Special Features: Heart rate monitor Blood pressure monitor Sleep monitor Multi-sport modes Pedometer Call and message reminder Call ID display Information push reminder (SMS, QQ, WeChat, Skype, Facebook, Twitter, Line, WhatsApp) Push again Music control Auto light-up screen Alert type: Vibration Stopwatch Other functions: Alarm clock, Sedentary reminder, Camera remote control, Anti-lost APP name: DayBand Specifications: CPU: SYD8810 Bluetooth version: BT 4.0 or above Compatible OS: Android 4.4 or above, iOS 8.4 or above Operational mode: Touch key Waterproof: IP67 (Not suitable for bathing or swimming) Screen: 0.96 inch TFT Resolution: 128 x 96 pixels Battery capacity: 90 mAh Standby time: Approximately 4-5 days Usage time: Approximately 2-3 days Charging time: Approximately 4 hours Charging method: USB charging App languages: Russian, German, Italian, Czech, Japanese, French, Thai, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Korean Package included: 1 x Smart bracelet (charger not included) 1 x User manual Notes: Wearable devices use electronic sensors to monitor activity and are classified as consumer electronics. Slight variations in data are normal. Users should interpret the data objectively. Do not compare with hospital equipment; this is not a medical device. Before use, scan the QR code in the manual to download the application and connect it to the watch. For Android users: Always grant the application necessary permissions to ensure full functionality.