Kérastase Smart Brush - The Kérastase Hair Coach Powered by Withings takes brushing your hair to a whole new level. A built-in microphone records the sound of brushing, an accelerometer and gyroscope identify brushing patterns and count brushstrokes and sensors detect if brushing dry or wet hair. All data is sent via WiFi or Bluetooth to a mobile app that provides a daily hair breakage score. The Hair Coach Powered by Withings will retail for less than $200 and launches mid 2017.