A:AnswerEasiest way to solve this would be to buy the $10 sizing kit. When we bought the kit, they handed us a $10 gift card, which then cancelled out the price of the ring. This made sure we got the right size ahead of time and didn't need to worry about any exchanges.
A:AnswerYes! It shows total sleep time and also shows you by sleep stages, your oxygen levels, efficiency of your sleep time, cardiac frequency, among other information