Multiple Functions: The fitness ring features real time synchronization with phone for accurate sports data tracking, including exercise modes, mileage stats, workout time, calories, and steps. Remote Care: The fitness ring allows you to add family or friends to remotely view their daily exercise data, such as steps, mileage, calories, and sleep time, providing a way to care for loved ones from afar. Long Battery Life: Built in strong magnetic charging coil of this fitness health ring allows for quick and efficient charging in about 1 hour, with a standby time of up to 7 days. IP68 Water With IP68 water rating, you can wear the ring during showers, swimming, and hand washing, ideal for indoor and outdoor use. Lightweight and Enhanced Comfort: Made of stainless steel, the workout ring is to wear and tear, lightweight to wear for enhanced comfort, also featuring stylish and simple appearance. Specification:
Item Type: Smart Ring
Material: Stainless Steel, EP
Battery Type: Lithium Battery
Battery Capacity: 20mAh (Included)
Battery Life: Approx. 5 days
Charging Time: Approx. 30 minutes
Thickness: Approx. 2.5mm / 0.1in
APP: For Smart Health

How to Use:
Thread the needle with fine thread for sewing clothes, measure the position of wearing rings (the base of the finger). Use a ruler to measure the length of the thread (pull the thread straight, align the points on both sides) and make sure to measure slightly tight, otherwise it will be too big.

packing list:
1 x Ring
1 x Charging Cable
1 x User Manual

Note:
When wearing, please make sure the optical sensor is in close with the skin of the fingertip to ensure accurate data.