BioLogic has introduced a new wireless speed and cadence sensor that can transmit directly to a mobile device via Bluetooth 4.0 and is thus capable with Android and iOS. The sensor is powered by a single CR2032 battery that is said to provide up to 700 hours of riding data. The Bluetooth Smart Speed/Cadence sensor (MSRP: $45.95) will be available in the second quarter of 2014.