Wearkey KW19 1.3 Inch Blood Pressure Monitoring Smart Watch (Blue)

1. Material: metal, plastic, electronic components 2. Functions: multiple sports mode tracking, heart rate/blood pressure/blood oxygen monitoring, step counting, smart reminder, remote selfie, weather information, sleep analysis 3. Language: English (default), Japanese, German, French, Spanish, Italian, Polish 4. Chip: HS6620D 5. Screen size: 1.3 inches (TFT screen) 6. Screen resolution: 240 x 240pixel 7. Bluetooth version: 4.0 8. Wireless distance: 5-10m (inclusive) 9. Body memory: RAM128KB+ROM256KB 10. Wearing method: wristband 11. Compatible system: fully compatible 12. Battery capacity: 140mAh lithium battery 13. Charging method: magnetic charging 14. Battery life: less than 7 days 15. Operation mode: touch + button 16. Waterproof grade: life waterproof 17. Dial size: 45 x 50 x 10.8mm