I found the smart guide a very good tooth brush, teeth feel very clean & fresh.
There's a timer that vibrates every 30 seconds so you when to change cleaning each section of your teeth, after two Min's the clock shows you a smiley face, if you brush for two and a half Min's the smiley winks at you.
If you have to stop the tooth brush to rinse your mouth it stops the time on the clock until you start again then carries on. You have three settings on the tooth brush, normal, press once for a bit slower, press again for pulsating. It comes with two brushes one normal, the other a polishing brush.
The tooth brush holder all comes to bits for easy cleaning, charger can be inside the holder or left at a plug point on its own for easier charging, also comes with handy travel case for the tooth brush.
The clock is very useful in the bathroom so you can keep check on time and not be late for work etc.
A great addition to my bathroom, i love it. great price too keep smiling!