Philips SH91/50 Shaver Head for Series 9000 and Prestige: what it is

The Philips SH91/50 is a replacement shaver head for Philips Series 9000 and Prestige S9000 electric shavers. It is a spare part rather than a complete shaver: it fits onto a compatible handle and replaces the cutting heads that have worn over time. Here is what that means and how to make sure you choose the right one.

What a replacement head is for

An electric shaver cuts hair with moving blades beneath a thin guard. With regular use, the blades and guards wear, and the cutting action usually becomes less efficient. Manufacturers therefore recommend replacing the heads at intervals, typically about every year or two depending on how often you shave. Philips describes the SH91/50 as a way to "get back to 100% performance" by replacing the shaver heads.

What the listing says about the design

Philips lists the head as compatible with the S9000 range and describes "advanced precision for a closer shave". It is described as using precision blades. The listing doesn't give technical specifications such as the number of cutting elements or the materials, so for those details the manual or Philips' product information for your shaver is the place to look.

The listing also says you can "reset your shaver very simply" by fitting the new heads. In practice, replacing a head on this kind of shaver generally means removing the old head unit from the handle and pressing or clicking the new one into place. Check the instructions for your exact model.

Fit and compatibility

This is the most important point. Philips shavers come in many series and generations, and heads are not interchangeable between all of them. The SH91/50 is listed for the Series 9000 and Prestige S9000. Before buying, look at the model number printed on your shaver (usually on the handle or the back) and compare it with Philips' compatibility information for the SH91/50.

Looking after the new head

General care helps heads last longer:

• Rinse the head after shaving if your shaver is rated for wet use, and let it dry.
• Clean it regularly with the brush supplied with the shaver.
• Follow Philips' guidance on lubrication or cleaning products for your model.
• Keep it with the protective cap on.

Size and packaging

The listing gives dimensions of 13.6 x 7.9 x 3.9 in, with a weight of about 0.1 lb (roughly 45 g). Those figures probably describe the package, so don't treat them as the size of the head itself.

Who it suits

It suits owners of a compatible Series 9000 or Prestige S9000 shaver whose current head has worn, and who would rather refresh the shaver than replace the whole unit.

What to check before you buy

• Model match: confirm your shaver's model number is covered by the SH91/50.
• Which part you need: make sure you want the whole head unit, not a separate foil or blade.
• Age of your current head: if it has been in use for a year or two, a replacement may be due.
• Fitting: read the instructions to see how the head attaches to your handle.
• Cleaning routine: check the manual for the correct cleaning and storage steps.

The short version

• A Philips replacement shaver head, model SH91/50.
• Listed as compatible with Series 9000 and Prestige S9000 shavers.
• Described as offering advanced precision for a closer shave.
• Replacing worn heads is how the shaver is brought back to its original performance, according to Philips.
• Always confirm your own shaver's model number before ordering.

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