1、SLEEP MONITORING: This smart ring can detect your sleep, temperature, and other physical health data at any time, detect sleep status and time, and keep you informed of physical condition at any time. 2、SPORTS RING: This smart health ring is also a sports ring with a step counting function that records your daily steps. Suitable for daily life, outdoor sports, fitness, exercise and other scenarios. 3、STAINLESS STEEL: This smart health ring is made of excellent stainless steel, sturdy and reliable, beautiful and elegant. Lightweight design ensures comfortable wearing without any burden. 4、BUILT IN BATTERY: This smart ring has built in 18mAh lithium battery, which has a charging time of 60 minutes and endurance of about 3‑5 days. It is equipped with a 400mAh charging case. 5、MEANINGFUL GIFT: This smart health finger ring is a meaningful gift that suitable for any scenes or holidays, such as birthdays, anniversaries, Thanksgiving, Christmas, or Valentine Day. Item Type: Smart Ring Material: Stainless Steel, Electronic Components, ABS Ring Battery Type: Lithium Battery (Built in) Ring Battery Capacity: 18mAh Ring Endurance: About 3-5 Days Ring Charging Time: 60 Minutes Charging Case Battery Type: Lithium Battery (Built in) Charging Case Battery Capacity: 400mAh 1 x Smart Ring 1 x Charging Case 1 x Charging Cable 1 x User Manual