Smart Wearable Fitness Tracker, Sleep Tracking Smart Ring, Heart Rate, Blood Oxygen, Body Temperature Monitoring, Pedometer with APP, IP68 Waterproof Wireless Charging（Black）

As with any ring purchase, it is important to choose the right size when buying a smart ring. The ring should fit snugly on your finger, but it should also have a little room to slide between your fingers. If the ring is the right size, it will be comfortable to wear and virtually unnoticeable. When sizing your ring, it is important to remember that finger sizes change throughout the day. Therefore, it is best to take measurements in the morning, during the day and at night. This will allow you to find the right size as accurately as possible. Temperatures and seasons can also affect finger size – fingers are usually slightly thicker in warmer temperatures than in cooler ones. So how do you measure your ring size if you don’t have an old ring or calipers? You can easily measure at home with string and a ruler. You can use gift string or thin paper as a tape measure. In addition to the string and ruler, you will need scissors and a pencil. Here’s what you need to do Cut a small piece of string and wrap it around your finger to measure the widest part of your finger. Make sure the string fits snugly around your finger and is not too loose or too tight. Use a pencil to mark where the ends of the string meet. Then place the string directly on a flat surface. Then use a ruler to measure the length of the string to the mark. The measurement is the circumference of your finger.

【Sleep Monitoring and Sleep Score】It is designed to help you understand the various stages of sleep such as deep sleep, rapid eye movement sleep, light sleep and wakefulness, where different metabolic processes occur in the body to promote growth, repair, recovery and maintenance.
【Fitness Tracking Ring for Women】You can select any number of exercise modes in the App as your exclusive exercise mode to record your exercise data. You can record all daily health data such as steps, distance, calories burned, etc. in the App.
【Smart Health Ring】As a professional heart health consultant, the Smart Ring is equipped with high-precision, high-performance heart rate and oxygen saturation sensors to accurately acquire data and monitor your heart activity 24/7. The smart ring will intelligently analyze the relationship between your activity and heart rate. Get a comprehensive understanding of your physical condition.
【IP68 WATERPROOF CALORIE COUNTER】Men’s smart health ring has an excellent IP68 waterproof rating. Waterproof up to 164 feet, ensuring you can wear it with confidence in the shower, working out in the rain or even swimming.
【High Quality Material Pedometer Ring】The men’s smart ring is made of medical grade 316 stainless steel to provide maximum comfort.
【Wireless Synchronization with Mobile App】Smart ring health tracker data can be viewed on the mobile app for free without any subscription fee, the app provides various charts and graphs so that you can monitor the progress of your activity and health condition. The device supports Android 5.0 and iOS 10.0 and above.