Wahoo RFLTK is the world’s first iPhone Powered Bike Computer. It works as a substitute for your iPhone which needs to be safe in your pocket or satchel while you’re riding bicycle. This sleek and small device connects via Bluetooth 4.0 (Wahoo Fitness App +Free) and is quite useful for bicyclers in such a way that it plainly displays integral information about your trip and activity. By using the buttons on its side, a user can easily perform several functionalities like changing data screens, start/stop timer, internet, social media and it even allows you to change the music. Not just that, this small computer houses a Shock proof performance, body sensors, and easy mounting options. Supported with iPhone 4S, iPhone 5, iPhone 5S and 5C.
Available at amazon.com for $129.99