Panasonic Cordless Men’s Precision Dial Beard Trimmer

Last updated: June 1, 2023


The unique angled blades on this beard trimmer are perfect for trimming facial hair. The grip resists slipping and remains comfortable throughout your shave while a built-in water drain makes it easy to clean. You can also choose from 19 different settings using a dial.

We looked at the top Beard Trimmers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Beard Trimmer you should buy.

Product Details

Key Takeaway: A trimmer with uniquely angled blades and a comfortable grip.

In our analysis of 75 expert reviews, the Panasonic Cordless Precision Dial Beard Trimmer placed 9th when we looked at the top 21 products in the category. For the full ranking, see below.

From The Manufacturer

The powerful, versatile Panasonic Beard Trimmer ER-GB40-S for men can easily be used cordless anytime, anywhere or plugged it into an AC outlet for longer use. The durable, super-sharp blades in this powerful beard and mustache trimmer system are precision-honed to an acute 45° angle to create the optimal cutting edge for quick, efficient maintenance of beards, hair and mustaches. A quick-adjust trimmer dial is located on the sure-grip, ergonomic men’s cordless trimmer handle to provide 19 precision settings — from 1mm to 10mm — for the exact length you want for smooth, precise trimming, sculpting, detailing and cutting. This Panasonic hair and beard trimmer for men is also wet/dry convenient. When you’re in a hurry, the ER-GB40-S waterproof beard trimmer delivers a quick, even dry trim over the sink or on-the-go. And, because this Panasonic trimmer is fully immersible in water, it also performs just as effectively when used in the shower. Clean up is quick and simple. The Panasonic ER-GB40 beard and mustache trimmer cleans under running water with easy-open water drain for thorough cleansing and maintenance, and a handy cleaning brush is included for on-the-spot hair clipper blade cleaning. The included, high-efficiency AC charging stand keeps your mustache and beard battery charged and ready. An indicator lamp glows red while the Panasonic ER-GB40-S trimmer is charging. And for grooming away from home, both the compact beard and mustache trimmer and stand fit easily into any men’s grooming kit, bag or luggage.

Expert Reviews


What reviewers liked

Thoughtful engineering: rubberized,non slip body and built in water drain.
The blades in the Panasonic trimmer are fast action. The precision blades are at a 45 degree angle, to enable a superior trim. This is the best angle for trimming beard, hair, and mustache.
The trimmer’s sharp stainless steel blades are angled at 45 degrees to create the optimal cutting edge. It’s fast and powerful, and you’ll get quick, efficient facial hair trimming (and head hair). The trimmer comes with 3-blades and cuts cleanly through even the thickest and most dense hair.
Quick-adjust dial for easily changing the trimming length.
It comes with rubberized grip for maximum comfort and gives firm control to trim/cut or shave detailed hairs in the ears or nose.
The length adjusting feature of this top beard trimmer of 2018 allows you to tweak it internally which makes the Panasonic ER-BG40-S an easily handled, no-fuss beard trimmer. You only need to adjust the length on it.

What reviewers didn't like

Requires extensive maintenance and a longer charge time.
Charge status is not displayed.
Not as easy to grip for men with larger hands
Takes long to charge completely.
The Ni-MH battery long lasts for about 50 minutes after every charge.
You need to be careful when it comes to the maintenance of this blade. The trimmer needs to be oiled a little more than you might think. If you somehow miss to oil it up frequently, there are definitely going to be some unwanted issues with uneven hair cutting and hair pulling.
View our Beard Trimmer buying guide for in-depth advice and recommendations.

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