Product details : L18 Smart Watch The L18 Smart Watch features a 45mm bandwidth, a built-in voice assistant, Bluetooth 5.1, and a TFT touch screen. It offers various activity-tracking functions like step, distance, calorie tracking, and sleep monitoring., Specification : Bandwidth [mm] :45mm Built-in voice assistant : YES Bluetooth compatible version : 5.1 Metric measurement:Others, sleep monitor Activity tracking :Others: step tracker, distance tracker, calorie tracker, activity tracker Touch screen:YES screen material : Tft Resolution : 240*296 Screen size:2.19 inch Screen shape : SQUARE Case material : ALLOY Band material : ALLOY Sim card available :No Multiple dials : Yes System : Original OS, Android  Language : English Function : Passometer, Fitness Tracker, Sleep Tracker, Message Reminder, Call Reminder, Answer Call, Dial Call,