The Braun Series 3 is Braun’s entry-level line of foil shavers, and the ProSkin 3040s is the model most buyers land on: a compact, fully waterproof electric razor with two foils, a centre trimmer and a pop-up precision trimmer. This review is for someone weighing a first electric shaver, or replacing an old one without spending much, and it covers what the 3040s does well and where a different machine is the better call. If the closest possible shave or a self-cleaning dock matters more than price, look one series up instead.

What the Braun Series 3 ProSkin 3040s is

The 3040s sits in Braun’s Series 3 range, built in Germany and sold in a blue finish with an integrated precision trimmer. The details that matter day to day:

  • Three cutting elements. Two foil shaving elements with a centre trimmer between them, the same foil-and-trimmer layout Braun uses across its foil shavers.
  • Flexible blades. The head flexes to follow the curve of the jaw and neck instead of holding one flat angle.
  • Efficiency MicroComb. A comb in the centre trimmer feeds more hair into the cutting elements, which Braun says cuts the number of passes; its comparison is against the earlier Series 3.
  • Integrated precision trimmer. A pop-up trimmer for sideburns, a moustache edge, or the line under the nose.
  • Wet and dry. Fully waterproof, so you can shave dry or with foam or gel and rinse the head under the tap.
  • Battery. Braun rates it at 45 minutes of cordless shaving, with a 5-minute quick charge for a single shave.

How a foil shaver like this actually shaves

A foil shaver cuts differently from a rotary. The foil is a thin, perforated screen, and the cutter moves behind it, trapping hair against the holes as the head passes over your skin. That is why a foil shaver suits short, overlapping strokes in a straight line rather than the circular motion a rotary wants; our guide to how foil shavers work explains the mechanism.

On the 3040s the two foils do most of the cutting while the centre trimmer deals with longer hairs, so stubble is less likely to be pushed ahead of the head. The flexible blades help on the jaw and neck, where a rigid head tends to miss. Used dry it is fast; used wet with gel it tends to feel gentler, which is worth knowing if your skin is easily irritated. Either way you still steer the shave: light pressure and short strokes beat pressing down.

Battery, charging and upkeep

Braun rates the 3040s at 45 minutes of shaving per charge, with a 5-minute quick charge enough for one shave. In practice that is a week or more of daily use between full charges, depending on how long you take. The part that wears is the head: Braun’s guidance is a replacement shaving head roughly every 18 months, and the heads are easy to find. Our guide to extending the life of a shaver head covers what shortens it. Rinse the head after each use and leave it open to dry, as in our guide to cleaning an electric razor, and replace the head once the shave starts pulling rather than cutting.

Who it suits — and who should skip it

  • Suits someone buying a first electric shaver for regular face shaving, who wants wet and dry flexibility, easy cleaning and a low entry price.
  • Suits a small bathroom or a travel bag: it is compact, waterproof and needs only a short charge.
  • May suit you less if the closest shave Braun sells is the goal. The higher Series 5, 7 and 9 add more cutting elements and closer-cutting heads.
  • May suit you less if you want a cleaning and charging station; the 3040s is the version without one.
  • May suit you less if you routinely shave several days of growth. Trimming down first, or picking a shaver with a stronger long-hair trimmer, saves time.

Within the Series 3 range, the cheaper 310s has a shorter battery and no trimmer, so the 3040s is the one to pick if you want both.

How it compares

Set against a cartridge razor, an electric shaver trades some closeness for speed, no shaving cream and far fewer nicks, which is why it often wins for a daily routine. Set against a rotary, the foil design tends to suit straight strokes and sensitive skin, while a rotary is usually easier on curved areas and longer stubble; our foil vs rotary comparison goes through the trade-off.

If you are still deciding between models, our guide to the best electric razors for men walks through foil versus rotary, the features worth paying for and where the price steps up.

The bottom line

The Braun Series 3 ProSkin 3040s is a solid entry-level foil shaver. It is waterproof and quick to rinse, charges fast, and includes the precision trimmer the cheaper Series 3 models leave out. It is not the closest shaver Braun makes, and it has no cleaning dock, but for a first electric shaver or a budget replacement used on regular daily growth, it does the job without fuss. If closeness or a self-cleaning station is the priority, step up a series instead.