The RX20u is the smallest and most affordable model Robomow have ever built. It is best suited to those with small gardens (between 200 – 300m²) that are shaped a little more complex than most.
Because of its very smart navigation and mobility, the RX20u can handle these gardens much more effectively than others.
Now even though it is smaller and cheaper, the RX20u still has the great mowing features that you would see on Robomows bigger and more expensive models.
Such the floating deck, mobile/tablet connection and the various mowing modes you can choose from.
Considering everything that this model is equipped with, it is very difficult to match how much value the RX20u provides.
Because of Robomows Smart Mow technology, the RX20u mows without any interruptions, produces a precise cut and can cover your garden much more efficiently than other competing models (up to 10% faster).
However that is not enough to handle a complex garden, with many small spaces and narrow passages.
That is why Robomow have made the RX20u much smaller and compact than any other of their models. With this design it can squeeze through even the tightest of angles.
Giving it a better chance of covering every inch of your garden.
Again this is slightly different from most models but just like above, it actually improves the mobility of the RX20u.
Just like all Robomow models, it uses two big wheels at each side so that is stays balanced and steady. But instead of using a typical third wheel at the back, the RX20u has been fitted with a Glider.
This promotes better maneurverability as it gives the mower much more freedom and allows it to make turns with ease. Making it perfect for complex gardens.
The RX20u mower is powered by a Lead Acid battery and electrical motor to produce between 90 – 120 minutes of mowing time.
Considering the size of lawn it’s designed for the RX20u shouldn’t have a problem finishing lawn in one go but I have to say I was a little shocked when I seen this.
Other than not being able to develop one to fit the RX20u, I can’t think to why Robomow wouldn’t fit this model with one.
So that this model can take care of a whole range of complex gardens, like all Robomow mowers, it can travel between separate lawns (5 of them).
Just make sure you keep this in mind before purchase. If you have any areas of lawn which are narrower than this then the RX20u will not even be able to pass through here, never-mind mow it.
To limit your interaction with the mower and to make your life just that little bit easier, the RX20u can be controlled by your phone or tablet.
So whether you’re at work, out on a jog or enjoying that lie in on a Sunday, you can send the mower out to work.
Of course that is not all it can do, as with any mower you are going to need to make changes to mowing route, schedule and cutting height so the app lets you do that too.
And for those tough little spots in your garden that are proving to be too difficult for the mower to handle, you can do it yourself, and I don’t mean physical mowing.
Just like a toy car you can control the RX20u with your phone. I know this is still technically you mowing your lawn – which kinda defeats the purpose of a robomower – but sometimes the mower just needs your help.
And I think you’ll agree that this way is better than physically mowing!
The RX20 is also equipped with a GSM module which prevents faults and minimises downtime of the mower. It collects technical data from the mower and then sends you operational and security alerts to your phone accordingly.
Keeping you up-to-date with everything RX20u.
The RX20u is equipped with a slightly different blade than other Robomow models. It is a little smaller and only has two edges, probably to account for its smaller size.
And as I mentioned earlier, you can adjust its cutting height (between 15-45mm) for the changing seasons.
For the benefit of your gardens health and so you don’t have collect all those pesky clippings, the RX20u cuts your grass into small pieces.
So not only will the RX20u maintain your lawn but it will also improve it as well.
So that the RX20u can fit into different environments and adapt to different situations, you can program it work to operate differently.
So that the RX20u operates using minimal energy for cutting your grass and maintaining your garden, you can set it into ‘Eco Mode’. So when you want to save a little bit of energy this feature is ideal.
However be warned this does slow down the RX20u work rate so it will take longer to finish the mow.
Now this is the most useful of all modes – the ‘Edge Mode’. This program instructs the RX20u to follow the perimeter wire and cut only the borders of your garden.
If your garden is next to the wall of your house or a fence, the RX20u can still not cut the grass beside it. So after every mow, you will have to go out with the trimmers and clean this up.
Well no need to worry the RX20u comes with its own bump sensors.
The RX20u is equipped with sensors that turn off the blades immediately when the mower is either lifted or tilted. So if you need to replace or clean the blades, don’t feel scared or cautious, you will not be in harm’s way.
To protect your mower from being stolen and so that others can’t use it unauthorised, the RX20u comes with a PIN code.
If handled or played with without the code then an alarm will sound and (if you have connected to the app) a notification will be sent to your phone.
The Charging time of 16 – 20 hours is a very long time to wait before the RX20u can get back to action. But considering the size of lawn it is built for it should finish this in one go.
So there isn’t all that wrong with the RX20u if you compare it to other models. This model has so many good qualities that having a couple of flaws is more than acceptable.
As you can probably tell from my tone just above, I am really impressed with the RX20u.
From what I have seen the RX20u has definitely out done its competition.
Features like the Floating Deck and the Glider really do make this perfect for the small, complex garden. And not only that but things are included that you usually only find on a high end model – like the mobile connection and multi-zone feature.
If you have a small and are in the market, then I recommend you make this your first choice!
Hopefully these pointers have made it clear if you’re suitable for the RX20u. This really is a great mower and if you have the garden for it, I know you’ll love it! If you want to check out the latest prices make sure you go to eBay.
Hi Easy Lawn Moving, I saw your Robomow RX20 Review. Impressive to see in the video how the robot works. One question does I have about the charging.
Hi Jan, yeah Robomow have made a really good job of it. Even though it does take a while to fully charge the battery, I think it doesn’t cost you any more money, it’s just not the most efficient system by the looks of things.
So you shouldn’t need to worry about spending more than you would with other mowers.
I have never seen such a small “robot mower” before. It is very cute. Even though it is too small for my garden It is something to think about in the future when I get older or just too busy and my lawn has a little more bushes and flower beds. What a great idea!
Yeah i think it’s a great little mower and perfect for those with smaller gardens.
If your lawn is too big then why not check out some of the robot mowers I’ve reviewed that are built for a bigger areas. You can check them out here on my home page.
The long charging time is because they are still using the old style lead acid battery as is clear on their website. Bit of a game breaker.
Wow I could’ve swore they used a Lithium-ion battery, the poor charging times make more sense now. Maybe they could make the battery small enough to fit in the mower, hopefully they’ll make some advancements going into 2018.
Thanks for pointing that out, I’ll make a change to the review where required!