H21 1.14-inch Steel Band Earphone Detachable Smart Watch Support Temperature Measurement Bluetooth Call Voice Control 1. Support Siri or voice control, heart rate, blood pressure, blood oxygen, message reminder, call push name, raise hand to turn wrist to brighten the screen, Bluetooth call, music playback, alarm clock, brightness adjustment, weather forecast, dial switch, language change (Chinese and English) 2. Message push reminder: incoming call, SMS, WeChat, QQ, Facebook, Twitter, LinkedIn, WhatsApp 3. Data synchronization: time, step counting, sleep, heart rate, body temperature data synchronization 4. Set alarm clock: support setting 5 alarm clock reminders 5. Other reminders: support drinking water reminder, sedentary reminder 6. Health management: support automatic heart rate and body temperature monitoring 6. APP languages: Simplified Chinese, Traditional Chinese, Ukrainian, Urdu, Russian, Hungarian, Hindi, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Thai, Romanian, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean 7. Parameters: CPU1: SY8811 CPU2: E1500 Bluetooth version: BT5.0 Heart rate sensor: 3300 Temperature sensor: support compatible Full-time pedometer: support Motor: support Horn microphone: support Screen: 1.14 inches (135x240) Function key: 1 virtual touch key Battery capacity: 100mah-110mah