Multi-functional Bluetooth Talking Smart Bracelet: a smart bracelet that combines Bluetooth talking, heart rate detection, blood oxygen detection, blood pressure detection and many other functions. Intelligent exercise tracking: supports various exercise modes such as time display, pedometer, calorie consumption, distance statistics and heart rate monitoring, helping you to fully understand the exercise data. Accurate sleep monitoring: through the sleep monitoring function, it records your sleep time and sleep quality and provides scientific and reasonable sleep suggestions. Practical and convenient message reminder: supports incoming call notification and message reminder function, and also can push multi-language messages, so that you do not miss important information. This smart bracelet is not only powerful, but also has fashionable appearance and convenient operation, it is a good helper for your healthy life. Main Control (CPU): RTL8763EWE. FLASH: 128Mb FLASH. Memory (RAM+ROM): 640kByte ROM 578kByte RAM. Screen Display LCD: 1.3" IPS screen Resolution: 360*360. Display Brightness (total brightness): 400 lumens. Touch panel: G+F process. Material: Zinc alloy case + PC back + stainless steel strap. Bluetooth Version: Bluetooth 5.2. Battery capacity: Li-polymer battery 200 mAh with battery protection IC. Standby Time: 25 days. Working Time: About 5 days. Charging time: 2H. Gravity Sensor (G Sensor): Silicon Power STK8321. Heart Rate Sensor: HX3605. Motor (Vibration): Built-in, size: 0820. Charging cable: magnetic charging cable with chip protection IC. Speaker: 1508 (waterproof speaker). Mic: TMG4015 (waterproof mic). Waterproof Level: IP68. Charging Requirement: Charging 1A or below. Functions include: bluetooth call, heart rate detection, blood oxygen detection, blood pressure detection, time display, pedometer, calorie, distance, multiple exercise modes, sleep monitoring (sleep time, sleep quality), notification of incoming calls, message alerts, multi-language push, task reminder (sedentary reminder), music control, synchronize data to APK/APP. Android and Apple app synchronization: Fitcloudpro. Reminder: (IOS system in Apple Store, Android phone search Fitcloudpro in App Store to download and install). System requirements: Android 5.0 and above, IOS 10.0 and above, support Bluetooth 5.0 Device Size: (mm): 44.5*44.5*11.2MM. Gift box Size (mm): 148*120*25MM. Net Weight (g): 68g (including stainless steel strap). Gross Weight Corss Weight (g): 152g (including packing).