Smart Watch Heart Rate Bluetooth Call Access Control Step Count Sports Watch Smart Bracelet Features: The 2.04-inch high-definition large screen and the 2.04-inch extremely narrow bezel full screen provide you with a larger and clearer experience. The colors are colorful, fashionable, cool, and agile to operate, making data viewing more convenient. Bluetooth high-definition calling allows you to make and receive calls without using a mobile phone. connecting to Bluetooth, the watch has the ability to make and receive calls and view the phone book. With the support of the high-definition speaker, the watch can make phone calls directly, displaying high-definition sound, making communication more free. NFC support, black technology access control unlocking, and when you return home, your watch also has access control unlocking. Just lift your wrist and approach the NFC door lock to quickly open the door without worrying about forgetting your password and feeling worried anymore All day heart rate monitoring, equipped with advanced optical heart rate sensors, allows for 24-hour, uninterrupted and high-precision heart rate monitoring, Sleep monitoring, 24-hour eye test sleep, support for sporadic naps of more than 30 minutes, sleep quality, analyze sleep status, sleep reports for you, your sleep status is clear at a glance, helping you fall asleep every night Choose from thousands of styles at will, with multiple built-in dials of different styles for you to between. In addition, in the dial market Product Operation mode: button Wrist strap material: silicone Watch strap style: sporty Functions: step counting, heart rate monitoring, blood pressure measurement, Bluetooth call, NFC function, intelligent reminder, remote selfie, sleep monitoring, blood oxygen detection Color: black, silver, gold Communication type: Bluetooth Battery life: less than 7 days Charging : magnetic suction charging grade: domestic Dial style: The product includes: Smart Watch * 1