The BioLogic Speed and Cadence Sensor uses Bluetooth Smart technology to transmit information to a Bluetooth Smart Ready device such as the iPhone 5/5s and iPhone 6/Plus and newer, allowing you to track your effort with a cycling app. The Speed and Cadence Sensor works with many cycling apps that have a Bluetooth sync option, such as the BioLogic Bike Brain app for iPhone.
Works with iPhone 4s and later, as well as any Android with Android 4.3 or newer.