The shorter warranty suggests the MG3750 may not be as reliable as the MG7750, which has a five-year warranty. Given our long-term experience with less-expensive trimmers, we would expect to see signs of power fade, slower motor speeds, or shorter battery life after a while. For our latest round of testing, we compared our established picks with all of the new models we could get our beards on.
Like our top pick, the Aqua Blade doubles as a hair and body trimmer. The guide combs are a little flimsier compared with those of the Philips models we picked, but they get the job done. The trimmer-head blades require a couple of drops of oil every month (the Philips MG7750 and MG3750 do not), but it’s easy to do, and Wahl conveniently supplies a small bottle of oil. The Philips Norelco MG7750 has almost everything we could ask for in a beard trimmer. Its motor offers just the right amount of power—enough to make quick work of thick hair, but not so much that a slight slip will remove a large section of a beard or mustache.
If culture wars were to ever erupt in the beard-trimming sphere, the sharpness of beard lines would be one of the key debates. Some like them blended and subtle, some like them so sharp and neat you could get a paper cut from them. Wherever you stand on this crucial battleground, the King C Gillette Style Master will deliver it. I have to say, it was perfection itself for detailing and sharpening up the edges. I felt confident to attempt the exact beard lines I wanted, using different blades and positions. Some clearance product and price points may not be available at all locations.
These tools are suitable for practically any length of beard, from stubble to 6 inches or more. If you’re looking for an electric razor, we have a guide for that. If you’re shopping for hair clippers, we have a guide for those, too. And if you’re more old school and prefer a manual razor, we’ve got you covered.
Danusia Wnek conducted the Lab test on electric shavers and provided lots of information about the testing and how electric razors work. She has been testing skincare products including but not limited to eye creams, serums, night creams, neck creams, facial oils and moisturizing creams for over seven years at the Good Housekeeping Institute. She has experience in using specialized skin evaluation lab equipment to gauge changes in skin moisturization, firmness and facial features like wrinkles and texture before and after product use. She also regularly polls our consumer panel on their purchasing and product use habits as well as weighs in on the benefits of skincare ingredients like vitamin C, retinol and niacinamide. It’s an otherwise similar model, with comparable power and the same extensive selection of accessories for beard, hair, and body trimming.
That size refers to the length of the remaining hair after getting clipped. The included charger takes between 100 and 240 volts, so you will be able to use it abroad as well (it may require a simple adapter as it comes with a USA plug). Charging the battery completely from 0 to 100% takes approximately 3 hours. I haven’t really used it much except for storing the guards I’m not using regularly. The placement of the power button, along with the fact it takes little pressure to operate makes it more likely to be pressed by accident.
In fact, over the course of these two years since I bought the Norelco 7000, I’ve only charged it a few times. According to the manufacturer, you should be getting at least 5 hours of cordless use. At least on paper, the battery life is one of the main strengths of the Philips Norelco Multigroom 7000. It’s also very easy and straightforward to change the various cutting attachments. The use of aluminum is surprising considering the groomer’s reasonable price.
We’ve found the cordless Philips Norelco MG7750 is the trimmer best suited to getting most beards looking great. It’s reasonably priced, has good battery life, it’s easy to use and you can trim, shape and maintain your beard. A beard trimmer with an integrated adjustable guard is more practical if you only want a beard trimmer. Danusia (she/her) is a senior chemist in the Beauty, Health philips shaver and Sustainability Lab at the Good Housekeeping Institute where she evaluates haircare, skincare, cosmetics and beauty tools. In pharmaceutical sciences with concentration in cosmetic science from the University of Cincinnati. Danusia has over 10 years of experience in the personal care industry including formulation, product development, claim evaluation and efficacy testing.