This is my second sonic tooth brush so far
It has really streamline and seamless design
It is minimum and elegant with a nice matte finish
I have never seen any tooth brush that has black color
I would even think it is done by Apple

The light indicate different modes and you can switch around them

A portable case for people to travel
It has an usb connector allowing you to charge with any usb ports
It is really convenient!!

When placing it on the cup, it also charge the brush with the light on
The base has an induction charger that allows brush to charge through the glass cup
It is really intuitive to use
  It also won many awards, such as Red Dot, IF, Spark and Good Design

I had this watch for a while 
As a industrial design student, I think everyone knows about Dieter Rams
His philosophy has been a Bible for every designers
Having this is like having a sort of "design taste"  

A button with yellow dot to indicate chronometer hand
 

6.2 oz for those who considers the weight