I tested for you "PowerUp Sensitive Toothbrush PHILIPS". It uses sonic technology 'Soniccare' which consists of micro vibration and NOT rotations as well known for Oral B - 63746706 - Electric toothbrush - Professional Care 500 - rechargeable - clean precision! The clean feeling is immediate! The weight of the Toothbrush is lightened its load & dock is very small. But what bothers me is the size of the brush head which measures: length (24 mm) x width (10 mm) x height (11 mm)! It is smaller than the size of a Toothbrush for KIDS! So when the head does not touch your teeth, is the handle that comes into direct contact! Unpleasant effect GUARANTEED! Also, when I see the exorbitant prices Philips refills - HX6052 / 05 - Philips Sonicare Sensitive Standard Brossette x2 & Philips - HX6054 / 05 - Philips Sonicare Sensitive Standard Brossette x4, I wonder who want to pay the price in times of crisis? Not me anyway! In conclusion, although effective & not taking place, I DO NOT RECOMMEND THIS PRODUCT.