There are several elements to compare from different hair clippers, mainly these below 6 points:
1. Material of blade
2. Noise Lever
3. Motor
4. Waterproof
5. Battery
6. Material of body
1. Material of blade
1.1 Ceramic: Ceramic is smooth and with more hardness, so when it applied to a hair clipper, it would be more wear-resistant, quieter, and less heat-conducting during working. On the other hand, they are more brittle and hard to replace.
1.2 Stainless Steel: You may hear about words like “China420J2”、” Japan SK4、SK3”、” German 440C”, they are all stainless steel material. Stainless Steel, compared to ceramic blades, they are more durable and easier to sharpen and sanitize. So they are easier to maintain. Also, they are available in more sizes so fit the most hair clippers.
2. Noise
Of course, the noise is the smaller the better, but that depends on the motor, blades, and the whole set-up performance. Also depending on the working status. EU standard is 70dB.
3. Motor Speed
There are mainly 4000r/m, 5000r/m, 6000r/m in the market. Of course, the number is larger, the speed would be faster, they will be more smooth in cutting. But this will be depending on a different person’s hair. For example, children’s hair is soft, so normally 4000r/m is quite enough, for hard and strong hair, the number will be the larger the better.
4. Waterproof
You must hear the advertisement for “All over washable“，there below are the levels:
4.1 Blade washable
You have to take off the blade and wash the blade, not so convenient
4.2 All over washable
It’s more convenient as you can immerge the whole hair clipper into the water and wash it at will.
4.3 IPX7/8/9
IPX7 -Free immerge: Water will not get in if immerged into water under specified condition
IPX8-In water: Longtime immerging into the water with certain pressure
IPX9- Moisture-proof: No influence in performance even in the relative humidity of 90%
Of course, the higher the standard is, then the cost will be higher
5. Battery
Nowadays we are using the Lithium battery to replace the ordinary Lead-acid battery as Lithium battery has no memory in charge and discharge, fast charge, and slow discharge so that we can “Flash Charge”. Furthermore, Lithium batteries will be smaller in size and weight, more endurance, and more friendly for the environment.
6. Material of body
Mainly there is metal and plastic or rubber/oil painting finish, it will influence the price, out looking and feeling of handling, but almost no influence for performance.