The number of electric shaver heads directly affects the shaving efficiency. The more heads, the better the shaving effect. Similarly, the more heads, the higher the price of the electric shaver, and the higher the maintenance cost in the later period.
Single head: simple structure and cheap price, but it cannot completely shave the beard for users with thick beards.
Double heads: The beard shaving effect is better than double single heads, but it is not easy to shave small stubble or the curve angle of the chin.
Three-blade head: ergonomically designed, can achieve the effect of completely removing the dead corner of the chin, and the price is moderate.
Four heads: The shaving effect is better, it can completely shave every beard, and the price is more expensive.
Five-blade head: Better shaving effect, higher efficiency, can completely shave every beard at one time, expensive.
