GARDENA smart SILENO sense
A small wire-free mower that combines an AI camera with satellite RTK and comes with free lifetime mobile data. Easy to set up, but it only mows in daylight and covers little ground per charge.
- Lawn sizeup to 600 m²
- NavigationHybrid (RTK + vision/LiDAR)
- Max slope25%
- Versions1
Prices and stock
smart SILENO sense 600 m² · up to 600 m²
| Retailer | Price | Stock | Buy |
|---|---|---|---|
| MincostChecked | £999 | In stock | View deal |
Prices include VAT and are checked automatically. They can change at any time. How we get prices · Links are not affiliate links. Why
Our verdict
Should you buy the smart SILENO sense?
A desk-based verdict from the manufacturer’s specifications, manuals and UK warranty terms.
Pros
- No wire, antenna or beacons
- Camera object recognition for obstacles, processed on the mower
- Built-in SIM with free lifetime connectivity, or Wi-Fi
- Zones and no-go areas in the smart App
- Three-year warranty with registration
Cons
- Only about 40 minutes of mowing per charge
- Daylight-only operation limits scheduling
- Modest 25% slope rating
- No anti-theft alarm listed
- Gardena doesn't publish the charge time on its UK page
Who it’s for
- Small to medium lawns up to about 500 m²
- Buyers who want no wire and no subscription
- Gardens with toys, garden furniture or pets on the lawn
- Homes where Wi-Fi doesn't reach the garden
Who should avoid it
- You want to mow at night or early morning: it needs daylight
- Your lawn is sloping: Gardena rates it for 25%
- You want long grass: the maximum height is 45 mm
Specifications
smart SILENO sense specifications
The manufacturer’s published figures, each linked to its source. Where versions differ, each is listed.
| Rated lawn area | 600 m²: 600 m²Source: manufacturer product page |
|---|
| Navigation | Hybrid (RTK + vision/LiDAR)Source: manufacturer product page |
|---|---|
| Positioning and obstacle sensors | GNSS RTK, vision camera, lift sensorSource: manufacturer product page |
| RTK base station needed | |
| 4G | |
| Subscription needed | |
| Wi-Fi |
| Max slope | 600 m²: 25%Source: manufacturer product page |
|---|
| Cutting width | 600 m²: 160 mmSource: manufacturer product page |
|---|---|
| Min cutting height | 600 m²: 25 mmSource: manufacturer product page |
| Max cutting height | 600 m²: 45 mmSource: manufacturer product page |
| Blade type | 600 m²: 1 blade disc with 3 blades (blades at the rear of the mower)Source: manufacturer product page |
| Blades | 600 m²: 3Source: manufacturer product page |
| Edge cutting |
| Mowing time per charge | 600 m²: 40 minSource: manufacturer product page |
|---|
| Weight | 600 m²: 9.5 kgSource: manufacturer product page |
|---|---|
| Dimensions (L × W × H) | 600 m²: 603 × 405 × 262Source: manufacturer product page |
| Noise | 600 m²: 57 dB(A)Source: manufacturer product page |
| Water/dust rating | 600 m²: IPX5Source: manufacturer product page |
| App | GARDENA smart AppSource: manufacturer product page |
|---|---|
| Obstacle avoidance | Vision AI camera object recognitionSource: manufacturer product page |
| No-go zones | |
| Camera | |
| Theft alarm | 600 m²: NoSource: manufacturer product page |
| PIN lock | 600 m²: YesSource: manufacturer product page |
| Warranty | |
|---|---|
| Garage included |
links go to the manufacturer source for each figure. Figures are the manufacturer’s own claims unless marked otherwise.
Claims vs reality
Where the brand’s marketing and its own small print don’t agree.
They sayNo hidden costs: free lifetime connectivity.
In practiceGardena doesn't express 'lifetime' in years, so it isn't clear how long the free data runs or what happens if the network changes. Wi-Fi can be used instead. Source
They sayRated for 600 m².
In practiceGardena lists about 40 minutes of mowing per charge and says the mower needs daylight, so it relies on many short sessions spread across daylight hours to cover that area. Source
How it navigates and sets up
The smart SILENO sense is wire-free. Gardena combines a camera running vision AI with satellite RTK positioning, and there are no wires, antennas or beacons to install. You set the lawn, zones and no-go areas in the GARDENA smart App. Pairing satellites with a camera generally helps near buildings and trees, where satellite signal alone can wander; see our navigation guide.
The trade-off is that the camera needs light, so Gardena says the sense only works in daylight. Its slope rating is 25%, the same at the lawn edge as inside, which is modest; a sloping garden needs something else.
Cutting
A single disc with three blades sits at the rear of the mower and cuts 160 mm. Height runs from 25 mm to 45 mm. Gardena claims Trim-to-Edge along solid edges such as walls and fences, not every border. It quotes 57 dB(A). With about 40 minutes of mowing per charge, the mower relies on frequent short runs, so give it a generous daily window.
App, connectivity and security
This is the only SILENO with a built-in SIM, which Gardena says has free lifetime data. It can use Wi-Fi instead, and it doesn't need the smart Gateway. That makes it the easiest SILENO to run in a garden away from the house. Security is a PIN code; Gardena lists no alarm. Camera images stay on the mower, according to Gardena.
Running costs, warranty and support
The warranty is 3 years after registration at gardena.com/registration; batteries and blades aren't covered. Gardena doesn't publish a UK RRP or sell direct, so prices come from retailers. Daylight-only running pairs well with the advice in our hedgehog guide.
Price history
Price history will appear here once we’ve tracked this model for a few days.
smart SILENO sense questions and answers
How can the Gardena SILENO sense cover 600 m² with only 40 minutes of mowing per charge?
By mowing little and often. Gardena rates the GARDENA smart SILENO sense for 600 m² and quotes about 40 minutes of mowing per charge, so the rating assumes many short sessions spread through the day, with trips back to the charging station in between. Gardena doesn't publish the charge time on its UK page, which makes it hard to work out how many sessions fit into a day.
Two other limits squeeze the working window. The mower relies on its camera, and Gardena says it needs daylight, so night-time runs are off the table. And the cut is 160 mm wide, which means more passes to cover a given area than a wider-deck mower.
Put together, the 600 m² figure is best read as a ceiling for a simple, open lawn with a generous daytime schedule. Gardena also states its area ratings with a tolerance of plus or minus 20%. For lawns of about 500 m² or less, the sense fits comfortably. For something closer to the limit, or a garden with lots of beds and corners, look at a model with a longer run time, such as the GARDENA smart SILENO free, which Gardena says mows for about 140 minutes per charge.
Our lawn size tool helps you get an accurate measurement before choosing.
How long does the free mobile data on the Gardena SILENO sense last?
Gardena describes it as free lifetime connectivity but doesn't define "lifetime" in years. The GARDENA smart SILENO sense has a built-in SIM, and Gardena's UK page says there are no hidden costs or subscription fees. It doesn't say whose lifetime is meant (the product's, the SIM contract's or the network's), or what happens if a mobile network used by the SIM is switched off in future.
The sense can also connect over Wi-Fi instead of mobile data, which is a useful fallback if the garden is within range of your router. It doesn't need Gardena's smart Gateway.
If long-term connectivity matters to you, keep your purchase paperwork and the registration emails, and check the terms shown in the smart App during setup. Our 4G and network RTK guide explains how mower data plans work more generally.
More questions
Frequently asked questions
Does the SILENO sense work at night?
No. Gardena says it needs daylight because it relies on its camera. That also happens to suit hedgehog-friendly schedules, which avoid dusk and night mowing.
Is there a subscription for the SIM?
Gardena says the built-in SIM comes with free lifetime connectivity and there are no subscription costs. You can also connect it to Wi-Fi.
Does the camera upload pictures of my garden?
Gardena says images are processed and kept on the mower rather than uploaded to the cloud.
Is there a smaller SILENO sense?
Gardena's international site shows a 400 m² version, but only the 600 m² model is on the UK site.
Also consider
Alternatives to the smart SILENO sense
Similar mowers that trade something for something else: price, wire, slope or size.
Alternative
Husqvarna Automower Aspire R6V
- Up to 600 m²
- Hybrid (RTK + vision/LiDAR)
- 40% slopes
Cheaper option
Segway Navimow i Series (i1)
- Up to 800 m²
- Hybrid (RTK + vision/LiDAR)
- 30% slopes
Cheaper option
Worx Landroid Vision Cloud
- Up to 1,800 m²
- Hybrid (RTK + vision/LiDAR)
- 30% slopes
Wired alternative
GARDENA SILENO city
- Up to 500 m²
- Perimeter wire
- 35% slopes
Owning one
Accessories, guides and tools
Compatible accessories
- Mower Wheel Brushes for smart SILENO pro / max / sense / free
- SILENO Robotic Mower Garage for SILENO pro / max / sense / free
Last updated 2026-09-29. Specs are the manufacturer’s own figures, each linked to its source. How we score · How we get prices · Report an error