Bosch Advanced Rotak 650 Lawnmower UK Review 

By  Enda

Thanks for taking your time to read our review on the Bosch Advanced Rotak 650 electric lawnmower. Bosch do basic rotary models that include the 32R, 34R and 36R but this model is a more advanced design.

This 650 model is one of the Bosch Rotak Advanced range. It is popular with over 300 online reviews and is considered to be one of the quietest mowers on the UK market. It has one of the most powerful motors as it uses a 1700 watt motor which does cut through the toughest of grasses. It also has a 41 cm cutting width so a good choice for medium to larger sized lawns (up to 650 square metres in size)

The cutting height is 20-80 mm, and uses a 7 step simple to adjust system for the various heights. It also has a large 50 litre capacity grass collection box with carrying handle. Below we review this model in much more detail.

How Online Buyers Rate this Model?

Buyer Satisfaction
  • Overall online buyers gave this an average buyer satisfaction of 88%
  • 67% of all those buyers gave this a full 5 star review
  • 6% of all buyers gave this mower a poor review

These ratings are based on over 750 online reviews from various websites. This mower so far gets mainly good reviews.

What Buyers Say - Pros & Cons

We know how buyers rated this mower, and now we have summarised what those buyers had to say about their purchase. Below we have listed what buyers had to say in the form of a pros and cons table.


  • Buyers say this mower is the quietest mower they have ever used
  • Quite a few buyers were extremely impressed with the sheer cutting power of this mower, especially on longer grass
  • Buyers liked the 2 year guarantee which can be extended to 3 years once you register your mower
  • Most buyers liked the fact that this was very simple to assemble out of the box
  • Most buyers said the power in this helps it glide along, and the wider cutting width means they get the job done faster.


  • A few buyers said this mower is just poorly designed when compared to earlier Bosch mowers
  • Some buyers said this mower is too heavy to easily move around especially if pushing uphill

This is a reliable mower and with a 41 cm cutting width. Many buyers also liked the fact that you can use a single one click height of cut adjustment from 20-80 mm to suit different lawn conditions. This method is much easier than most other mowers.

650 Specification

Some buyers do like to know the full specification and technical details, so we have shown those below.

Bosch AdvancedRotak 650 Electric Rotary Lawnmower review
  • Measures 76 x 49 x 45 cm
  • Weighs 16 kg
  • 1700 watt motor
  • Electric start
  • Electric rotary mower
  • Can cut tall grass thanks to a hardened steel blade
  • Has a 50 litre foldable grass box that folds flat for easy storage and prevents overfilling via fill indicator
  • Suitable for gardens up to 650 square metres
  • Height of cut 20 – 80 mm adjustable using a one push button click system (7 settings)
  • Ergoflex handles for a comfortable and healthy working position - the handle can be adjusted in height into 4 different poistions
  • Has a leaf collect blade that cuts grass perfectly or collects leaves for easy disposal
  • Has a back roller ideal for creating striped lawns
  • Cable length is the standard 10 metres so it is likely it will need to be plugged into an extension lead for longer gardens.

This Mower Video Review

Below you will find a very good overview of this mower.

Key Features

With any lawnmower, there are typically a number of key features, and we have shown those below.

Cutting Width

This is the width of grass that a mower can cut with one single pass. The width primarily determines the speed at which you can cut your grass at. The larger the width the quicker you can cut your grass, as you will have to do fewer passes. This model has one of the highest cutting widths at 41 cms, which is ideal for small to larger sized lawns.

Cutting Height

Most mowers will have a range of cutting heights. This 650 model has an integrated system that makes changing the cutting height of your mower easier than ever. A simple one button operation changes the height of cut from 25 to 80 mm.  It also has the Bosch ErgoSlide system that allows you to manoeuvre this mower with ease and achieve your task quickly, while being kinder to your back.

Quiet and Powerful

The Bosch AdvancedRotak 650 Lawn mower has a feature known as "ProSilence." This reduces noise by up to 75 percent, while clever product features make lawn-mowing easier and more effortless than ever before. The smooth sound profile of the Bosch ProSilence reduces the sound level by up to 75 percent to 89 dB, while delivering an excellent finish.

The Bosch Brand (Gardening)

Bosch are of course a very well known tool brand. Aside from their high quality tools, they also make a wide range of gardening tools. These range from lawnmowers, lawn rakers, verticutters, trimmers, hedge cutters, chainsaws, leaf blowers shredders and multi-tool systems.

They are a German brand and their garden products are very popular with many UK gardeners. They have 40 locations spread across the UK with over 5,000 employees. In the UK they generate annual revenues of around £3.5 Billion, with the UK being their second largest market.

Bosch Advanced Rotary Mowers - 550 vs 650 vs 750 models

In this newer electric rotary range Bosch make three models, called the Rotak 550, Rotak 650 and the Rotak 750 which is what we are reviewing here. Just below we explain the key differences between those models. We have also provided links to reviews of those models.

Bosch Rotak 550

37 cm cutting width

Around £230

1300 watt motor

40 litre grass box

Height cut 20-70 mm

Bosch Rotak 650

41 cm cutting width

Around £250

1700 watt motor

50 litre grass box

Height cut 25- 80 mm

Bosch Rotak 750

45 cm cutting width

Around £300

1700 watt motor

50 litre grass box

Height cut 25-80 mm

Our Verdict on the Advanced Rotak 650 Model?

The Bosch ErgoFlex handles reduce strain on the arms and back by providing a perfect mowing posture.  It also has multiple adjustment switches that allow for individual customisation and optimal comfort.

The key difference between this more expensive model and the basic models, is that this one is designed for anyone who wants an easier mower to use. The wider cutting width, the ergonomic design and the leaf collecting blade and grass basket are all designed to make mowing easier and faster.

The design is all about reducing the noise level and making this mower easier to store when not in use.

This mower is good for use as adjusting the cutting height is easy. The grass box and handles can be quickly folded up for easy storage.

Check Amazon UK - Price when reviewed £379.64

If this is not the mower for you, then check out our article on all of the Bosch lawnmower options by clicking here. If you want to find out what other mower options are available, then we strongly recommend reading our UK lawnmower guide.

This Bosch Advanced Rotak 650 model is about £150 more expensive than the standard 32R, 34R and 36R models. It is slightly easier to use and it is easier to store. The decision really comes down to whether you think £150 extra is worth it to get those added benefits.


I am someone who enjoys a little gardening. Now I am not someone who spend hours in the garden, but I do like both my front and back gardens to look really nice. Well kept lawns, neatly trimmed hedges, and borders filled with plants, make a huge difference, to how your property looks.

Enda McLarnon

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