Temperature information at your disposal at any time is a very important fact to know considering the world's current situation. This ring is designed to have a general idea about your body's running temperature in a second. Just give your ring a glance and you'll know where you're at. After you put it on it takes 30-40 seconds for the ring to do it's heat transfer with your body and then - you're good to go. The edges of the ring are super smooth and it's safe to say that it's comfortable and a great fashion accessory. The ring itself is fairly light so you won't even notice that you're wearing it.
DISCLAIMER: If you're feeling sick and want to have an exact reading, please use a professional thermometer. This ring is not waterproof for a long period of time, so it's preferable to take it off when you're showering or taking a swim.