Meet HAIKU: a smart bike computer that combines with your smartphone to help you find your way around, monitor your performance, and keep up with your notifications. It lets you keep your phone in your pocket but uses its GPS to provide you with step-by-step directions. HAIKU offers gesture recognition, so you can go through your stats and notifications with simple hand gestures.
HAIKU fits on any bike. It has batteries that last 1 week on a full charge. The device is compatible with iOS and Android devices. More information is available here.