Green Lion Smart Health Tracker Ring Size 9 – Black

-Compatible Systems: Android 5.1 or above, iOS 8.0 or above

-Battery Life: : 5-7 days of use, 15 days of standby

-Blood Pressure, Sleep Monitoring, Heart Rate Blood Oxygen

-Dust Proof & Waterproof Level: 5 ATM

-Charging Mode: Magnetic Charging

-Battery Type: Lithium polymer

-Flash Memory:  ROM 512KB

-Battery Capacity: 15mAh

-Chipset: BlueX Micro

-Bluetooth: V5.0

-Sensor: STK8321

-App: QRing