Husqvarna Automower® Aspire™ R4 Robotic Mower (lawns <400m²)

The Husqvarna Aspire™ R4 is a compact robotic mower which has been optimised to efficiently managed lawns up to 400m² and to produce a perfectly cut lawn with effortless ownership.

Features of the R4 include systematic passage mowing for precisely narrow passages, slope handling capability of up to 25°, frost guard, a weather time, Automower® Connect @ Home for carefree operation (providing total owner control within a 30m range via a smartphone) and Smart Home Integration (which allows basic mower function voice control via Amazon Alexa and Google Home).

It is also equipped with FOTA (automatic firmware updates), front sensors, lift & tilt sensors, an anti-theft alarm and can easily be cleaned with a garden hose when for added convenience.

Forming part of the Aspire™, the R4 is supplied with storage hook as with all Aspire™ products, which enable it to be easily wall-mounted for storage over the winter season.

Automower® Aspire™ R4 - 400m² working area. 45m² per hour. Max incline 25%/22°. Cutting height 20-45mm.

Learn how to install Automower® here.

Max working area 400m² | 25%/22° slope capability | 20-45mm cutting height | Weatherproof | Smart Home Integration | Automower® Connect @ Home | Weather timer | Systematic passage mowing | Frost guard | Anti-theft alarm | Hose washable | Lift & tilt sensors | Front Sensor |

Need to calculate your lawn size? Click here for the Husqvarna Lawn Calculator to size yours now.

Husqvarna Dealer | Red Band UK

Installation kit required. Sold as optional extra.

£848.40 £707.00
Out of stock
RRP from £928.80 Inc. VAT


MPN 970 56 85-03
Maximum Area Capacity (+/-20%) 400m² 
Area Capacity per hour 45m²
Cutting Width/Height 16cm/2-4.5cm (20-45mm)
Battery Type Li-Ion
Battery Capacity 18V/2.0Ah
Typical Mow Time (on one charge) 70min
Typical Charging Time 75min
Maximum Daily Operating Time 9 hours
Mean Energy Consumption (at max use) 3kWh/month
Noise Level dB(A) (perceived) 59dB(A)
Product Overall Dimension (L x W x H) 55 x 33 22cm
Weight 5.9kg
Search System Singlesearch
Guide Wires 1
Minimum Passage 60cm
Area Complexity ●○○○○
Maximum Slope (inside installation) 25%
Maximum Slope (by boundary wire) 10%
Graphic Display None
Smart Home Intergration Yes
Firmware Update FOTA
Our Price (Exc.VAT)


Principal Functions

  • Unattended mowing
  • Mow little but efficiently and frequently
  • Good performance even in wet weather
  • Healthy maintained lawn
  • More free time


How Does It Work?

A boundary wire is installed area the perimeter of the lawn area and around obstacles in the garden to be avoided, such as flower beds, trees, play equipment etc. This wire can either be pegged onto the surface of the lawn or buried beneath the surface, using an edging tool, spade or similar.

A patented guide wire is also which helps the mower find its way back to its charging/docking station when it needs to recharge or has completed its scheduled cutting cycle. This reduces the amount of time the mower spends searching to find its way back to its docking station, especially in more complex gardens.

The mower works within the boundaries you have established and defined to a schedule and time(s) determined by you, that best suit you. When mower needs re-energising during its cutting cycle, it simply makes its own and unassisted way back to its docking station, charges itself and once sufficiently powered up returns to continue cutting until it requires recharging again or its scheduled cutting cycle complete.

You decide when what days and what times you would like your Automower® to work to suit you, adjust the timer to whatever schedule you choose in the settings and then sit back, and let your mower do the rest! If you would like your mowing done when you get back from work, during the night whilst you sleep, on alternate days or only during the week whilst you are out, you can programme Automower® to do just that. It really is that easy and convenient. Don’t forget Automower® will even cut your grass in the wet when you simply would not venture out, or better still whilst you watch the football, go shopping or are away on holiday. A great way to save you time and money.

Automower® works on a unique and random cutting pattern, much like the same principle as sheep grazing do. This random, free movement pattern prevents track marks being caused by the mower repeatedly traversing in the same direction, along the same path, which is kinder to your lawn. It moves in a random pattern only making small cuts of fine clippings at a time. This produces not only a clean and even mow but also nourishes your lawn as it cuts and limits visible residue/grass clippings. The quiet, near silent operation means that you won’t disturb anyone around you whilst your mower cuts, unlike petrol powered machines.

Unlike conventional pedestrian and ride-on type mowers, Automower® uses 3 small, strong, carbon steel razor-sharp micro blades to cut grass, by effectively surgically manicuring your lawn. The blades are retractable and suspended beneath the body of the machine on a robust, rotating cutting disc. As a result the grass is cut more gently, more sympathetically than by the often blunt trauma grass is subjected to when cut with larger, considerably less sharp blades on conventional mowers. The grass is also cut gently from all directions and nourished by the micro-clippings produced being returned to the soil as mulch and a natural fertiliser, helping it to grow strong, fuller and healthier. The cutting method and principle Automower® uses to cut grass is also efficient in operation, consumes extremely low levels of energy and operate at a fraction of the cost of conventional lawnmowers.


Automatic charging

When Automower® needs more power, it simply returns itself back to its docking/charging station and reenergises itself. Once fully charged and ready to go, it will simply return itself back to work until its scheduled cutting cycle is complete. 


Automower® is designed to work you and your lifestyle. You decide when you want it to mow and when you do not, and if you change your mind, it is quick, simple and easy to change your programmed schedule.


Automower® is designed to be used outside, unattended and around the clock, regardless of the weather conditions, even the wet. In the winter months and extreme temperatures it would be advised to keep your mower inside a garage or shed, whether its compact size and weight allows it to be easily and conveniently stored or even hung.

Automower® Connect @ Home

This Bluetooth® controlled solution provides full control Automower® control within a 30m operating range; you can easily send start, stop and park commands, as well and adjust other personal settings of your choosing to suit you. Alternatively you can opt to upgrade the controlling module installed at the time of purchase to Automower® Connect which allows you even greater control anytime, anywhere (subject to available connectivity).

Weather timer

This ingenious function adjusts the working time of Automower® to suit the lawn’s rate of growth, thereby optimising mowing time during periods of increased grass growth. In sunnier and drier weather or late in the season, Automower® will spend less time mowing and in doing so, decrease lawn and mower wear.

Systematic passage mowing

In order to deliver excellent cutting results across the entirety of the lawn, Automower® can be set to automatically switch mowing pattern from random mode to systematic mode which senses and navigates the mower through narrow spaces, such as between flower beds etc, varying the route to avoid unpleasant track marks.

Frost guard

This function automatically interrupts the mowing schedule in frosty conditions for the betterment of the lawn.

Hose washable

Keeping your Automower® clean and presentable could not be easier. The exterior and underside of your Automower® can be quickly and conveniently washed down with a garden hose.

Lift & tilt sensors

If Automower® is lifted off the ground or tips over, the cutting action of the mower automatically shuts off and stops. The rotating Automower® blades are also purposely positioned to sit within the underside and shielded part of the mower and far from the outer edge of the mower body for additional safety. If Automower® meets an obstacle whilst mowing the lawn, like a garden pot or ornament for example, it will simply and gently stop, redirect itself and travel in a different direction.

Front sensor

A sensor mounted to the front of the mower detects in advance upcoming obstacles in its intended direction of travel and takes preventive measures to avoid collision.

Quiet in operation/Environmentally friendly

Thanks to the combination of its li-ion battery power and unique cutting system, Automower® is very quiet and discreet in operation reducing noise-pollution. Your neighbours often will not even be aware that Automower® is at work; day, night, early or late. Automower® is also environmentally friendly as it produces no CO2 emissions and consumes extremely low levels of energy.

Manages slopes up to 25%/22o

Thanks to the compact size, lightweight, chassis design and large coarse-tread drive wheels for optimised traction and balance even on slippery surfaces, the R4 has the ability to work on slopes up to 25%/22o and on undulating, uneven ground too.