Activity Monitors features: Chronus Smartwatch Fitness Smart Watch IP67 Waterproof, 4GB Internal Sports Music Memory, 8 Training Modes, Pedometer(black) Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. (4GB Music Storage): Control mobile music playback via bluetooth and transfer your songs to the watch via your laptop with 4GB local storage. Put on your wireless headphones, turn off your phone and exercise to the beat of music anytime, anywhere. (GaWear smart watch bluetooth auto standby function) When you do not use the smart watch for a long time, the smart watch will disconnect the bluetooth connection with the cellphone, providing longer battery life (the connection with APP will not be interrupted) during a call, smart When the watch is listening to music, the smart watch will connect to the device automatically through bluetooth. (Long Lasting & Waterproof IP67): Watch can be used for 7-10 days or standby for 10 days when charged for 2 hours. Very suitable for using this smart watch in your daily sports, business meetings and family trips. even no need to take off your watch to swim, wash your hands. This app is suitable for most smartphones. (1.28 Inch Large Color Screen): This 1.28 inch color touch screen smart watch, the brightness can be displayed in 5 levels, choose the most suitable screen brightness so that it can be clearly visible and easy to read at sun, and the operation is simpler and easier to use. This watch supports custom wallpaper, you can upload any favorite photo. (Your Life Assistant): The watch supports bluetooth calling, phone book functions, call recordings, you won't miss any calls or messages. If your phone receives a call or text, it will remind you. Also sedentary reminders, alarm clocks, stopwatch, alert to drink water, shake photo, music control, hunt group, etc.