POSMA SBH202A Heart Rate Smartband Fitness Activity Tracker Waterproof Bluetooth IOS Android APP Sleep Monitor Calorie Step Pedometer, White color word display Built-in green light heart rate sensor. Continuous heart rate recording. Up to 30 days data storage. Battery: 1-2 hours charge. Battery life: up to 5 days normal use without IR on, 12-18 hours heart rate measurement. Incoming call & message notification. Bulit-in vibrator notification for incoming calls and SMS. Pedometer. Steps. Distance. Calories burnt. Sleep quality management. Time. Touch screen. IP5/6 waterproof (not for swimming). Bluetooth 4.0. IOS & Android support (IOS: Compatible with 7.0 or above Android: Compatible with 4.3 or above). Language: English.