Kolibree Smart Toothbrush. How do you improve the humble electric toothbrush? By adding Bluetooth and an app of course! The Kolibree toothbrush has an accelerometer, gyroscope and magnetometer inside which it uses to record how long you brush your teeth for, and how you brush them. It can show you live information on how you're doing so you can adjust your brushing technique, or simply brush for longer.