1、DURABLE AND BEAUTIFUL: The main body is made of sturdy titanium alloy, which not only has good durability, but also is beautiful and elegant. 2、PORTABLE DESIGN: With charging compartment, easy to charge, you don't even need to worry about running out of power when you are travelling outside, and it is also easy to store. Meanwhile, the ring is designed with an ultra light body (the ring is only about 5g), no sense of wear, so light that you may forget it exists! 3、MULTIPLE FUNCTION: You can monitor your sleep, body temperature, step and other health data at any time, so that you can observe your own health condition anytime and anywhere! 4、FITNESS AND SLEEP MONITORING: This smart ring is not only a sports ring that can count the steps, but also can reflect your sleep quality situation by recording your sleep time and sleep status. 5、MEANINGFUL GIFT: It is suitable as a surprise gift given to your loved ones for any occasion or holiday, such as birthday, anniversary, Thanksgiving, Christmas, or Valentine's Day. Item Type: Smart Ring Material: Stainless Steel, Electronic Components, ABS, Titanium Alloy Ring Battery Type: Lithium Battery (Built In) Ring Battery Capacity: 18mah Ring Battery Life: About 3-5 Days Ring Charging Time: 60 Minutes Charging Compartment Battery Type: Lithium Battery (Built In) Charging Compartment Battery Capacity: 300mah Color: Black 1 x Smart Ring 1 x Charging Compartment 1 x Instruction Manual 1 x Storage Bag 1 x Cloth 1 x Charging Cable