Stihl RMI 422 review
Test scoreShow Context
The Stihl RMI 422 has larger wheels than most other robot lawn mowers, with a tread pattern to make sure it can handle cutting the grass on sloping and uneven lawns. We put it to the test in our gruelling tests to see if it can handle whatever challenging terrain your garden might have. Read our full review to see how It fared.
- Pros and cons
- What is it?
- What’s it great at?
- Is there anything I should look out for?
- Is there anything else I should know?
- Should I buy it?
First reviewed by Which?
August 2020
Released
January 2019
Technical specifications
General
- Blade typeSingle blade
- Cutting width20 cm
- Number of cutting height settings8
- Weight9.3kg
- Height28 cm
- Width38 cm
- Depth60 cm
Test results
The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
Find out how we test robot lawn mowersPut us to the test
Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.
Compare retailers
Prices updated dailyPrices are ordered from lowest to highest, irrespective of retailer rating or stock, and exclude any potential delivery costs. We are not able to show every possible retailer and cheaper prices may be available. When you click on a retailer link on our site, we may earn affiliate commission. This supports our not-for-profit mission to empower consumers and in no way affects our recommendations. Find out more.
Make smarter choices
- 74%Lowest score
- 78%Average score
- 85%Highest score
Put us to the test
Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.
