Fangrui Product Details 1. P8 1.4 Inch Heart Rate Blood Pressure Monitoring Smart Watch, Color: Blue 2. Material: Alloy, Tpusteel, Electronic Components 3. Functions: Step Counting, Social Entertainment, Smart Reminder, Remote Control Selfie, Health Monitoring, Information Push, Sleep Analysis 4. Menu Language: Simplified Chinese, Traditional Chinese, English, German, French, Spanish, Korean, Japanese, Russian, Ukrainian, Arabic, Portuguese, Italian And Other 100 Languages 5. Compatible System: Android, Ios 6. Screen Size: 1.4 Inches 7. Screen Resolution: 240 X 240px 8. Bluetooth Version: 4.0 9. Wireless Distance: 5-10m (inclusive) 10. Body Memory: Ram64kb Rom32mb 11. Wearing Method: Wristband 12. Battery Capacity: 170mah Lithium Battery 13. Charging Method: Charging With Charging Clip 14. Battery Life: About 7 Days 15. Operation Mode: Touch 16. Waterproof Grade: Ipx7 17. Multiple Sports Modes 18. Monitor Sleep Throughout The Process And Scientifically Analyze Sleep Quality 19. Optical Heart Rate Sensor, Real-time Monitoring Of Heart Rate 20. The Screen Adopts A 1.4-inch High-definition Display + 2.5d Curved Glass Design, Which Is Clear And Delicate 21. Product Weight: 128 Grams