X4 1.14 inch HD Screen Bluetooth Earphone Smart Bracelet Support Sleep Monitoring / Body Temperature Monitoring / Heart Rate Monitoring(Rose Gold)

1. Main chip: NRDIC:528322. Optical sensor: OSRAM SFH70703. Heart rate sensor: 33004. Temperature sensor: ACNT1015. Screen: 1.14 inches 135*240 resolution6. Waterproof and dustproof: IP677. Battery: 100 mAh polymer lithium battery8. Standby time: 4-6 days or longer9. Charging method: contact charging10. Charging time: about 1-2 hours11. Data connection: mobile phone Bluetooth 5.0 and Bluetooth 4.0 synchronization12. Compatible system: Android 4.4 and above; ios 8.0 and above13. Shell material: glass lens + aluminum alloy strap material: silicone14. APP support languages: Chinese Traditional Chinese English Japanese Korean German Russian Spanish Italian French Vietnamese Portuguese 12 languages15. Functions: heart rate monitoring blood pressure monitoring sleep monitoring exercise monitoring mileage calorie consumption message reminder sleep record remote control camera Bluetooth call stopwatch voice assistant alarm reminder etc.