GARDENA smart SILENO free 1200 m2: lawn size, slope and specs
Rated for lawns up to 1,200 m² (12,920 sq ft) and slopes up to 35% (19.3°). Works without a boundary wire.
Updated
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The GARDENA smart SILENO free 1200 m2 on your lawn
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Key numbers
What it needs
- Boundary wire
- None
- Sky
- No satellite view needed
- Installation
- By the owner
Sized for
Lawns of about 800 to 1,000 m² (8,610 to 10,760 sq ft). That is its rating divided by 1.5 for a complex lawn and by 1.2 for an open one, the margins the mower sizer adds for the shape of the lawn.
Slopes up to 30% pass with room to spare. From there to its 35% rating it is at its limit, and steeper ground rules it out. The methodology states both rules.
Full specifications
- Rated area
- 1,200 m² (12,920 sq ft)the maker's maximum
- Steepest slope
- 35% (19.3°)
- Steepest slope at the edge
- 35% (19.3°)
- Navigation
- No wire, own navigation system
- Boundary wire
- Not needed
- Cutting width
- 220 mm (8.7 in)
- Cutting height
- 25 to 45 mm (1 to 1.8 in)
- Separate lawn areas
- Yes
- Mowing time per charge
- 140 min
- Charging time
- 100 min
- Noise
- 58 dBmakers measure noise in different ways
- Weight
- 13.8 kg (30.5 lb)
- Water protection
- IPX5
- Theft protection
- PIN code and lift sensor
- Warranty
- Not published
- Installation
- By the owner
- Sold in
- UK and EU
Price by region
| Market | Price | Maker's page |
|---|---|---|
| United States | Not sold there | None |
| United Kingdom | No price published | GARDENA UK page for the smart SILENO free 1200 m2 (opens in a new tab) |
| European Union | €1,499.99 list price as of October 2026 | GARDENA EU page for the smart SILENO free 1200 m2 (opens in a new tab) |
Botsize may earn a commission when you buy through links on this page. It never changes the math or the ranking.
Prices are the maker's own, in each market's currency and never converted. Each is a snapshot from the month shown, and sales change them.
Alternatives
One size down from GARDENA
GARDENA smart SILENO life 1000 m2
Rated for lawns up to 1,000 m² (10,760 sq ft), slopes up to 35%. Boundary wire.
Sources
Every number on this page comes from these pages, read on the date shown. Botsize reads specifications and does not test mowers.