LAZRU Health Smart Ring - No.6-13 Ring Sizes

Features: />All-day automatic heart rate, blood oxygen, body temperature detection, APP can adjust the time interval />Auto sleep detection (light/deep sleep, sleep and wake up time) />All-day activity tracking, steps/calories/distance/activity time/daily goal />Women's health; />Easy to wear and meaningless; (Compared with smart watches/bands with similar functions) />Up to 7 days of battery life; />6 Sizes - 13 Optional Sizes (US Standard) />Wireless charging box /> />Specification: />Bluetooth Version:BLE 5.0 />Bluetooth Range:2M />Size:No.6-13 Ring Sizes(US Standard) />Battery: rechargeable lithium battery, 14.5~21.5mAh />Memory:30 days />Charging method: wireless charging />Charging time: <2 hours />Standby Time:5-7 Days />Compatible System:Android 5.0 & iOS 10 /> />Package Included />1 x Smart Ring />1 x Wireless Charger />1 x Type-C Charging Cable />1 x User Manual />1 x Gift Box