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iMOW® RMI 422 P

A robotic lawn mower from STIHL that provides convenient, hassle-free lawn care.

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iMOW® RMI 422 P is rated 4.5 out of 5 by 4.
Rated 5 out of 5 by from Great Time Saver I have owned the RMI 422 for 2 years and I am really happy with it. The main reason is that I now have a robot doing a very mundane chore so I have more time to do more important things. The iMow cuts the lawn quietly (unlike my gas lawnmower) and without complaints, needs minimal service (just cleaning) and the result is a more beautiful lawn than I had before! I was able to change out the cutting blade myself in about 5 minutes.
Date published: 2019-08-29
Rated 5 out of 5 by from iMOW is amazing! Over a year ago, I made the decision to purchase an iMOW (422) after conducting a lot of research on several other brands. I like my lawn, but having an iMOW frees up time to do other things that I find far more enjoyable and my lawn always looks perfectly mowed. The main reason that I went with an iMOW is that if anything ever needed service, I could take it to my local STIHL dealer. Also, when I spoke with my STIHL dealer, before purchasing, they were very knowledgeable and even provided me with advice on the installation process (as I wanted to do it myself). The installation process isn't super quick, but after reading the manual and asking several questions of my dealer I had the unit installed and up mowing within about 4 hours. If you’d rather have the dealer install your iMOW, they can install it for a fee. Before the install, my lawn looked bare and overall it was unhealthy. Within 2 months of using the iMOW my lawn looked like a well-manicured golf course. Not only do the tiny cuts/blades of grass fertilize my yard, the mower is also light enough that it doesn’t cause damage to my lawn (which was a constant issue with the traditional mower...especially when the grass is wet). Also, no more having to bag and dispose of lawn clippings!Over the past year, all I’ve had to do to service the unit is to change the blade twice based on normal use (every 200 hours of mowing). Also, I decided to install the high-traction wheels (as I have a few steep areas in my lawn) which really helped. One issue did come up after about 10 months of use…the LCD screen wouldn’t come on occasionally when I went to adjust the settings. It was clear that it was software/not hardware related and I took it to my STIHL dealer. The dealer was able to update the software which solved the LCD issue, at no cost. This said the new (updated) software changed how the mower mowed my yard. Based on those changes it would no longer mow my yard completely (in one area). This said the good news is that I was able to get in touch with Joseph with STIHL corporate and they sent Martin (an iMow Specialist) out to my home to load an update on my mower...which immediately fixed the issue. Both Joseph and Martin provided amazing customer service! Not sure what other company does house-calls these days? Again, this is why I purchased an iMOW…they stand behind their products. Beyond the one small hiccup that was fixed, the machine has been extremely reliable and even mows my yard perfectly in full rain. Best purchase ever!
Date published: 2019-08-15
Rated 3 out of 5 by from RMI 422 P after a few months We've had it for 9 weeks and I think it worked well for 2. Stihl rep has had to come out twice since install (adjust slope of charging station and replace the electronics board in the charging station after it died). We have ~7300 ft^2 of bermuda grass and if you don't stay on top of adding time to the mowing duration as the weather warms, the iMow can't keep up. We started out with the mowing duration that the iMow suggested during set up, but we are now almost twice that. We still have a very uneven lawn after adding hours every week. It will find every hole and low spot in your yard, which I knew I'd have to deal with, but it also gets hung up on thick and wet grass. I didn't expect to have to spend so much time dealing with the iMow. I wanted this to be set and forget (after filling the holes and working out the mowing duration), but I don't think this is a replacement for a standard mower. We've had to mow the yard a hand full of times to get back to a grass height that the iMow could handle. I think you will still need access to a standard mower for when the iMow can't keep up or when you want to take the grass height down in the spring for example. In the end it has saved us a little time. It will cut grass, just maybe not as well and consistent as I hoped. For this much money I was hoping for more. I'm also worried about how long the iMow will last considering the problems we've already had.
Date published: 2019-07-19
Rated 5 out of 5 by from Bought my life back! i have now had this robotic mower in my yard for 2 years. I waited to review to ensure I could provide info after spring and fall performance. It kept up with the fast growing season in the spring, and mulched leaves all fall. I finally gave away my HONDA self-propelled mower this year as I just don't need it. There were some adjustments required through the first few months with a few trees and flower beds, but once the perimeter wire was in the right place, this mower keeps up with my 1/4 acre property and my grass has never looked better.
Date published: 2019-07-15
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