POWHA Smart Ring - Black Health Tracker

FEATURE Research-Grade Sensors Monitoring your sleep, activity, recovery, temperature, heart rate, stress, and more. Award-Winning Design Comfortable and timeless ring design, IP68 water resistant and super light - perfect for every occasion from work to workout to night out. More Accurate from the Finger The finger's pulse signal is stronger and more accurate than the wrist, making it an ideal source of accurate heart rate data, and is more sensitive to motion and more accurate across all skin tones. Long Battery Life 3-6 days of battery life (full charge in 20-80 minutes) Ultra-high Accuracy 99% heart rate measurement accuracy and 98% HRV measurement accuracy. Decipher your Sleep Smart Ring determines the time spent in each sleep stage (light, deep sleep, REM sleep) and the quality of your sleep by taking into account key vital signs such as your body temperature, heart rate and HRV through our new state-of-the-art sleep algorithm SpO2 Sensing Smart Ring senses your blood oxygen level while you sleep, giving you a more accurate picture of the quality of your night's rest. Product Information: Product Name: Smart Ring Color: Black/grey/rose gold/gold Material: Metal Product weight: 0.2KG Product size: 1.5 * 0.8 * 0.8CM Package contains: product parts, instructions for use Packing Detail： 1*smart ring