Feature: 1. Premium Material: Crafted with premium microcrystalline zirconia ceramic, ABS, electronic components, and stainless steel, this smart health ring is sturdy, and elegantly beautiful. 2. Intelligent Health Monitoring: The smart ring features various health functions to track your sleep, body temperature, step count, and other health data, allowing you to keep track of your physical well being at any time. 3. Advanced Sensors: Equipped with sensors like a body temperature sensor, acceleration sensor, touch sensor, etc., this ring ensures real time temperature monitoring and enables touch gesture control of electronic devices such as phones, computers, and TVs for added convenience. 4. Multiple Functions: In addition to traditional functions like sleep monitoring and body temperature, the smart health ring includes features such as recovery data reports for various health indicators, physiological cycle tracking, SOS, smart touch control, enhanced water resistant rating, and more. 5. Lightweight Design: With an ultra light body (weighing around 5g), this smart ring fitness tracker offers a comfortable wearing experience, so thin and light that you might forget it's there. 6. Meaningful Gift: This smart health ring is a meaningful gift suitable for any occasion or holiday, including birthdays, anniversaries, Thanksgiving, Xmas. Specification: Item Type: Smart Health Ring Material: ABS, Microcrystalline Zirconia Ceramic, Electronic Components, Stainless Steel Color: Black Ring Battery Type: Li Battery (Shipped with Built in Battery) Ring Battery Capacity: 18mAh Ring Battery Life: 4 to 6 Days Ring Charging Time: 45 Minutes. Package List: 1 x Smart Health Ring 1 x Charging Base 1 x User Manual