Meet the Smart B-Trainer from Sony: a smart wearable device with 6 sensors designed for runners. It has heart rate, accelerometer, GPS, compass, gyroscope, and barometer sensors and 16 GB of storage space for your music and running data. In fact, you don’t need to carry your phone every time you go out for a run with your Smart B-Trainer.
The device lets you plan your workouts and use music that matches your tempo to push harder. It also offers audio coaching. More information is available here.