issa™ 4

The silicone bristles feel gentler than my old nylon brush, but I was honestly shocked how clean my teeth feel after just the first two-minute cycle. A full year between charges means I can toss this in my travel bag without ever hunting for a USB cable.

I've had it for two months and the charge indicator still hasn't budged from full—that one USB charge claim is real, which is amazing since my old brush died every week. The silicone bristles feel gentler than nylon, too, so my teeth get that just-cleaned squeak without any harsh scraping.

My gums feel noticeably less irritated after two weeks, and the silicone bristles are way gentler than the nylon ones I used before. The hybrid design cleans deep without that harsh scrubbing sensation.