1. Durability: The smart health ring is made of stainless steel and epoxy resin, ensuring a sturdy and elegant design that can withstand daily wear and tear. 2. Smart health tracking: It has multiple functions, including real - time heart rate, body temperature, and blood oxygen monitoring, allowing you to track and monitor your health status at any time. 3. Activity tracking: It also serves as a fitness ring, recording your daily steps, providing motivation and insights into your active lifestyle. 4. Comfort: The lightweight and compact Bluetooth health tracking ring can perform all - day monitoring. It is firm and suitable for most fingers. 5. A meaningful gift choice: It makes a thoughtful gift for any occasion or festival, such as birthdays, anniversaries, Thanksgiving, Christmas, Hanukkah, or Valentine's Day. Product type: Smart health ring Material: Stainless steel, epoxy resin Battery type: Lithium - ion battery (included) Battery capacity: 20mAh Battery life: 3 - 5 days Charging time: 30 minutes Protection level: IPX7 Package includes: 1 x Smart health ring 1 x Charging cable 1 x Charging case 1 x Lanyard 1 x Instruction manual