Napoer Bluetooth Healthy Sport Bracelet Smart Fitness Wristbands Sports Tracker OLED Screen Pedometer for iPhone 6 5S HTC Have CE certifications, quality can be relied on. Download an app to mobile phone and switch on your bluetooth to match your smart band with phone. Support activity and sleeping monitoring, also can record trace steps and calorie consumption, providing health suggestions according to the data. Support smart wake, awakening you mutely without noise. Made of top grade silicone material, antibiosis and allergy-proof to use, soft and comfortable to feel.