A:AnswerI've had my Oura for two years. It charges just as fast as it did the day I bought it. The charge lasts approximately 5-6 days. I am lazy and let it go till it sends me a message saying it needs a charge. It only takes about 25 minutes to charge it. My lifestyle beats the crap out of this ring. I work with hard core dogs all day 7 days a week. I also train those dogs to work in swimming pools so the ring spends 8 hours a day, two days a week underwater. Only 1-2 feet in depth. It is in a dogs mouth and gets hit by their teeth frequently. I do yard work without gloves. This ring is TOUGH
