ambrogio twenty zr

Ambrogio Twenty Zr review – A wire-free solution for your Garden?


Product score

The scoring is based on user reviews and experiences on major online stores and our personal opinions about the product. We consider how well it works, its features, how much it costs, and how easy it is to use when we give something a score.



Table of Contents

When you ask anyone owning a robotic lawnmower, what is the most frustrating thing about these robotic mowers, most people will say the initial setup process. Why, you ask? Because it takes time, and you need to readjust the wires sometimes, not to mention that you can accidentally cut them, which immediately needs to be prepared. The Ambrogio Twenty Zr, however, doesn’t need boundary wires to work. With that said, let’s see what other surprises this smart machine has to offer.

Pros and cons

The Ambrogio Twenty Zr offers several noteworthy advantages, making it an appealing choice for anyone looking for a convenient and efficient lawn care solution. Firstly, the robot stands out for eliminating the need to lay down boundary wires, sparing you from the laborious and time-consuming setup process. 

Twenty Zr top view

Additionally, its app control feature allows for effortless management, granting you the flexibility to schedule mowing sessions remotely. The Ambrogio Twenty Zr also impresses with its commendable efficiency in mowing, ensuring a well-groomed lawn with minimal effort required from you.

However, there are some downsides to consider before investing in this robotic lawnmower. The price is pretty high due to this new technology, which might be a reason not to buy for some. 

However, boundaryless mowers are generally priced high. Moreover, the Ambrogio Twenty Zr’s suitability is limited to specific garden setups, as it requires certain parameters to function optimally. These limitations might restrict its application and necessitate careful consideration of the garden’s layout before making a purchase decision.

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The Ambrogio Twenty Zr boasts a wide array of advanced features that make lawn maintenance a breeze. One of its standout capabilities is the boundaryless operation right out of the box, eliminating the need for laying down boundary wires. Equipped with obstacle detection and a grass recognition system, it navigates effortlessly around obstacles and accurately identifies the grass for efficient mowing. 

With an average work time of approximately 4 hours, plus or minus 20%, it ensures substantial coverage before requiring auto charging. The convenience of app control allows you to remotely manage and monitor the mower, with an added layer of security through pin code access. 

The integrated rain sensor enables the mower to avoid mowing during inclement weather automatically. The Ambrogio Twenty Zr can manage up to 4 different areas, accommodating diverse garden layouts. Engaging in eco mode helps conserve energy while maintaining optimum performance. Safety remains paramount with the automatic blade-stopping feature. 

You can conveniently set schedules for the mower to operate at preferred times. Lastly, the cutting height adjustment feature ensures precision in maintaining the desired grass height. Overall, the Ambrogio Twenty Zr offers a comprehensive suite of features that redefine autonomous lawn care with efficiency, convenience, and cutting-edge technology.


The design of the Ambrogio Twenty Zr sets it apart from the typical robotic lawnmower, showcasing a distinctive and appealing “robotic” appearance. The unit’s overall aesthetics exude a sense of modernity and functionality. The intuitive control panel, conveniently located on the top of the mower, ensures effortless operation. A prominent red stop button provides quick access for added safety. 

Twenty Zr control panel

On the underside, the presence of two large grippy wheels, along with two smaller front wheels, contributes to its excellent maneuverability and stability while navigating various terrains. 

Ambrogio Zr cutting system

Notably, the Ambrogio Twenty Zr deviates from the conventional separate blade style and adopts a 4-point star-cutting system, which enhances its cutting efficiency and precision. The working area of the unit is 1000 sqm or 0.25 acres.

Usability and setup

The Ambrogio Twenty Zr shines when it comes to usability, plus the setup process is also easy due to the boundary-free operation. The only wires you need to lay down are the guiding wires to the charging station, but that isn’t a long process; plus, you can bury them if you want.

To start, place the docking station on a level surface, shaded if possible, near a power supply. This mower does not rely on boundary wires; instead, it uses different sensors to detect different surfaces for mowing. One important thing you need to know about setting up no-go zones is that you have a few options here: use small walls (minimum height of 15cm), small arches (minimum height of 15cm), or paving (minimum width of 25 cm, maximum height of 5 cm).

Ambrogio twenty Zr mowing

Before the first use, preparing the mowing area involves removing low objects and ensuring there are no hindrances like holes in the ground. The presence of trees and larger objects is not an issue, but any significant roots should be fenced or delimited to avoid obstruction. 

For backyards with artificial lakes or pools without level differences, the paving width should be at least 75 cm, or other options such as small walls, protection acres, or wider terrain with no grass(100 cm) can be utilized. The guiding wires should be placed according to the manual’s instructions, leaving at least 30 cm between the two cables. 

They can be either fixed on the ground or slightly buried. Before burying, though, a thorough test should be conducted to ensure everything functions smoothly. With these clear setup guidelines and user-friendly features, the Ambrogio Twenty Zr promises a straightforward and efficient lawn maintenance experience.


Maintaining the Ambrogio Twenty Zr is a straightforward and time-efficient process. Regular checks and cleaning ensure optimal performance and longevity. The cutting system requires periodic inspection, cleaning, and eventual replacement when necessary. 

It is essential to check and clean the wheels, especially after rainy days, to prevent dirt or mud buildup and ensure unobstructed movement. During winter, storing the mower in a dry place instead of leaving it outside will help extend its lifespan. 

Cleaning the underside of the unit is as simple as using a garden hose to remove excess dirt. By following these easy maintenance steps, owners can keep their Ambrogio Twenty Zr in excellent condition, guaranteeing consistent and efficient lawn care without much hassle or time investment.

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Should you buy it?

The Ambrogio Twenty Zr is undeniably an impressive robotic lawnmower, boasting excellent mowing performance and the convenience of boundary-free operation. However, you should consider a few factors before making a decision to invest in this unit.

Twenty Zr mowing

In order for the unit to work optimally, different criteria need to be fulfilled, such as simpler yard setup and all the factors mentioned above; also, you need to have the budget for it. If everything checks out, plus you have the financial means, the Twenty Zr could be an ideal choice for anyone looking for a convenient and efficient unit.

If your yard does not meet the necessary criteria or the price is too high for you, there are plenty of options out there to explore for different yard sizes. Considering all the factors mentioned, you can avoid unpleasant surprises and make an informed decision.


So are the boundaryless robot mowers worth it? If you have the right garden setup and the budget for it, there is no doubt that it is a worthwhile investment. The current price of the Twenty Zr is around 1700-1800$, which is not the most affordable price, but the good news is that the technology is evolving, and the accuracy is getting better and better each day. Even in the boundary-free category, there are different models to choose from, each with its own set of ups and downs, so make sure to weigh all aspects before making a decision.

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