• Side view of a Gardena robotic lawn mower with control buttons.
  • Two robotic lawn mowers with control panels, featuring wire-free and trim-to-edge capabilities.
  • Robotic lawn mower with dimensions and weight displayed.
  • Top view of a Gardena robotic lawn mower with accessories including a charging station, power adapter, and a sensor module.
  • Gardena smart SILENO free robotic lawn mower packaging with product features highlighted.
  • A robotic lawn mower operating on a well-maintained lawn near a modern house.
  • Robotic lawn mower operating on a neatly trimmed lawn beside a garden bed with lush plants.
  • Gardena robotic lawn mower operating on a neatly trimmed lawn beside a flower bed.
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smart SILENO free 600 m², robotic lawn mower

Article No. 19921-20
Online registration required info
In order to use the GARDENA smart system app and the functionalities of your GARDENA smart gardening tool, an online registration and set up of a user account with GARDENA or our group of companies, the Husqvarna Group, is required. Username and email address are required to set up a GARDENA user account. You just need to follow the instructions displayed in the app when setting up. By the way: When setting up your GARDENA user account, you can use a user name of your choice. No need to use your first and last name if you don't want to. The provided email account serves as verification that you are the authorised person to access the email account. Here you can also use an email address that does not include your first and / or last name. You can find more information about this in our privacy policy for smart devices . . If you have any questions about online registration, you can also contact a distributor in your country or contact service@gardena.com. Our colleagues in customer service are happy to help you with your enquiry.
Area capacity
600 m²
Boundary type
Virtual wire
App controlled
GARDENA smart system App (Online registration required, see description)
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GARDENA Smart SILENO free 600 m². AI-powered*, boundary-wire free* smart mower

  • Boundary-wire free*: Get started straight away without installing any wires, antennas, or beacons
  • Trim-to-Edge cuts close to solid edges like walls and fences
  • LONA™ Intelligence*: AI-based technology that learns, maps and adapts to individual gardens
  • Anti-collision Radar: Add-on accessory protects the mower and garden surroundings (sold separately)
  • Included: 1x GARDENA smart SILENO free 600 m², 1x charging station, 1x smart Gateway, 1x Installation Aid

Learns. Adapts. Evolves. For a well-kept lawn. With the smart SILENO free robotic mower laying a wire is a thing of the past. Featuring boundary wire-free technology*, innovative AI-based LONA™ Intelligence* and two cutting discs, this smart robotic mower trims lawns of up to 600 m².

Boundary-wire free technology*

Get started straight away without installing any wires, antennas, or beacons. The smart SILENO free robotic mower operates on satellite-based signals (Global Navigation Satellite Systems) and can easily be programmed via the GARDENA smart App* – no incurred costs for subscription models. Tailored to the exact contour of your lawn.

Trim-to-Edge precision mowing

The smart SILENO free robotic mower patrols the space within your virtual boundary with power and precision. For a neat and tidy finish, the robotic mower trims the lawn close to solid walls, fences, and boundaries.

LONA™ Intelligence*

Thanks to LONA™ Intelligence, your smart mower knows the shape of your lawn like the back of your hand. Using AI-based technology, it learns, maps, and adapts to individual gardens. You will be able to track your SILENO’s movement in real time, easily define no-mow areas or mowing zones and set up bespoke maintenance settings for them – conveniently done in the GARDENA smart App*. Facilitating the way to precise mowing results now and in the future.

Anti-collision Radar accessory

Enhance your smart SILENO free robotic mower with the Anti-collision Radar (sold separately). This accessory helps protect the robotic lawn mower and your garden surroundings from damage caused by collisions with objects. And thanks to toolless installation it is pleasantly easy to use.

DualCutting Disc [for a tidy finish]

The smart SILENO free robotic mower features not one but two cutting discs – for efficient mowing times and improved lawn coverage compared to mowers with a smaller single cutting disc.

*The use of the smart SILENO free, LONA™ Intelligence and the GARDENA smart system requires GNSS reception (Global Navigation Satellite Systems), a sufficient internet connection and the GARDENA smart App (use on a smartphone or tablet with iOS 17/Android 9 or higher recommended). In order to use the GARDENA smart App, you need to register online and set up a user account with GARDENA or our corporate group, the Husqvarna Group. Furthermore, consent to our terms and conditions is required in the GARDENA smart App, available at www.gardena.com/smartapp-terms. We will inform you about the processing of your personal data while using the GARDENA smart App in our Privacy Notice, available at www.gardena.com/smartapp-privacy.
Two robotic lawn mowers with control panels, featuring wire-free and trim-to-edge capabilities.

Technical Specifications

Commercial reference
19921-20
GTIN-13/EAN
4066407025103

Productivity

Area capacity
600 m²
Maximum slope performance inside installation
35 %
Maximum slope performance at boundary
35 %

Product

Display
None
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Commercial reference
19921-20
GTIN-13/EAN
4066407025103

Productivity

Area capacity
600 m²
Maximum slope performance inside installation
35 %
Maximum slope performance at boundary
35 %

Product

Display
None
Schedule
Yes
Handle type
Integrated
Firmware Update
FOTA
Protection Index (IP Code)
IPX5
Boundary type
Virtual wire

Power and charging

Typical charging time
100 min
Typical mow time on one charge
140 min
Mean energy consumption per month at maximum use
4 kWh

Motor and cutting system

Cutting system
2 discs with 3 pivoting razor blades
Cutting height min
25 mm
Cutting height max
45 mm
Cutting width
22 cm
Dual cutting direction
Yes
Daily active time (mowing & charging) required
9 h for maximum area capacity

Sound and noise data

Sound level perceived
58 dB(A)

Safety and security features

Alarm
No
PIN code
Yes
Lift sensor
Yes

Installation accessories

Loop wire
0 m
Low voltage cable
20 m
Stakes
0 pcs

Overall dimensions

Weight (complete product w/o side packed articles)
13.82 kg
Product size length
63 cm
Product size width
43 cm
Product size height
26 cm
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Features
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    Boundary-wire free*

    Get started straight away without installing any wires, antennas, or beacons. *Requires GNSS reception (Global Navigation Satellite Systems), a sufficient internet connection and the GARDENA smart App.
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  • 2/8

    Trims close to the lawn's edge

    Trim-to-Edge cuts close to solid edges like walls and fences.
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    Smart with LONA™ Intelligence*

    AI-based technology* that learns, maps and adapts to individual gardens. *Requires the smart Gateway (sold separately), a sufficient internet connection and the GARDENA smart App.
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  • 4/8

    Anti-collision Radar accessory

    Add-on accessory protects the mower and garden surroundings (sold separately).
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  • 5/8

    For lawns of up to 600 m²

    Two cutting discs for efficient mowing times and improved lawn coverage.
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  • 6/8

    Pro-silent: Works quietly

    One of the quietest mowers in its class with perceived sound power levels of just 58 dB(A).
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  • 7/8

    Strong slope performance

    Maintains slopes of up to 30 %.
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  • 8/8

    Easy cleaning

    Waterproof for easy cleaning with garden hose.
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Videos
  • 19921 smartSILENOfree FV MASTER-2025-EN
    1/1
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Product accessories

Service and product documentation

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Everything you need to know

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Product documentation

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Spare Parts

smart SILENO free 600 m², robotic lawn mower

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