R2 Smart Fitness Tracker Ring Bracelet Bluetooth Ring Finger Digital Ring

    Smart Ring Bracelet Bluetooth Ring Heart Rate Monitoring/Waterproof/Blood Oxygen/Sleep/Body Temperature Bluetooth Health Tracker Ring---Our Bluetooth ring can track your movement track, movement data through the sensor in the ring, and upload it to the cell phone APP in real time, so you can record your movement at any time. It can record your steps in a day, providing you great using experience. Also, This smart ring can detect your sleep time and sleep state during your sleep to tell you how your sleep quality is. Lightweight Design---The smart ring is made of aluminum alloy and ceramic, which is durable, beautiful and elegant. Meanwhile, the ultra light body of the smart ring has no sense of wearing. The wearing experience is so light that you may forget its existence. Multiple Functions Smart Health Ring---The smart fitness tracker ring has multiple functions, which can monitor your heart rate, temperature, step count, sleep quality, calories and blood oxygen at any time