Review (5/5): Oral B Smartseries 4000
I am very happy with this electric toothbrush. Every 30 seconds it beeps so you know you should move to a different quadrant of your mouth. It has multiple settings from soft to hard, and a setting for "polish". My only negative comment is that you can't really see the different settings while you are brushing. You either have to memorize how many times to press the button to move to a different setting, or turn it off to look at the settings on the handle. If you look while you are brushing, the paste splatters everywhere. Minor annoyance. 5 stars because it does an excellent job cleaning teeth.