Robot lawn mower Smart Gardena Sileno City 400 — robotic mower, compact model for small urban lawns

Robot lawn mower Smart Gardena Sileno City 400 is a compact autonomous mower designed for small urban lawns. It performs scheduled automated cutting within predefined boundaries, negotiates narrow passages and turns, and keeps grass at the selected height. The unit is intended for regular maintenance of small gardens, courtyards and city lawns where quiet, hands-free mowing is required. The design focuses on compact dimensions and reliable perimeter-based navigation to deliver consistent results on areas with simple or slightly complex layouts.

Advantages

The Smart Gardena Sileno City 400 provides quiet operation with automated scheduling, reducing manual work and noise disturbance. Its compact footprint allows access to tight spaces and small lawn patches while adaptive cutting maintains an even finish. User-adjustable cutting height and simple boundary setup make this model suitable for straightforward installation and routine use. Built-in safety features stop the blades on lift or tilt to reduce risk during handling or when encountering obstacles.

Suitable for

• Small urban lawns and courtyard gardens up to the model’s recommended area
• Homes requiring low-noise, scheduled lawn maintenance
• Lawns with narrow passages and compact layouts
• Owners who prefer hands-free, regular grass trimming

Key specifications

• Type: autonomous robotic lawn mower with perimeter navigation
• Suitable area: compact urban lawns and small garden plots
• Cutting system: rotary blades designed for regular maintenance
• Adjustable cutting height: multiple height settings to control grass length
• Noise level: designed for low-noise operation suitable for residential areas
• Mobility: compact dimensions for access to narrow passages and tight corners
• Safety: automatic blade stop on lift/tilt and obstacle detection
• Automation: programmable scheduling for unattended mowing

How to use

Install the perimeter boundary wire according to the lawn layout and place the charging base on a level surface with access to a power outlet. Charge the mower fully, set the desired cutting height and program the weekly schedule using the on-device controls or compatible app if available. During operation the mower will follow the defined boundaries, cut grass to the selected height and return to the charging base when needed. Regularly remove accumulated grass debris from the cutting deck and check the blades for wear to maintain cutting performance.

Usage recommendations

For best results, clear the lawn of large debris and objects before first use, set boundary wire to create clear navigation paths, and perform periodic blade inspection and replacement as needed. Mow more frequently during active growth periods to maintain an even finish and reduce the load on the mower.