In this Sonicare brush heads comparison, ... a kind of vibration sensation referred to as sonic motion (hence the name). With the latest models reaching 31,000 strokes per minute, ...

Get this sonic toothbrush and 4 extra brush heads for only $40. It's pretty, too. ...

The AutoBrush Sonic Pro comes with a charging base, cable and charging block. (Image credit: Future/Joanne Lewsley) The double-sided nylon brush head comes separately.

The sonic brush head is standard and feels like any affordable brush I've tried. I like the options available from Sonicare more, as they're just a little more dense without being hard, ...

The Smart Sonic Dental Care Toothbrush with eight brush heads is on sale for $27.99, which is $151.01 off its regular price of $179.