Soon enough, some decisions will have to be made in regards to what you’re going to shove on top of your brush handle when it comes to replacing the head ... referred to as sonic motion ...

The X Ultra S comes with three replaceable brush heads in the box, each one catering to a different type of clean, like gum sensitivity or whitening. They look like any other sonic brush head ...

This feels almost sonic in the way it moves, like a Philips Sonicare toothbrush head but isn’t as it employs more energy. There are two different iO brush heads available on the market at ...