Gardena Smart Sileno Max 800m²

Name: Gardena Smart Sileno Max 800m²
Brand: Gardena
SKU: 8096

Manufacturer: Gardena

The Gardena Smart Sileno Max 800m² is a robotic lawn mower designed for mid-to-large residential gardens, offering automated mowing with minimal user involvement. It connects via Bluetooth to a dedicated smartphone app, allowing remote control and scheduling directly from a mobile device. The unit handles slopes up to 30% and is rated to operate in rain, making it suited for varied outdoor conditions.

Covering a maximum lawn area of 960 m², the mower operates at a working capacity of 480 m²/h and produces 58 dB of audible noise, dropping to 50 dB in eco mode. Cutting height is adjustable between 25 mm and 45 mm across two settings, with a 22 cm cutting width per pass. The 18.5V removable battery charges in roughly 40 minutes, and the unit weighs 10,300 g with overall dimensions of 430 mm wide, 630 mm deep, and 260 mm tall. Features include a rain sensor, frost sensor, obstacle detection, auto-docking, mulching, and weather-adaptive operation, all managed without Alexa or Google Assistant compatibility.

Pros

The removable battery charges in roughly 40 minutes, minimizing downtime between mowing sessions
Covers up to 960 m² of lawn area while maintaining a working capacity of 480 m²/h
Equipped with rain, frost, and obstacle sensors that allow it to adjust behavior automatically without user input
Auto-docking and scheduling support mean the mower operates largely without manual involvement
Mulching capability returns clippings to the lawn surface during each pass
Can handle slopes of up to 30%, making it usable on gardens with uneven or inclined terrain

Cons

Only two cutting height settings are available, offering limited precision between the 25 mm and 45 mm range
No anti-theft features are included, leaving the unit without built-in protection against unauthorized removal
Lacks Wi-Fi connectivity, relying solely on Bluetooth which restricts the effective range of smartphone control
No display on the unit itself, requiring the smartphone app for any interaction or status checks
Not compatible with Alexa or Google Assistant, ruling out voice-based control or smart home integration

Who is this for?

This robotic mower is well suited to homeowners with medium-to-large gardens up to 960 m² who want a largely hands-off mowing routine. Its scheduling capability, auto-docking, and weather-adaptive sensors make it a practical fit for users who prefer set-and-forget operation without frequent manual adjustments. The ability to handle slopes up to 30% also makes it appropriate for gardens with moderately uneven or inclined terrain, while the mulching function suits those who want to return nutrients to the lawn without collecting clippings.

Who is this NOT for?

Users with gardens exceeding 960 m² will find the coverage capacity insufficient for their needs. Those who rely on smart home ecosystems built around Alexa or Google Assistant will encounter limitations, as neither platform is supported. The unit is also a poor fit for anyone who requires precise cutting height control, since only two height settings are available between 25 mm and 45 mm, leaving little room for fine-tuned lawn management. Additionally, users concerned about theft or operating in unsecured outdoor spaces may find the absence of any anti-theft features a notable drawback.

General info:

audible noise	58 dB
Has a dedicated smartphone app	✓
supports Wi-Fi	✕
audible noise (eco)	50 dB
Has Bluetooth	✓
cutting width	22 cm
Is electric	✓
height	260 mm
recommended area	800 m²
supports a remote smartphone	✓
lawn area coverage	960 m²
thickness	630 mm
volume	70434 cm³
weight	10300 g
width	430 mm

The Gardena Smart Sileno Max 800m² is an electric robotic lawn mower with a recommended coverage area of 800 m² and a maximum lawn size capacity of 960 m². It has a cutting width of 22 cm and weighs 10,300 g, with physical dimensions of 430 mm wide, 630 mm deep, and 260 mm tall. The unit includes Bluetooth connectivity and a dedicated smartphone app that enables remote control, though it does not support Wi-Fi. At 70,434 cm³ in total volume, it sits in a mid-sized footprint suitable for residential use.

Features:

has an obstacle sensor	✓
Has a rain sensor	✓
can be scheduled	✓
has anti-theft features	✕
auto docking	✓
works with Alexa	✕
compatible with Google Assistant	✕
Has a display	✕
has a frost sensor	✓
Has mulching feature	✓
adapts to weather conditions	✓
works in rain	✓

This robotic mower comes equipped with an obstacle sensor, a rain sensor, and a frost sensor, allowing it to adapt automatically to weather conditions and avoid hazards during operation. It can work in rain and supports scheduled mowing, while auto-docking ensures it returns to its base without manual intervention. A mulching feature is included, processing clippings back into the lawn. The unit does not have a display, lacks anti-theft features, and is not compatible with Alexa or Google Assistant.

Performance:

slope performance	30%
mowing time	50 m
number of cutting height settings	2
maximum cutting height	45 mm
minimum cutting height	25 mm
working area capacity	480 m²/h

The mower delivers a working area capacity of 480 m²/h and handles slopes of up to 30%, making it capable on uneven terrain. Cutting height can be set to either of two positions, ranging from a minimum of 25 mm to a maximum of 45 mm. The mowing time per session is rated at 50 m, and the unit covers its area with a cutting width that contributes to that overall throughput rate.

Power:

charge time	0.67 hours
has a removable battery	✓
voltage	18.5V
wattage	43.37W

The mower runs on an 18.5V system and draws 43.37W during operation. Its removable battery adds convenience for charging or replacement, and a full charge takes approximately 0.67 hours, meaning the unit is ready to resume mowing in well under an hour.

Final Verdict

The Gardena Smart Sileno Max 800m² is a capable robotic lawn mower that covers a broad range of residential garden sizes, backed by a suite of sensors and a fast-charging removable battery that keep it running with minimal owner input. Its automated weather-adaptive operation — combining rain, frost, and obstacle detection with scheduling and auto-docking — makes it a genuinely low-maintenance solution for gardens up to 960 m² with slopes of up to 30%. The absence of Wi-Fi, limited cutting height options, and no smart home voice integration do narrow its appeal for more demanding or tech-integrated setups, but for users seeking reliable, largely autonomous lawn care without constant manual oversight, this Gardena model delivers a well-rounded and practical package.

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