Robotic lawn mowers take over the time-consuming lawn care in the garden. Only the pre-setting has to be done by the user. Otherwise, the robotic lawnmower works completely autonomously. Depending on the model, the robotic lawnmower can trim garden areas of up to 1000 square metres. Various cutting heights can be set manually as desired. Many robotic lawnmowers can even withstand rain and achieve a clean result.
By means of the robotic lawnmower test 2021 we help you to find the most suitable robotic lawnmower for you. It doesn't matter whether you prefer a robotic lawnmower with or without a boundary wire. We have listed some of the top models of both types, so you are sure to find the right one for you.
- 1 Weekly newsletter with the best personal finance tips
- 2 The most important facts
- 3 The Best Robotic Lawn Mower: Our Picks
- 4 Buying and evaluation criteria for robotic lawn mowers
- 5 Decision: What types of robotic lawnmowers are there and which one is right for you?
- 6 Guide: Frequently asked questions about robotic lawnmowers answered in detail
- 6.1 What is a robotic lawnmower?
- 6.2 How does the robotic lawnmower know how to drive?
- 6.3 How is the robotic lawnmower controlled/adjusted?
- 6.4 How does a robotic lawnmower react to rain?
- 6.5 What are the advantages and disadvantages of a robotic lawnmower?
- 6.6 How can the robotic lawnmower be recharged?
- 6.7 What alternatives are there to a robotic lawnmower?
The most important facts
- With a robotic lawnmower, you are spared the physical effort of mowing. After a short preset, the robotic lawnmower works autonomously
- Robotic lawn mowers are suitable for areas up to around 1000 square metres. However, the use of a robotic lawnmower can also be worthwhile for small garden areas.
- The robotic lawnmower can be guided by a boundary wire. Alternatively, many devices have highly sensitive sensors that provide the robot with important information about its surroundings.
The Best Robotic Lawn Mower: Our Picks
Buying and evaluation criteria for robotic lawn mowers
In the following, we have listed some aspects for you to decide between different robotic lawn mowers.
These criteria will help you compare robotic lawn mowers with each other:
- Cutting width / size
- Cutting height
- Suitability according to lawn size
- Edge function
- Replacement blades
When it comes to weight, the robotic lawnmower scores particularly well. The small lawn trimmer is already available from 7 kilograms and usually does not exceed 11 kilograms.
In contrast to conventional, large lawn mowers with an average of 30 kilograms, the battery-powered robotic lawn mower is thus a lightweight. It is therefore particularly suitable for older people or people with a handicap. The robotic lawnmower carries its weight all by itself. Human effort by pushing is no longer necessary.
The low weight of the robotic lawnmower is also noticeable when stowing it away. It can be easily lifted and placed in a storage space provided for it.
Cutting width / size
Depending on how a garden is laid out, the cutting width of a robotic lawnmower requires special attention. The range of available sizes does not differ too much. Nevertheless, some people should take a closer look at the lawn they want to mow beforehand.
This is especially true if flowers are planted close together on the lawn. If there are thin strips of grass between them, you should definitely consider the cutting width when choosing a robotic lawnmower. This is the only way to avoid damaging free-standing plants.
Robotic lawnmowers with a very narrow cutting width are therefore suitable for narrow passages. If the lawn does not have any such narrow green strips, the focus can be shifted away from the cutting width to other criteria.
Smaller robotic lawnmowers already shorten the lawn to a width of around 17 centimetres. Somewhat larger models achieve a cutting width of up to 28 centimetres. The small robotic lawnmower can thus also reach lawns for which conventional lawnmower models are simply too bulky.
The relevance of the correct cutting height is often underestimated. Yet it is an important factor that ultimately determines the healthy growth of the lawn. If you choose the wrong cutting height, for example, weeds may grow.
To prevent this from happening to your lawn, you should know what cutting heights are available and how to set them correctly on the robotic lawnmower. Depending on the model, a robotic lawnmower can shorten your lawn by 1.5 to 6 centimetres.
To find the right cutting height for you, it makes sense to first clarify various influencing factors.
- Commercial lawns: A cutting height of 3.5 to 5 centimetres is suitable for commercial lawns.
- Ornamental lawn: If it is an ornamental lawn, a setting of 2 to 3 centimetres should be made.
- Season: Another influencing factor is the time of year. To prepare the lawn for the winter season, it makes sense to choose a cutting height of 2 to 3 centimetres.
- Freshly sown: If you have just sown your lawn, the cutting height should be 5 centimetres.
Depending on the type of robotic lawnmower, the cutting height can be determined manually using a wheel or a display. In both cases, it is advisable to do this in switched-off mode.
Suitability according to lawn size
The small robotic lawnmower demonstrates its advantages when it comes to suitability according to lawn size. On the one hand, it is in no way inferior to the conventional version of the large lawn mower. Similar to the latter, certain models of robotic lawnmowers are suitable for areas up to 1000 square metres.
If you have a smaller property, you can also opt for a type of robotic lawnmower that is not designed for such large areas. These make sense for city dwellers with a small garden plot. Here, the recommended lawn size starts at around 350 square metres.
Many owners of normal lawn mowers miss the ability to mow cleanly along the edge of a lawn. Robotic lawn mowers do not necessarily have this function. If this feature plays a decisive role for you, you should make sure that it is available before buying.
If you decide on a robotic lawnmower with edge mowing function, it can shorten the lawn up to 2 centimetres before the lawn edge. With lawn edging stones, all blades of grass even disappear and manual reworking is no longer necessary. The choice of your robotic lawnmower depends on the width of the lawn edge.
The distance from the mowing blade to the protective cover of the robotic lawnmower varies depending on the model. The greater the distance, the further the robot can travel beyond the stone edge. It is best to measure the edge of your lawn in advance. Then you can choose your robotic lawnmower accordingly.
After a certain time, the blades of your robotic lawnmower can wear out. In this case you will not get a clean mowing result. This is due to blunted blades caused by stones or sticks.
In this case, replacement is essential. Replacement blades are not necessarily part of the initial equipment when buying a robotic lawnmower. Find out in advance which manufacturer's models come with replacement blades. You can buy replacement blades from the original manufacturer of your robotic lawnmower or often from third-party suppliers.
Decision: What types of robotic lawnmowers are there and which one is right for you?
There are two different types of robotic lawnmowers you can choose from:
|robotic lawnmower with boundary wire||exact area determination||possible slippage of boundary wire|
|robotic lawnmower without boundary wire||quick start-up||possible sensor inaccuracy|
The models of robotic lawnmowers can be divided into devices with and without a boundary wire.
Depending on which type you choose, there are some advantages and disadvantages to consider. The main difference between the two types is the amount of preparatory work that needs to be done and the final mowing result. The following section is intended to help you make your decision:
Guide: Frequently asked questions about robotic lawnmowers answered in detail
What is a robotic lawnmower?
This type of mowing is particularly convenient for older people or people with a handicap. The presetting can easily be done via a display or an app. Compared to conventional lawnmowers, the robotic lawnmower is quite small and can therefore also work on lawns that are difficult to access.
How does the robotic lawnmower know how to drive?
Other model variants rely solely on their sensors. Various sensors constantly transmit information to the robotic lawnmower, which it can use to orient itself. In this way, it knows when it needs to avoid an object or perceives changes in the weather, such as rain. Many robotic lawnmowers can also recognise lawn edging stones and move along them.
How is the robotic lawnmower controlled/adjusted?
Finally, you must tell the robotic lawnmower at which cutting height it should mow. You can find more information on this topic in the section on buying and evaluation criteria above. Many robotic lawnmowers also offer the option of setting specific mowing and break times.
How does a robotic lawnmower react to rain?
The protection of the electronics of the robotic lawnmower is ensured by a robust housing. The casing of the robotic lawnmower can even withstand small hailstones in extreme cases. Damage caused by precipitation is therefore the exception to the rule for robotic lawnmowers.
Many manufacturers of robotic lawnmowers already integrate a rain sensor in their devices. The sensitivity of the sensor can usually be manually adjusted by the user afterwards. Ultimately, you can decide for yourself whether the robotic lawnmower should pause or continue its work when it rains.
What are the advantages and disadvantages of a robotic lawnmower?
In addition, many of these robotic lawnmowers are all-weather capable. While you would otherwise not be able to go out in the rain to work on your lawn, the robot simply continues to cut. In strong sunlight, many models still allow you to read the display without difficulty.
A robotic lawnmower is a real space-saver, especially for those who have little room in their shed or the like. Due to its small size, it takes up very little space. Alternatively, it is possible to buy a kind of small garage for the robotic lawnmower. This can then be placed directly in the garden.
Not quite as much in favour of the robotic lawnmower, however, are the prices. There are cheaper exceptions, but as a rule you should expect to pay around 600 euros. There is still a lot of room for improvement.
You should also be aware that robotic lawnmowers can miss small objects lying around. This information is particularly important in the context of children. If small toys are left on the lawn, the robotic lawnmower can be damaged if it runs over them.
How can the robotic lawnmower be recharged?
Another method of charging is via solar cells in some robotic lawnmower models. A major disadvantage in this case is of course the dependence on solar radiation.
What alternatives are there to a robotic lawnmower?
|Battery-powered lawn mower||lawn mower powered by a battery that needs to be recharged from time to time|
|Electric lawn mower||lawn mower contains a cord with a plug|
|Petrol lawn mower||lawn mower with a petrol pump that starts the engine|
What all these types have roughly in common, however, is size. In contrast to a small robotic lawnmower, the normal lawnmower is much larger. In addition, the conventional version depends on the user's cooperation, while the robotic lawnmower works autonomously after being preset.
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