Model: F1 Touch Screen: Yes Application Age Group: Adult Bluetooth: BT4.0 Screen Style: Rectangle shape Screen: 0.66 OLED Power: Polymer lithium battery Battery capacity: 80mah Waterproof Grade: Life Waterproof Waterproof: IP67 Material: silicone & plastic Color: Blue, Black, Red Total length: 240mm Band width: 19mm Band Height: 2.3mm Screen size: 43 x 24 x 12mm Time mode: display time, battery, data. Sport record: automatically records the number of steps. Calories mode: displays Calories burned. Heart Rate Monitor Tracker: Heart Rate Monitor smart bracelet with optical heart rate sensor shows your heart rate with PPG, you can see the results more easily. Blood Oxygen Monitor Blood Pressure Monitor Sleep Monitoring: Monitor your sleep time and quality, help you to develop good living habits. Call & Text Reminder: Smart Bracelet will tell you when a call is coming; you never need to worry about missing any important calls. Support Call, SMS, WhatsApp, Facebook, Twitter, Wechat, and other social network site alert (When phone is nearby) Brand other SKU AA370FA0BBZKSNAFAMZ-238642 Compatible Operating System Not Specified Bluetooth Version Bluetooth 4.0