SMART WATCH Functions: 1.Heart Rate Monitoring 2.Reminder 3.Calories Tracker 4.Time 5.Alarm 6.Distance Tracker 7.Step Monitor 8.Call Function 9.Notification Update Working: Bluetooth connection required to connect to mobile (Android and iOS). PACKAGE CONTENTS: 1 x 1 x Smart Watch, 1 x Magnetic Holder/Clip Charger, 2 x Band Sets, 1 x User Manual smartwatch, a small smartphone like device worn on the wrist. Many smartwatches are connected to a smartphone that notifies the user of incoming calls, e-mail messages, and notifications from applications. ... The user can operate the smartwatch through a touch screen, physical buttons, or a combination of the two.T55 Watch 44mm Dual Strap 1.54 inch Display Bluetooth 4.0 + 5.0 LE - Dual Connectivity Optical Heart Rate Sensor With Dynamic Heart Rate Real Time Monitor Heart Sensor to calculate Heart Rate