Beat your previous fitness goals with the Next Gen TW64s Bluetooth Fitness Bracelet Choose from pink, dark blue, black, light blue or orange TW64 5-in-1: pedometer, calorie counter, sports timer, sedimentary reminder and sleep monitor, date and time TW64S 6-in-1: same as above with heart rate monitor as additional function Sedentary and drink reminder to encourage a healthier lifestyle Lightweight and water-resistant - ideal for running, cycling, hiking and more Minimum device specification: IOS 7.0+ Android 4.3+ Bluetooth 4.0 Approx. 24cm complete length Includes instructions and USB charger Buying Options 9.99 pounds instead of 59.99 pounds for the TW64 Watch - save 83% 17.99 pounds instead of 149.99 pounds for the TW64S Watch - save 88%