1. Premium Material: Made of high strength Titanium Alloy, this smart ring is and elegant in design, ensuring long lasting usage.2. and Comfortable: With its and ultra thin body, this smart ring provides a comfortable wearing experience.3. Multi-function: This intelligent ring offers various functions, monitoring your heart rate, body temperature, sleep patterns, and step count.4. Help you manage your emotions relieves anxiety: If there are negative emotions such as anxiety and sudden anger, as well as poor sleep quality. The heart beat often shows signs of acceleration or unstable heart beat patterns Inabnormal data analysis, emotional issues can be predicted as clues.5. Ideal Gift: This smart ring serves as a meaningful gift for any occasion or holiday, such as birthdays, anniversaries, Thanksgiving, Christmas, Hanukkah, or Valentine's Day.CPU:FR8016HABluetooth Version:BLE 5.0Battery capacity:28mAhStandby Time:About 45 daysWorking Time:About 3-5 daysCharging time:0.5HG Sensor:msa310.Heart Rate Sensor:HX3605Waterproof Level:IP67(Not fit for bathing and swimming)Charging Requirement:Charging 1A or lessAPP:JSRing.System requirements:android 5.0+/ios10.0+APP supports languages:English (default), Arabic, , Danish, German, Spanish, Persian, French, Italian, Japanese, Dutch, Portuguese, Romanian, Russian, Turkish, Chinese (Simplified).Main Function:Heart rate measurement.Blood oxygen.Blood pressure measurement.Sleep monitoring.Step Count.Calories.Temperature measurement (Skin temperature measurement).Colour:A:GoldMaterial:Titanium AlloyPackage Contents:1 * Smart ring(20mm) 1 * Charging boxOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.