Smart Ring Health Tracker, Lightweight Waterproof Smart Ring for Men and Women, Fitness Sleep Tracker Smart Ring, Birthday Anniversary Christmas Choice (Inner Diameter 19.9mm)

PRACTICAL GIFT: This ring is a meaningful present for any occasion or festival, such as birthday, anniversary, Thanksgiving, Christmas, or Valentine's Day.
MULTIFUNCTIONAL USE: The smart ring has a variety of functions, you can always detect your sleep, body temperature, keep track of steps and other physical health data, so that you can always observe their physical health.
LIGHTWEIGHT AND COMFORTABLE: Lightweight design, ultra light body (the ring is only about 5g/0.2oz), no sense of wearing, light wearing experience, so light that you may forget it exists.
EXERCISE RECORD: The health ring can also be an exercise ring as it can keep track of all your steps throughout the day. The main body of the ring is made of premium aluminum alloy, which is sturdy and strong, beautiful and elegant.
SLEEP DETECTION: This ring can also detect your sleep time and sleep status to tell you how your sleep quality is. The shape is minimalist, beyond the traditional wearable products of the cumbersome, both fashion and elegance.