updated: January 07, 2022

Check out our 2022 review of the Robomow RS630, an exceptional machine for the price!

Our rating: 9.2
Price: Average

The Robomow RS630 is a game-changing machine that will revolutionize the way you think about outdoor maintenance tasks. The Robomow takes a page out of the playbook of robotic vacuum cleaners like the Roomba to provide you with an effortless solution to your lawn-cutting problem.

Robomow RS630 mowes the lawn.
Robomow RS630 is the effortless solution to the lawn-cutting problem

Let’s say you haven’t kept up with the latest advances in robotic lawn mower technology. In that case, you’ll be blown away at how far personal home robotics has come and how relatively trouble-free it all is.


  • Cuts ¾ acre on a single charge;
  • High-performance lithium ferrum batteries;
  • No-effort plush, well-manicured lawn;
  • Powers through the toughest of terrain;
  • Turns clippings into natural fertilizer;
  • Exceptional obstacle avoidance.

Robomow cuts the grass while its owner takes the rest in the hammock.
Who’s It For

The Robomow RS630 is for anyone who’s sick and tired of breathing in potentially health-destroying fumes while pushing an ear-splitting machine and getting all sticky and sweaty. It’s also for anyone with a health condition that makes it impossible to cut the lawn themselves.

Instead of spending hundreds of dollars a year hiring someone to mow your lawn for you, you could use that money to buy the Robomow. Over a couple of years, the machine will pay for itself, making it a smart investment.



Better Than Previous Models

What’s so exciting about the 2022 model is it’s so much better than previous iterations. For example, the wheels are bigger. This means they’ll handle better in the mud and on wet grass, thus providing the unit with greater overall traction.

The home base now has a guide track, which helps keep it from missing the charging prongs. The app is more elegantly designed and intuitive, providing a better user experience.

Fairway-like Plushness

Underside view on the RS630 with its dual blade design and mulched grass stuck on the bottom

The dual blade, 22” inch cutting system is more than sufficient to expertly cut every single blade of grass in lawns up to ¾ of an acre and slopes up to 35 degrees. The Robomow might seem that it’s randomly bouncing all over the place as it carries out its lawn-cutting mission. However, there’s a method to its madness.

Over a day or two, it will cover every square inch of your yard, keeping your grass as closely cropped as a plush golf course fairway. You can program the bot to cut your lawn more often than you’d do if you were mowing manually, keeping it short at all times.

Free Natural Fertilizer

The grass is mulched into tiny pieces, which decompose more quickly than if you were mowing the old-fashioned way. This means you won’t have to spend an excessive amount of time raking it all up afterward.

This fantastic machine transforms your grass into excellent natural fertilizer. This helps to ensure that your lawn will be as vibrantly healthy and as fantastic looking as it can possibly be.

Easy Height Adjustment

An easy-to-operate lever adjusts the height from less than an inch to just over three inches in seconds. This way, you can have your lawn cut precisely the way you want it.

Robomow tries to avoid the toy truck that is the obstacle in front of it

Exceptional Obstacle Avoidance

The Robomow avoids obstacles like a pro, and it’s one of the best robot mowers for handling uneven terrain. If it bumps into something, it will immediately back up and head off in a new direction. Overgrown weeds barely slow it down, and it easily rolls over bumps and roots. Pinecones are merely a momentary impediment.

High-Performance Batteries

The powerful 26-volt lithium ferrum high-performance batteries provide enough juice for a superior lawn-cutting experience every time. Charging time is 90 to 110 minutes, and mowing time is 80 to 100 minutes. The battery life expectancy is 5,000 charges over an estimated three to five years before performance begins to suffer.

You don’t even have to worry about recharging. That’s because whenever your grass-cutting bot is in danger of running out of juice, it will mosey on over to its charging station to get its battery replenished.

RS630 user configures lawnmower's work schedule in the My Robomow app
Manage Robomow From Anywhere

Using Bluetooth connectivity, the My Robomow app lets you manage your machine from anywhere on the planet you happen to be. You can easily integrate it into your Alexa smart home ecosystem so that you can operate the controls with voice commands alone.

Integrated Rain Sensor

The unit boasts an integrated rain sensor. This means it returns to the base station in inclement weather and heads out when skies are blue again. While it’s capable of cutting your grass even in the rain, it’s best not to. That way, your bot doesn’t get its electronic innards fried when it gets stuck in a mud puddle.

Quiet Operation

Robomow RS630 quietly mows the lawn when its owners are reading undisturbed.

I adore the fact that the Robomower is practically whisper-quiet. In fact, you won’t even realize that it’s operating until you’re close enough to hear the operation of the blade. The Robomow runs at a relatively quiet 74 decibels, which is a whole lot less noisy than conventional gas-powered mowers that create an ear-splitting 90 decibels of sound.

This means that you can run it after midnight when your neighbors are tucked soundly in their beds without fear of disturbing them. Suppose they never wake up to look outside their window to see that your bot is operating at night. In that case, they might be perplexed at who’s cutting your grass when they observe how well-manicured your lawn is.

Built-In Safety Features

Because a unique code is required to turn the unit on, unauthorized users can’t start it up. The machine also automatically shuts off if it’s tilted or picked up. This prevents children from getting injured.

Floating Deck Design

Blades of the Robomow continue to cut the grass when the device rolls over the small tree branch

The machine boasts a floating deck design that allows for close cutting on any terrain type without gouging. It does this by preventing the base from rising with the wheels. Unlike some other mowers that tend to leave wide borders around the cutting area, the Robomow has a dual blade system that extends to the edge of the device. This gives you a total cut right to the border’s edge and keeps the edging you’ll have to do to a minimum.

ECO Mode

If you want your unit to only use a minimal amount of energy, switch it to ECO mode. When you activate it, not only is power reduced, but the noise level is too (from 74 to 66 dB). Because it runs on a minimal amount of electricity, you’ll have lower operation costs than a gas-guzzling mower.

Illustrated multizone capabilities of the RS630
Multizone Capabilities

This amazing machine has multizone capabilities. That means you can set up which parts of your lawn you want it to cut and which parts you want it to avoid. You can store up to four separate regions.

Ingenious Modular Design

The ingenious modular design makes it so much easier to switch parts without having a costly technician do it for you. Merely pop out the defective module and replace it with another, and your bot is operational once more. You don’t even need any specialized knowledge!

Brushless Motors

Brushless motors mean your unit will be more efficient and longer-lasting than robot mowers without this feature. It also won’t break down as much.



Setting up a robotic lawn mower isn’t as easy as setting up a robotic vacuum cleaner. Establishing a perimeter using the included guidewire can be a bit of a hassle. However, it only takes a single afternoon to do it, and once it’s set up, you can kick back and relax as your little bot takes care of all your grass-cutting duties.

There’s a bit of a learning curve when accessing advanced functions like mowing modes, scheduling, and zone control. However, you should eventually get the hang of it. If the buttons on the unit continue to confuse you, you can always download the app and configure it that way. This tends to be a little easier.

Some people complain that the wheels only last a few short years before they fall off. This is unfortunate, as replacement wheels can be a bit expensive with long shipping times.

Robomow RS630 cuts the grass in a random pattern.

Most users report that the Robomow has terrific traction. However, some say that occasionally, their bots run down their batteries trying to get out of gopher holes. If this happens to you, you’ll need to rescue your unit by carrying it back to its charging station so it can replenish its electricity. Having to do this from time to time is less of a pain than paying a lawn crew to mow your lawn twice a month.

You’ve got to be particularly vigilant about picking up small branches in your yard because they can damage the blades. Otherwise, your blades are going to wear out prematurely, and you’ll incur unnecessary expenses.

Unfortunately, you’ll still have to do some of the edging work yourself. It also won’t bag the grass for you. Due to its seemingly randomized navigation pattern, it might have some difficulty getting to specific sections of your yard—especially if it’s odd-shaped.

Final Verdict: Should You Buy the Robomower RS630

For the same price as an old-fashioned, gas-guzzling, hydrocarbon-spewing riding mower, you can buy a cutting-edge lawn-cutting robot with some impressive bells and whistles. This way, you don’t have to subject yourself to the heat and noise of a traditional machine.

Robomow RS630 charges its batteries on the charging base
RS630 will make you free of manually cutting your lawn

Besides, watching the Robomow carrying out its mission of giving your lawn an immaculate manicure is one of the most hypnotically satisfying things I’ve seen in a long time. Maybe it’s really the pleasure of not having to do all that back-breaking work myself. In any event, I can heartily recommend the Robomow RS630 if you want to be blessedly free of manually cutting your lawn.

If you want to see which other robotic lawn mowers we recommend, check out our guide here.

Stephen A. Hancock received his M.S. in Mechanical Engineering (Robotics Track) from University of Utah in 2004. Since then, he’s contributed to numerous articles and has been a consultant for many technical publications and websites.

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