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Gardena Sileno City
Gardena

Gardena Sileno City

83/ 100€1,000

Quiet boundary-wire robotic mower for small urban lawns, handling narrow passages from 60 cm and slopes up to 35%, with frost and rain sensors.

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Best for:Hands-free lawnsSlopesLarge yardsQuiet mowing
Coverage
500 m²
Max slope
35 %
Cut height
20-50 mm
Runtime
65 min
83/100
Excellent
Our verdict

Excellent robot mower (83/100). It stands out most for quietness (88/100). Highlight: very quiet. Main trade-off: small area.

Score breakdown

Rated across 6 criteria

How we score →
Navigation66/100
Coverage60/100
Slope handling76/100
Run time60/100
Quietness88/100
Value90/100

Specifications

Coverage
500 m²
Max slope
35 %
Cut height
20-50 mm
Runtime
65 min
Navigation
Boundary wire
Noise
57 dB

Pros

  • Very quiet
  • Great for small lawns
  • Weatherproof

Cons

  • Small area
  • Boundary wire

Owner reviews

CR
Compare Robots
Editorial review
★★★★4.2/5

A top-tier robot mower we recommend without hesitation

In our independent assessment, the Gardena Sileno City earns 83/100 — an excellent robot mower.

Its strongest area is quietness (88/100), followed by slope handling (76/100). In practice, very quiet.

The main caveat is run time, where it scores 60/100. Specifically, small area.

At €659, it sits below the typical price for the category — strong value. For most buyers in this category, it's one of the best choices you can make.

Independent assessment·Updated 2026-06-11·How we score →

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Frequently asked questions

Do I need to install a boundary wire?

Older mowers use a perimeter wire; newer wire-free models use RTK-GPS and/or vision to map the lawn — check the navigation spec above.

Can it handle slopes?

Yes, up to the max-slope rating shown. All-wheel-drive models climb the steepest inclines; standard models handle gentler grades.

Is it safe around kids and pets?

Robot mowers have lift/tilt sensors and bumper stops that halt the blades instantly, plus PIN locks and theft alarms.

How big a lawn can it mow?

See the coverage spec. Most models cover their rated area on a single charge, then return to the dock to recharge and resume.

Lowest price in 30 days
€659
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