Stihl rmi 422

Stihl RMI 422 PC-L Review – Unleashing the Power of Robotic Lawn Care


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When considering buying a robotic lawn mower, one of the most important things to consider besides the price and features is the time and energy it saves you. To have great results, you don’t need to invest a ton of money. Today we will take a closer look at the Stihl Rmi 422 Pc-L and see what it has to offer and if it’s the right choice for your needs.

Pros and cons

The Stihl RMI 422 PC-L brings a range of pros and cons to the table. On the positive side, its quiet operation ensures that your lawn care doesn’t disrupt the peace and tranquility of your surroundings. The convenience of app control allows you to easily monitor and control the mower from your smartphone or tablet. 

Stihl rmi 422 mowing

Additionally, it delivers good and consistent performance, ensuring a well-maintained lawn. However, it’s worth noting that the RMI 422 PC-L is not the most affordable option on the market. Furthermore, there may be instances where it gets stuck on wet or uneven surfaces, potentially requiring some intervention. Consider these pros and cons when deciding if the Stihl Imow Rmi 422 PC-L is the right robotic lawn mower for you.


The Stihl RMI 422 PC-L is equipped with a wide array of impressive features. Its lift sensor ensures safety by automatically stopping the blades when the unit is lifted. The scheduling option allows you to set specific times for the mower to operate conveniently. With its weather-resistant design and built-in rain sensor, the mower can withstand various weather conditions. 

The inclusion of LTE connectivity enables seamless remote control and monitoring through the dedicated app. The RMI 422 also offers auto charging functionality, ensuring it stays powered up without any manual intervention. You can easily adjust the cutting height to achieve your desired lawn length. 

To prevent theft, the mower sends notifications through the STIHL app if it is removed from the yard, and its PIN can only be reset by an authorized STIHL Branch or Distributor. Lastly, the quiet operation of the Imow 422 ensures a peaceful and undisturbed lawn care experience. These impressive features make the RMI 422 PC-L a compelling choice for those seeking a versatile and advanced robotic lawn mower.

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The design of the Stihl RMI 422 PC-L showcases a classic and functional approach. The top of the unit features a familiar stop button, ensuring a quick stop of the unit. Adjacent to it, the control panel and a rotating knob for cutting height adjustment are protected by a transparent plastic cover. 

Rmi 422 design

On the bottom, you’ll find the rotating blades for efficient mowing, along with two main grippy wheels for stability and maneuverability, supported by two smaller front wheels. Impressively, this robotic mower can handle slopes with an inclination of up to 22°, expanding its range of usability. With a weight of 19.8 lbs, it strikes a balance between maneuverability and sturdiness. 

The Stihl RMI 422 PC-L boasts a commendable 60-minute runtime, ensuring ample coverage before requiring a recharge. Overall, the Stihl RMI 422 PC-L’s design combines functionality, durability, and the ability to handle various terrain types, making it a reliable choice for maintaining a well-groomed lawn.

Usability and setup

The usability and setup process of the Stihl RMI 422 PC-L is relatively straightforward. While the setup can be time-consuming, it offers two options: self-installation or professional installation for those who prefer assistance. 

Stihl rmi 422 returning to station

If opting for self-installation, it is crucial to find a level and shaded surface near a power supply for the docking station. Installing the perimeter wire along the lawn’s edges requires careful attention to ensure it is properly fixed to the ground, preventing tripping or accidental cuts. 

Once the wires are connected to the station, the initial run allows for verification of a successful setup and ensures unobstructed paths for the mower. The RMI 422 PC-L should easily find its way back to the charging station, indicating correct wire installation. 

In case of obstacles, the perimeter wire can be easily adjusted. After completing these steps, you can customize the mowing plan by scheduling and adjusting mowing times according to their preferences. Overall, with a bit of patience and attention to detail during setup, the RMI 422 offers a user-friendly and customizable experience.


The maintenance of the Stihl RMI 422 PC-L is designed to be straightforward and time-efficient. It involves a few simple tasks that ensure optimal performance. Regularly checking the cutting blades is essential, as they may require cleaning or replacement after extended use. 

Rmi 422 maintenance

It is advisable to inspect the wheels and clean off any accumulated dirt or mud, particularly after rainy days. Cleaning the mower is made easy by rinsing underneath with a garden hose and washing the exterior. By adhering to these maintenance practices, you can keep your Stihl RMI 422 in excellent condition, ensuring continued efficiency and a well-maintained lawn.

Should you buy it?

The Rmi 422 PC-L delivers a consistent mowing performance; it works quietly, so it won’t bother your neighbors. Also, the price is around 1300$, which is reasonable, especially for a quality robotic lawn mower. If you need more customization and additional features and specs, you should check out one of Husqvarna’s models, the 430x or the 415x

Conversely, if the price is too high, you should check out the more affordable units, such as the Landxcape lx835. Overall, choosing to invest in the Stihl RMI 422 PC-L is unlikely to disappoint, as it provides a reliable and efficient solution for automated lawn care.


When considering whether to invest in a robotic lawn mower, the main question that arises is whether it’s worth the price. The truth is that the time and effort it saves you makes the Imow 422 a worthwhile investment. Although sometimes it may need manual intervention, overall, you’ll have a hands-free experience granting you the freedom to spend your precious time on more important things. 

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