Cycle Computers Polar

Boost your cycling performance with our cadence and cycling speed sensors: find out what your most efficient pedaling rate is and measure your speed and distance accurately. The sensors included in this set work with Bluetooth® Smart technology and consume only a little energy. You can later analyze your training at the Polar Flow web service.- Compatible with dozens of leading fitness apps- Small and light design with firm bike attachment- Compatible with iPhone 4S and later and select Android devices using Android 4.3 or later.