PM250 heart rate monitor comes with textile chest trap which provides the Runtastic app with heart rate data without the help of an additional adapter. The device is compatible from iPhone 4s and iPhone 5, and gives 2-in-1 signal transmission via Bluetooth® smart and analogue method (5.3 KHz).Further, it has individual training range and alarm, and shows average and max heart rate,side by side giving an accurate ECG heart rate measurement. Moreover, the device depicts the calorie consumption in kcal along with suggesting 5 training zones .Also, the monitor shows date, time and has a stop watch, accompanied with GPS navigation, speed and route recording, which can be viewed with your Smartphone. The device also gives Voice output in DE, EN, FR, IT and ES, and is splash proof. For more information on the product and online account one can visit the site www.runtastic.com.