the money available to you. It’s powered by a lithium-ion battery and runs for about 2 hours on a charge. It has 3 cutting blades for a nice smooth cut every time.
The ROB 1000 is fully programmable from the large display on top of the machine. It doesn’t have GPS assisted navigation – it simply bounces off of the perimeter fence you’ve previously laid out. Some robot lawn mowers have difficulty on hilly terrain, but this one can handle inclines up to 25%. This McCulloch machine will automatically return to its charger when the battery is low. It also comes equipped with an alarm theft prevention system.
There are some issues that are a bit concerning with the ROB 1000. It will get bogged down in tall grass and any type of wet surface will prevent it from handling inclines, so it’s not the best for steep hills. One other thing that may discourage some buyers is that this robot mower is not Alexa or Google compatible and you can’t control it from your smartphone.
What we like (and don’t like) about the ROB R1000:
- 2-hour battery life.
- 3 cutting blades.
- Fully programmable.
- Handles up to 25% incline.
- Theft prevention system.
- Bogs down in tall grass.
- Loses traction on wet surfaces.
- Not compatible with Alexa or Google.
- No smartphone app.
The ROB R1000 from McCulloch isn’t without its issues. We were disappointed that it doesn’t come with any app or smart assistant control. It also has some traction problems. On the positive side, it is an affordable option in the robot lawn mower category. It does perform well on flat surfaces and we like that it returns to the base station automatically when it needs to charge. We’d say the positives outweigh the negatives, especially if you have a small flat lawn.
3. Worx Landroid M WR143
The best robot lawn mower under $1500
If you have a budget for a robot lawn mower between $1000 and $1500 you should give serious consideration to the Worx 20-volt 7-inch robotic Labdroid M (WR143). This little machine has plenty of jump provided by its 20-volt lithium-ion battery. It has razor-sharp blades and it’s programmed to cut the lawn at frequent intervals – just taking a little bit off the top for a healthier lawn.
The array of extra features included in this model are impressive. The Find My Landroid feature lets you to track your mower and recover it if it’s stolen. It also has full app support, so you can control your mower any time you want. The Landroid M works on hills as well as long as the grade is no steeper than 20 degrees. It will return to the charging station when it’s low on power automatically and when it senses rain.
There isn’t a lot we don’t like about this amazing robot mower. The app could use some improvement to make it more user friendly. We also found that the Wi-Fi connection can be a bit spotty which will disrupt attempts to adjust its operation via the app. It does handle hills better than most robot lawn mowers, but it isn’t designed for steep hills.
What we like (and don’t like) about the Landroid WR143:
- Powerful 20-volt battery.
- Cuts at regular intervals.
- Find My Landroid theft protection.
- App control.
- Rain Sensor and automatic return to base.
- Returns to base automatically when the charge is low.
- Can operate on hills up to a 20-degree incline.
- The app isn’t as user friendly as it could be.
- WiFi connection can be spotty.
- Won’t work on steep hills.
If it wasn’t for the issues with the app for this model and the problems with Wi-Fi, the Landroid M may have made it to the top of our list. We still feel it’s one of the best robot lawn mowers around. We love the Find My Landroid feature and the built-in rain sensor.
4. Robomow RX20
The best budget robot mower under $800
The Robomow RX20 is the most affordable robot mower on the market that’s worth considering. It’s powered by a lithium-ion battery and it will cut for about 3 hours before it automatically returns to its charging station to recharge. This model cuts using a single 7-inch blade and at a maximum height of 1.75-inches.
For the small price tag, you get a lot of cool features with this mower. It does link with a compatible app for remote control and it’s also Alexa compatible. To protect your mower and your family it comes equipped with a child prevention lock and it’s discoverable using GPS to let you know if it’s moved outside of your authorized area. The RX20 may be the best deal around for small yards if you want to join the robot mower revolution.
There are a couple of shortcomings with this mower you should be aware of. It doesn’t handle hills well and its traction isn’t good on wet surfaces. One other thing to point out is that this mower does not cut in a defined pattern – it simply bounces off the perimeter wire you set up in a random pattern. This can lead to some missed patches on your lawn on occasion.
What we like (and don’t like) about the Robomow RX20:
- Priced under $800.
- Cuts for 3 hours between charges.
- App and Alexa control enabled.
- Child prevention lock.
- GPS discoverable.
- Doesn’t work well on hills.
- Poor traction on wet surfaces.
- Random cutting pattern.
- Only cuts with 1 7-inch blade.
While the Robomow RX20 does have some limitations, it’s still a great entry-level robot mower. If you have a relatively flat, smaller yard this mower will do the job. Best of all it comes with an app that lets you control it remotely if you want to. Who doesn’t like a remote control vehicle!
5. Robomow RS630
The best robot lawn mower under $3000
For anyone considering a higher-end robot lawn mower, the RS630 by Robomow should easily make your shortlist. This model has all of the bells and whistles you’re looking for, but more importantly, it does a great job cutting your lawn. This is our top-rated choice for cutting grass efficiently with its impressive 22-inch cutting width. The RS630 will cut for about 2 hours on a single charge and with its large cutting path, that’s plenty of time to cut a lawn up to 3/4 of an acre in size.
This model comes with a companion app that allows you to program and control it over Bluetooth and you can also control it with voice controls using Alexa. It’s equipped with a rain sensor that tells it to return to the base in wet weather and it restarts when the weather improves. With the anti-theft system, you can set up a code that has to be entered before use and it is designed to automatically shut off when it’s picked up for safety – that will give you peace of mind if you have small children.
One thing we didn’t like about this mower is its durability. If you have a large lawn that requires a lot of maintenance you may notice some parts wear quickly after just one season of use. We also found that it does have trouble finding the base on occasion and may need an assist from you.
What we like (and don’t like) about the Robomow RS630:
- Large 22-inch cutting path.
- Cuts up to 3/4 of an acre on 1 charge.
- Alexa and app-controlled.
- Effective anti-theft system.
- Child safety shut-off.
- Parts wear quickly with large properties.
- May have trouble returning to base.
If you have a small to average-sized lawn the RS630 will serve you well. It is capable of handling larger lawns, but you may notice parts begin to wear quickly. Overall, we liked this model – Robomow has included some great safety features, a strong anti-theft system and we really like the app.
6. Husqvarna Automower 115H
Husqvarna is a well-known maker of lawn and garden equipment, so it comes as no surprise that they now have a strong presence in the robot lawn mower sector. One of their best-selling models to date is the Automower 115H. This one is powered by an 18-volt lithium-ion battery and will operate for 2 hours on a charge. This Husqvarna robot mower cuts an 8.66-inch cutting path with a maximum cutting height of 3.6 inches.
Unlike some of its competitors, you can adjust the cutting height on this mower between 2 and 3.6 inches. It also has built-in obstacle sensors and it’s designed to continue cutting even when it’s raining. You can also control this mower using Husqvarna’s Connect@Home app.
One thing to keep in mind is that the 115H isn’t great on steep hills. It’s only designed to work on a maximum incline of 17 degrees. We should also caution that some users have trouble getting this machine to connect with their smartphone for remote operation.
What we like (and don’t like) about the Automower 115H:
- Maximum 2-hour battery life.
- Adjustable cutting height.
- All-weather mower.
- Obstacle sensors.
- Connect from Home app remote operation.
- Not good on steep hills.
- App connection issues.
The Automower 115H from Husqvarna is one of the best options in the robot lawn mower sector. It works well in all-weather conditions and it’s great at detecting obstacles in its way and cutting around them. It is better on flat surfaces and you may run into some issues connecting with the app, but overall this is a great choice if you’re looking at a robot mower.
7. Gardena R80Li
The best value robot mower for the money
The Gardena R80Li robotic lawn mower strikes the right balance between affordability and strong user-friendly features. That’s why we’ve select it as our choice for best value robot lawn mower. This model features an 18-volt lithium-ion battery and it will run for about 80 minutes between charges.
This is an all-weather robot mower and it can handle moderate inclines reasonably well as long as the grass is dry. When it’s time to recharge it returns automatically to its base. We also like the built-in theft detection system Gardena’s included with this model as a robot mower is an expensive investment you’ll want to protect.
This mower does have some shortcomings. It only cuts at a maximum height of 2-inches and it cuts in a random pattern – there’s no smart grid pattern. The 80 minute cutting time is also unimpressive – we definitely wouldn’t recommend it for large lawns.
What we like (and don’t like) about the Gardena R80Li:
- All-weather operation.
- Works on hills.
- Automatically returns to base to recharge.
- Built-in theft detection system.
- Only runs for a maximum of 80 minutes per charge.
- 2-inch maximum cutting height.
- Cuts randomly.
The Gardena R80Li robotic mower isn’t a great choice if you have a larger lawn with just 80 minutes of running time per charge. It would be better if you could adjust the cutting height as well. For the most part, though we like this machine. It works well on hills and it can continue to operate in the rain. We feel it strikes the right balance between affordability and worthwhile features.
8. Husqvarna Automower 310
The best robot lawn mower for hills
Most robot lawn mowers have trouble on uneven and hilly ground. There are some exceptions and that includes the Husqvarna Automower 310. This capable machine can handle inclines without missing a beat and it operates continuously for up to 2 hours even when it’s raining.
This may be one of the more affordable robot mowers available today, but it’s not short on features. It automatically returns to the charging station when the battery is running low and resumes where it left off when it’s ready. Narrow passageways don’t slow it down and it can work around most obstacles. If you do run into any issues, you can use the Connect@Home app to get it back on track. All of this is backed by a 2-year warranty.
Critics note that the Automower 310 doesn’t always last a full 2 hours between charges – especially if your lawn has lots of uneven spots. The 8.7-inch cutting path and 2.4-inch maximum cutting height are a little underwhelming as well.
What we like (and don’t like) about the Automower 310:
- Works well on inclines.
- Operates in all weather conditions.
- 2-hour operating capacity.
- Automatically returns to charge when the battery’s low.
- Works in narrow passageways.
- Compatible remote control app.
- 2-year warranty.
- May not last a full 2-hours between charges when operating on uneven ground.
- Only cuts an 8.7-inch path.
- Maximum cutting height is only 2.4-inches.
Because of it’s the smaller cutting path, we would only recommend the Husqvarna Automower 310 for small to medium-sized properties. We were impressed with how it handles hills and that it can keep going in the resin. When you combine that with its ability to work through narrow passageways and the fact that it has a compatible remote control app you get a very capable machine that deserves to be included in our robot lawn mower reviews.
9. Worx Landroid L WR153
The best robot lawn mower for tall grass
Tall grass can be a problem for a lot of robot lawn mowers, but not for the Worx Landroid L (WR153) model. That’s because you can easily adjust the cutting height between 1.5 and 3.9 inches. It runs for up to 90 minutes using a powerful 20-volt battery.
Worx has thought about almost everything with this model. It automatically recharges when the battery’s running low and it works in all weather. Best of all it learns as it goes, so that it actually gets better at cutting your lawn over time. You can leave it to cut on its own or you can take over the controls and operate it with the Landroid app. This robot also does a great job around the edges of your lawn to keep them looking sharp and clean.
One of the few things we don’t like about this mower is the 90-minute running time – we’d like to see that improved in the future. We should also mention that it does have some issues with traction that may slow you down.
What we like (and don’t like) about the Landroid WR153:
- Works in tall grass and on hills.
- Adjustable cutting height.
- Powerful 20-volt battery.
- Automatically recharges when the battery’s low.
- Learns as it cuts.
- Remote control with app.
- Great at cutting around edges.
- Only runs for 90 minutes per charge.
- Can have traction issues on some surfaces.
Other than the disappointing running time and minor traction issues, we didn’t find a lot we didn’t like about the Worx Landroid L robot mower. This is a great machine that works in different weather conditions, it’s versatile, it’s flexible and it’s great at cutting around the edges of your lawn.
10. Robomow RS622
The best robot lawnmower for large yards
Robomow’s RS622 is one of the best robot lawn mowers out there at the moment. It has an impressive 22-inch cutting deck and a powerful 26-volt lithium-ion battery. It’s the best robot mower for steep hills, capable of handling inclines as steep as 35 degrees. The cutting height is fully adjustable as well up to 3.5-inches.
There are so many great features on this machine you might think they’ve thought about everything. It has a dual blade system for precision cutting and you can set up different cutting zones for different days. The RS622 is compatible with Alexa and you can connect it with an app using Bluetooth. It also has an integrated rain sensor, anti-theft system and a safety system that prevent accidents.
We were surprised that they didn’t include GPS tracking with the anti-theft system though. It’s also supposed to run for up to 2 hours between charges, but in reality, that’s only in perfect conditions. If you have uneven terrain or lots of obstacles in your yard expect the operating time to be closer to 1 hour.
What we like (and don’t like) about the Robomow RS622:
- 22-inch cutting deck and 26-volt battery.
- Works on 35-degree inclines.
- Adjustable cutting height.
- Dual blade system.
- Works in different cutting zones.
- Includes rain sensor, safety and anti-theft systems.
- Alexa and app capabilities.
- No GPS theft tracking.
- Running time reduced on uneven surfaces.
The Robomow RS622 is a good robot lawn mower. It has a great 22-inch cutting deck and a powerful 26-volt battery. It would be nice if the run time was a little better, but it does cut a wide path with each pass. With its rain sensors, anti-theft system, safety system, Alexa and app compatibilities we have no hesitation recommending this mower.
It’s time to join the robot lawn mower revolution!
We like all 10 of these robot lawn mowers we’ve reviewed. The Husqvarna 430XH is our number one recommendation in 2021, but there isn’t a wide gap between it and these other choices. If you’re ready to join the robot lawn mower revolution any one of these mowers will impress you with its capabilities.