KASSICA Fitness Tracker Smart Wristband Bluetooth Smart Bracelet Activity Wristband with Heart Rate Monitor Step Walking Distance Calorie Counter For IOS Android Samsung Iphone Smartphone High-quality material, medical grade TPU, materials are made of high quality silicone strap, soft and comfortable to wear HD touch display screen and soft adjustable silicone strap make a elegant appearance, a bracelet combines with art and technology Displays steps, distance, calories, heart rate, floors climbed and activity intensity Humanized design, with gesture recognition function, you only need to raise and turn your arm when wearing, watch screen will automatically light up Sweat-proof resin strap and waterproof design perfect for outdoor sports, such as swimming, running,climbing, cycling, traveling, etc.