X8 1.69 inch HD Color Screen Bluetooth Earphone Smart Bracelet, Support Sleep Monitoring Blood Pressure Monitoring Heart Rate Monitoring 1. Support Bluetooth calling, full touch, heart rate, shake to take pictures, call reminderreject, information storage, multi-sport mode, weather 2. Main functions: multi-language, information reminder, alarm clock, looking for bracelet, health monitoring; exercise record (pedometer, calories, mileage) time, week, date Information reminder SMS, QQ, WeChat, Skype, Facebook, Twitter, WhatsApp, Line, Viber 3. APP supports 14 languages: Chinese, Traditional Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Vietnamese, Portuguese, Arabic, Thai 4. Watch language: English, German, Russian, Spanish, Italian, French, Vietnamese, Portuguese, Arabic, Thai, Polish 11 languages 5. Parameters: Bluetooth version: mobile phone Bluetooth 5.0, data storage Bluetooth 4.0 Charging compartment battery capacity: 250mAh polymer lithium battery Headphone battery capacity: 30mAh polymer lithium battery Charging box function: the main body can charge the pair of ears for 2-3 cycles; standby time: 8-12 days, music time: 3.5 hours; charging method: magnetic charging, charging time: 1-2 hours Main chip: SYD8811, TWS chip: 8926B2 (Zhongke Lanxun); heart rate chip: 3300 Screen size: 1.69 inches Screen Resolution: 240x280 Dust and waterproof IP67 Memory: 192KB RAM+1024KB ROM+64MB UI-Flash Control method: touch display Vibration: Real-time vibration reminder Main shell material: glass lens + zinc-aluminum alloy Compatible system: Android 4.4 and above; ios 8.0 and above APP software: Power Band