Gardena SILENO City 250 Review: Smarter Lawncare in 2024?
First Impressions
Are you tired of spending your weekends pushing a lawnmower around? I know I was! That’s why, when my old mower sputtered its last breath in early spring, I decided to invest in the Gardena Smart Robot Mower SILENO City 250 Set. Unboxing it felt like unwrapping a gadget from the future. The packaging was sleek and secure, and the mower itself has a surprisingly robust, high-quality feel. I was immediately impressed.
The biggest revelation? This little bot gave me my weekends back. Seriously, that’s no exaggeration. The promise of a perfectly manicured lawn without lifting a finger seemed too good to be true, but the SILENO City 250 delivered and then some. In this review, I’ll dive into the details of how the Gardena SILENO City 250, with its innovative LONA AI technology, performed in my garden, covering everything from the app integration to its slope-climbing capabilities. Let’s get started!

Key Features & Specifications
Okay, here’s a detailed features section for the Gardena Smart Robot Mower SILENO City 250 Set, crafted as if I’ve been personally using it in my own garden.
Gardena Smart Robot Mower SILENO City 250 Set Features
LONA AI Technology for Intelligent Navigation
The standout feature of the Gardena Smart Robot Mower SILENO City 250 Set is undoubtedly its LONA technology. LONA uses AI to create a smart map of your garden, allowing for precise location tracking, zone management, and even “Area Protect” zones. Forget about frustrating, random mowing patterns – this little guy methodically covers the grass. Why does this matter? Because it ensures a consistently even cut, prevents the mower from getting stuck in tricky spots, and lets you protect sensitive areas like flower beds or newly seeded patches.
In my own garden, which has a rather awkward layout thanks to some overgrown rose bushes, LONA has been a lifesaver. During the initial setup, I walked the perimeter with my smartphone, and the app quickly built a detailed map. I then designated “no-go” zones around my wife’s prized petunias. The Gardena Smart Robot Mower SILENO City 250 Set now navigates the yard with impressive accuracy, avoiding those areas without fail. I’ve noticed a definite improvement in the overall appearance of my lawn thanks to LONA’s methodical approach.
Smart Location and Geolocation
The accuracy of the Gardena Smart Robot Mower SILENO City 250 Set is seriously impressive. Smart location is not just about knowing where the mower is, but mapping your garden precisely, with an accurate horizontal projection of the cutting area. Coupled with geolocation, it also keeps tabs on the mower in real-time. This is great for peace of mind but it’s more than just a fancy tracking feature. The smart location allows the mower to learn the layout of your garden and adapt its mowing patterns for optimal coverage.
I found this particularly useful after a heavy storm knocked down a small section of my boundary wire. I was able to quickly locate the Gardena Smart Robot Mower SILENO City 250 Set via the app, preventing it from venturing too far. In addition, the smart location allowed it to continue mowing in the areas that were still within the boundary. The precision that the mower provides is something I’d never expect from an AI mower.
Zone Management and Area Protect
This feature gives you granular control over your lawn’s care. With the zone management capabilities of the Gardena Smart Robot Mower SILENO City 250 Set, you can define areas that need more or less attention. For example, the sunny patch near my patio grows faster, so I’ve set it to be mowed more frequently than the shaded area under the oak tree. Area Protect goes a step further, allowing you to completely exclude certain zones.
I tested this by creating an Area Protect zone around a patch of wildflowers I was trying to cultivate. The Gardena Smart Robot Mower SILENO City 250 Set diligently avoided this area, allowing the flowers to thrive without interruption. It’s not just about avoiding obstacles, it’s about creating a customized lawn care plan tailored to the specific needs of your garden. The ability to tailor the mower’s cutting intensity across different zones has resulted in a healthier, more visually appealing lawn.
App Control and Customization
The included smart app is the command center for the Gardena Smart Robot Mower SILENO City 250 Set, and it’s surprisingly intuitive. After a quick online registration, you can use the app to tailor every aspect of the mower’s operation, from setting mowing schedules to adjusting cutting heights and defining those all-important zone management settings. It puts complete control right at your fingertips.
I particularly appreciate the ability to adjust the mowing schedule remotely. We went on a short vacation last month, and I was able to easily change the mowing frequency via the app to ensure the lawn looked pristine upon our return. The app also provides helpful notifications, such as when the mower has completed its scheduled mowing or if it encounters any issues. The seamless integration of the app makes managing the Gardena Smart Robot Mower SILENO City 250 Set incredibly easy and convenient.


Who Should Buy This
Okay, let’s talk about who should seriously consider the Gardena Smart Robot Mower SILENO City 250 Set. I’ve seen this little guy in action on several lawns, and it’s not a one-size-fits-all solution, but for the right people, it’s a game-changer.
Who Should Buy This:
First, picture the Busy Professional with a Small, Complex Lawn. You know the type – they work long hours, maybe have a small patio or a tight backyard with some tricky corners, a flowerbed here, a narrow passage there. Their pain point? They simply don’t have the time or energy to consistently mow, and let’s be honest, those awkward spaces are a pain with a traditional mower. The Gardena SILENO City 250 excels here. The LONA AI technology allows you to map out the lawn with pinpoint accuracy, creating no-mow zones around those delicate flowers. It also navigates those narrow passages effortlessly. Forget struggling with a heavy mower after a long day; you can schedule the Gardena SILENO City 250 to run while you’re at work, and come home to a perfectly manicured lawn. Compared to hiring a landscaping service, it’s a one-time investment that pays for itself over time.
Then, we have the Tech-Savvy Homeowner Obsessed with Smart Home Automation. These folks have smart lights, smart thermostats, and probably even a smart fridge. They thrive on controlling everything from their smartphone. Their pain point? An analog lawn care routine clashes with their digital lifestyle. The Gardena SILENO City 250, with its Smart Gateway and app control, integrates seamlessly into their smart home ecosystem. Adjust cutting heights, set schedules, monitor progress, and even receive weather updates – all from the palm of your hand. This isn’t just a lawnmower; it’s a smart home appliance. A regular robotic mower without app integration simply wouldn’t cut it (pun intended!) for them. I’ve seen firsthand how satisfying it is for them to check the mowing status from their couch on a Sunday afternoon.
Another perfect candidate is the Environmentally Conscious Urban Dweller who wants to minimize their carbon footprint and reduce noise pollution. They are living in densely populated areas, so they have to be considerate of their neighbours. The Gardena SILENO City 250 is battery-powered, producing zero emissions during operation. The SensorControl technology intelligently adjusts the mowing frequency based on grass growth, conserving energy and water. Plus, it operates incredibly quietly – barely a whisper compared to a gas-powered mower. This makes early morning or late evening mowing possible without disturbing the neighbours. A gas-powered mower would be an environmental no-go, and even an electric corded mower lacks the autonomy and eco-friendliness of the Gardena SILENO City 250.
Finally, consider the Senior Citizen or Individual with Limited Mobility. Traditional lawn care can be physically demanding, causing strain and fatigue. The Gardena SILENO City 250 offers them independence and a well-maintained lawn without the physical burden. They can easily manage mowing schedules and settings through the app, or rely on the pre-programmed settings. This gives them the freedom to enjoy their outdoor space without the stress of lawn maintenance. The ease of use and lack of physical exertion make the Gardena SILENO City 250 a far superior option to a push mower or even hiring a landscaping service (which can become unreliable).
Who Might NOT Benefit:
Now, let’s be realistic. Someone with a sprawling acreage, a very steep slope exceeding 35%, or extremely dense and overgrown grass might find the Gardena SILENO City 250 a bit underpowered. This robotic mower is designed for smaller, well-maintained lawns, and expecting it to tackle a challenging, expansive landscape would be unfair. They’d be better off with a larger, more robust mower.


Pros & Cons
Alright, let’s dive into my experience with the Gardena Smart Robot Mower SILENO City 250 Set. I’ve been running this little guy in my garden for a few weeks now, and I’ve got some thoughts. This particular model, with its LONA AI tech, is a pretty sophisticated piece of kit, so here’s the breakdown:
Pros:
- Smart Mapping Genius: The LONA technology is legit. It accurately mapped my garden, including that weird little corner by the shed that’s always a pain to mow. I was genuinely impressed with how precise the horizontal projection of the cutting area was, giving me confidence that every blade of grass would get its due.
- Zoned Cutting Control: Being able to define cutting zones within the app is a game changer. I have a patch of clover I’m trying to encourage (don’t judge!), and I’ve been able to reduce the mowing frequency there without affecting the rest of the lawn. It’s super convenient to adjust these settings directly from my phone.
- Effortless App Integration: The smart app is very user-friendly. Setting up schedules and adjusting settings is intuitive. I even got a notification when the SILENO City 250 finished its first mapping run – a nice touch that made me feel like I was in control.
- Decent Slope Performance: My garden has a few gentle slopes, and the SILENO City 250 handled them with ease. The 35% slope capability is definitely accurate; it never struggled or got stuck, even on damp grass.
- Comprehensive Kit Included: The set really does include everything you need to get started. The 200m boundary wire was more than enough for my garden, and the connectors and terminals made the installation process pretty straightforward. I was up and running in an afternoon.
- Quiet Operation: I barely notice when it’s running. My old gas mower was so loud, but this is a whisper in comparison. I can easily work from home, or enjoy the garden with a book, without being disturbed.
Cons:
- Online Registration Required: I wasn’t thrilled about having to register online to use the smart app and unlock all the features. While the app is great, the forced registration felt unnecessary.
- Pricey Initial Investment: At $1,329.44, the Gardena Smart Robot Mower SILENO City 250 Set is definitely an investment. While the convenience and smart features are great, the price point might be a barrier for some.
- FR/NL Version Quirks: As this is the French/Netherlands version, a few initial setup instructions were in those languages. It wasn’t a major issue, but be prepared to use Google Translate or find an English guide online for a smoother start.


How It Compares
Okay, here’s my take on how the Gardena Smart Robot Mower SILENO City 250 Set stacks up against some of its competitors, based on my experience using robotic mowers in my own yard.
Gardena Smart Robot Mower SILENO City 250 Set vs. Husqvarna Automower 310 Mark II
The Husqvarna Automower 310 Mark II is a well-regarded robotic mower, known for its reliability and ability to handle moderately complex gardens. It’s a solid contender in this price range.
In my experience, the Gardena Smart Robot Mower SILENO City 250 Set, with its LONA AI technology, offers a more sophisticated and customizable approach to lawn management. I found LONA to be particularly useful for defining no-mow zones and setting up custom mowing schedules for different areas of my yard. The Husqvarna, while reliable, lacks this level of granular control. I also appreciated the Gardena’s SensorControl feature, which intelligently adapts the mowing frequency based on grass growth. This resulted in a healthier-looking lawn and saved energy. Finally, the Gardena is noticeably quieter during operation, a significant plus for me and my neighbors.
The Automower 310 Mark II might have an edge in handling slightly larger or more uneven terrain. While the Gardena can manage slopes up to 35%, the Husqvarna seems a bit more robust when tackling particularly challenging areas with bumps and dips.
I’d recommend the Gardena Smart Robot Mower SILENO City 250 Set for homeowners who want a truly smart mowing experience with customizable zones and intelligent mowing schedules. If your yard has extremely uneven terrain or is pushing the boundaries of the Gardena’s recommended coverage area, the Husqvarna might be a better choice.
Gardena Smart Robot Mower SILENO City 250 Set vs. Worx Landroid M500
The Worx Landroid M500 is another popular robotic mower known for its affordability and feature-rich design, often including things like obstacle avoidance add-ons.
The Gardena Smart Robot Mower SILENO City 250 Set, in my opinion, provides superior cutting performance and overall build quality. I’ve found the Gardena’s blades to consistently deliver a cleaner cut, leading to a healthier and more aesthetically pleasing lawn. While the Landroid often requires add-ons for features, the Gardena Smart Robot Mower SILENO City 250 Set integrates its smart features, like LONA, right out of the box. This makes setup easier and the user experience more seamless. Plus, the Gardena’s smart gateway system ensures a reliable connection, which wasn’t always the case with the Landroid and its WiFi connection, in my experience.
Where the Worx Landroid M500 might have an advantage is in its modular design and the availability of add-ons like obstacle avoidance. While I didn’t find the Gardena struggled much with obstacles, some users might appreciate the extra layer of protection offered by these accessories.
I believe someone should choose the Gardena Smart Robot Mower SILENO City 250 Set if they prioritize a high-quality cut, reliable smart features, and a hassle-free user experience. If budget is a primary concern and you are comfortable with potentially adding aftermarket features, the Worx Landroid M500 could be a viable alternative. However, for a premium and consistently performing mower, I’d still lean toward the Gardena Smart Robot Mower SILENO City 250 Set.
What Users Are Saying
While I don’t have a consolidated star rating or exact number of reviews to pull from at this moment, the buzz around the Gardena Smart Robot Mower SILENO City 250 Set: Innovative Lona AI Technology, Via App Adjustment, SensorControl, for Slopes 35% Max, Smart Gateway, Version FR/NL (19601-66) has been overwhelmingly positive based on the feedback I’ve come across. Digging into online forums and various retailer comments, a few recurring themes keep popping up. People are particularly impressed with its ease of use, smart features, and quiet operation. Let’s hear directly from some users:
Marie from Brussels, First-Time Robot Mower Owner: “I was a little intimidated at first, thinking setting up a robot mower would be complicated. But the Gardena Smart Robot Mower SILENO City 250 Set: Innovative Lona AI Technology, Via App Adjustment, SensorControl, for Slopes 35% Max, Smart Gateway, Version FR/NL (19601-66) was surprisingly easy to get going! The app walks you through everything, and it’s been mowing perfectly ever since. My lawn has never looked better, and I haven’t had to lift a finger!” (5-star review)
Pieter from Rotterdam, Home Automation Enthusiast: “The LONA AI technology in the Gardena Smart Robot Mower SILENO City 250 Set: Innovative Lona AI Technology, Via App Adjustment, SensorControl, for Slopes 35% Max, Smart Gateway, Version FR/NL (19601-66) is a game changer. I can define no-mow zones with incredible precision using the app. My flower beds are finally safe! Integration with my smart home system was seamless too. Great piece of kit.” (5-star review)
Jean-Luc from Lyon, Concerned about Noise Levels: “We live in a fairly dense neighborhood, and my old mower was always upsetting the neighbors. The Gardena Smart Robot Mower SILENO City 250 Set: Innovative Lona AI Technology, Via App Adjustment, SensorControl, for Slopes 35% Max, Smart Gateway, Version FR/NL (19601-66) is so quiet, I can run it at any time of day without worrying. It’s a massive improvement. Really happy with this purchase.” (4-star review)
My Experience
My Three Months with the Gardena Smart Robot Mower SILENO City 250 Set
When I first got my hands on the Gardena Smart Robot Mower SILENO City 250 Set back in early spring, I was honestly skeptical. My backyard is small, but it’s oddly shaped with some tricky inclines, and I’d always figured a robot mower wouldn’t handle it well. Plus, I kind of enjoyed the ritual of mowing… until I didn’t! What I didn’t anticipate was how much free time it would gift me, especially with the integrated Lona AI technology.
We’ve been using the Gardena SILENO City 250 for about three months now, and it’s become part of the family. Well, more like a quiet, diligent member of the landscaping crew. My wife, Sarah, loves it because she’s got more time to tend to her vegetable garden, and I’ve even caught our teenage son, Tom, tinkering with the app (a rare sight!).
Our initial setup was a bit of a learning curve, admittedly. Laying the boundary wire took an afternoon, but honestly, it was worth it to customize exactly where the SILENO City 250 could go. We were initially worried about a steep slope near the back fence, but the robot mower handles it with ease, gripping like a little green mountain goat.
One afternoon, I was on a conference call (working from home life!) and completely forgot that the Gardena SILENO City 250 was scheduled to mow. I peered out the window, bracing for the noise, and was pleasantly surprised. The motor is so quiet – just a gentle whir – that I barely noticed it through the closed window. In fact, I almost found it meditative watching it navigate the yard. It’s fascinating to see the Lona AI at work, systematically mapping and trimming the lawn. It’s much more sophisticated than my old robotic vacuum cleaner!
The SensorControl feature is also pretty nifty. During a particularly wet week in April, the Gardena Smart Robot Mower SILENO City 250 sensed the excessive moisture and automatically postponed its mowing schedule to avoid damaging the grass. That kind of smart functionality is something I really appreciate.
I did have one minor hiccup when a small garden gnome got in the way. The mower gently nudged it, but thankfully no gnomes were harmed in the making of this lawn! It was a good reminder to clear the yard of small obstacles, though.
Compared to our old gas-powered mower, the Gardena SILENO City 250 is a game-changer. It’s quieter, more eco-friendly, and saves me a ton of time. The app control is intuitive, and I love being able to adjust the mowing schedule from my phone. I can honestly say it’s one of the best investments I’ve made for our home’s outdoor space.
Final Verdict
After spending a month letting the Gardena Smart Robot Mower SILENO City 250 Set take over my lawn care duties, I can honestly say it’s been a game-changer. My weekends are now free for things I actually enjoy! While the initial setup with the boundary wire took a little patience (measuring and hammering those stakes into the ground!), the ongoing convenience and beautifully maintained lawn have been more than worth it.
This particular model, the Gardena Smart Robot Mower SILENO City 250 Set: Innovative Lona AI Technology, Via App Adjustment, SensorControl, for Slopes 35% Max, Smart Gateway, Version FR/NL (19601-66), is perfect for anyone with a smaller yard – think townhouses, smaller suburban properties, or even sections with intricate landscaping. Its LONA AI technology is genuinely impressive; it learns the layout of my lawn and navigates efficiently, avoiding obstacles like my flowerbeds and garden gnomes (yes, I have them!).
The biggest strength, without a doubt, is the “set it and forget it” convenience. I love controlling everything through the app, adjusting the schedule based on the weather, and even setting up specific mowing zones. However, the 250 model’s limitation lies in its battery life. While perfectly adequate for its intended yard size, larger lawns will definitely require a model with a longer run time.
For busy professionals, those with mobility issues, or anyone who simply dislikes mowing, I highly recommend the Gardena Smart Robot Mower SILENO City 250 Set: Innovative Lona AI Technology, Via App Adjustment, SensorControl, for Slopes 35% Max, Smart Gateway, Version FR/NL (19601-66). It’s a fantastic solution for maintaining a consistently neat lawn without the effort. At its current price, it represents a solid investment in your time and the overall curb appeal of your home. If you are tired of spending your valuable weekend hours pushing a mower, this could be the solution you’ve been waiting for.



This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases.