1、Titanium Alloy Material: The wearable smart ring is made of premium titanium alloy, which is sturdy, durable, and aesthetically pleasing. It is suitable for both men and women. 2、Sleep Monitoring: This smart ring health tracker can analyze your sleep time and sleep quality to provide insights into the quality of your sleep, helping to detect your health. 3、Multifunctional: In addition to sleep monitoring, this ring can also monitor body temperature and track various health data, allowing you to observe your overall physical well being. It can also be used as a fitness tracker, accurately recording your daily steps. 4、Rechargeable: Equipped with a charging case, the smart ring is convenient to charge and eliminates the worry of running out of battery while traveling. It also facilitates easy storage. 5、Compact and Lightweight: With its lightweight design, the smart ring is incredibly light, weighing only around 5g. It offers a comfortable and barely noticeable wearing experience, to the point where you might forget it's even there. 6、Wonderful Gift Choice: This smart ring is a meaningful gift suitable for any occasion or holiday, such as birthdays, anniversaries, Thanksgiving, Christmas, or Valentine's Day. Item Type: Wearable Smart Ring Material: Stainless steel, electronic components, ABS, titanium alloy Color: Silver Ring Battery Type: Lithium battery (shipped with built in battery) Ring Battery Capacity: 18mAh Ring Battery Life: About 3 to 5 days Ring Charging Time: 60 minutes Charging Case Battery Type: Lithium battery (shipped with built in battery) Charging Case Battery Capacity: 300mAh 1 x Smart Ring 1 x Charging Case 1 x User Manual 1 x Storage Bag 1 x Cloth 1 x Charging Cable