General specifications: 1. Product size: 45x10mm 2. Case material: PC+ABS 3. Strap material: silicone strap 4. Product weight: 37g 5. Waterproof level: IP67 6. Battery life: 7-10 days (depending on usage scenarios) 7. Charging time: Less than or equal to 3H 8. Compatible with smartphone systems: Android 4.4 or IOS 8.0 or above systems that support Bluetooth 5.0 BLE 9. Watch firmware language: Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean, Dutch, Hindi 10. APP language: Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean Hardware Configuration: 1. CPU: RK8752X 2. RAM: 160KB 3. ROM: 384KB 4. Flash: 64Mb 5. Heart rate chip: VC11 6. Bluetooth: BLE5.0 7. Display: 1.83 inch, 240x280 IPS display 8. Physical buttons: 1 9. Touch: Full screen touch 10. Battery: 270mAh Software configuration: 1. Other functions: QQWeChatFacebookLineWhatsApp and other reminders 2. Basic functions: weather, incoming call, Information reminder, Pedometer, Alarm clock, Find a phone, Photo control, music control, Mileage calculation, Countdown, Raise the hand on the screen, Stopwatch 3. Bluetooth call connection: Connect 1 time 4. Health management: Sleep monitoring, heart rate, blood pressure, Blood oxygen, Calorie monitoring, temperature detection, Sedentary reminder 5. Sports modes: 24 sports modes