Philips Norelco QT4021 Stubble Trimmer Review

by Chris Glasner

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The Philips Norelco QT4021 Stubble Trimmer is a great little trimmer, but it does have it’s limitations. First of all, to clear things up, it’s not really just a ‘stubble trimmer’, it does trim regular beards as well. This well designed trimmer has 9 length settings with 1 being the lowest at 1mm, and that is the only setting that could be classed as short enough for stubble.

But, with all that a side, many people love this thing! The number 1 setting for my stubble, but also use higher settings for my sideburns and also body hair. So it definitely has its all round uses, I just don’t think it should be specifically called a “stubble” trimmer. You can easily trim, shape and maintain beards of length in the range of 1-18 mm.

The unit has a good, quality feel to it and is very light and maneuverable. It’s got a nice rubberized grip and generally looks pretty cool too. The blades are nice and sharp and are self sharpening so they remain sharp and also don’t require any oil for lubrication.

The favorite thing about the device for most folks has to be the fact that it’s a completely self contained unit that can be adjusted easily, as needed. It doesn’t come with a load of different blades or accessories that only take up space. It’s an all-in-one, compact device. The charger comes with an indicator to let you know once the unit has been charged and a cleaning brush as an add on accessory.

The comb design is great: it doesn’t allow any contact between the stubble cutter and the human skin. If you take off the stubble comb, the Philips Norelco QT4021 Stubble Trimmer can also be used as a precision detailer to help you get the perfect beard or moustache line.

The removable comb also makes the trimmer extremely easy to clean. Users usually just blow on it after use, and sometimes give it a quick brush over with the little brush provided. All in all, this thing is just easy to use.

The only real downside is something that most beard trimmers suffer from (except maybe the Wahl Lithium Ion): the rechargeable battery life could certainly be improved. Many a QT4021 trimmers started out all right when people first bought it, lasting a good couple of weeks between each charge, however it now requires a recharge after every 3 or 4 uses. It’s not a massive issue and it can still be used when it’s plugged in, but just take note of that if you’re looking to travel with this stubble trimmer and won’t have access to electricity.

So here’s a summary for the QT4021:


  • It is a self contained unit (no external accessories)
  • Very light-weight and portable
  • Sharp and maintenance-free blades
  • Good, rubberized grip
  • Easy to clean
  • Great for travelling
  • Very affordable cost


  • Only the shortest setting is suitable for stubble
  • Battery life could certainly be improved

So, overall, most reviewers think this is a great little device and definitely worth the price, despite a couple of minor flaws. People love the trim it gives, the ease of use and the general design of the device, so would definitely recommend it. Most customers would consider buying this model again or at least a similar design when this one finally dies, so give this a shot if you are looking for a reliable stubble/beard trimmer.

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