iO 시리즈 8 충전식 전동칫솔, 블랙 오닉스

Charging it takes about two hours and the battery’s lasted a full two weeks so far, which is way better than my old one that died every few days. The brush head’s color fade indicator is actually useful—I set a reminder on my phone, but it’s nice to have that visual nudge too.

The fade indicator on the brush head is a genius touch — I actually remembered to swap it out at three months for the first time ever. Charging it overnight gives me about two weeks of use, and my dentist commented on how much cleaner my gums look at my last checkup.

The battery finally died after three weeks of twice-daily use, and the fresh-head reminder is a nice nudge—my old brush had no clue when to swap. The black onyx finish looks sleek sitting on the counter, and the charge lasts longer than I expected.