Essence 5500 The Essence 5500 is the top of the Essence line. With all the found in the Essence 5300, the 5500 also comes with Quadpacer, which helps you give every area of your mouth the complete attention it deserves. And an extra brush head means no replacements for a year. Smartimer : automatically shuts off after 2-minute dental recommended brushing time Easy-start : lets new users acclimate to the Sonicare experience Extra gentle bristle design Recharge indicator : indicates charge level so you know when to re-charge Recharge indicator : indicates charge level so you know when to re-charge