Oura Ring: Great Days Start with Good Sleep
Oura does not need to be paired with a smartphone to work; it will record all data collected for up to three weeks. Pairing via Bluetooth is only needed when you want to evaluate the data collected by the ring. It is equipped with a battery that can last up to three days. When the battery runs out, place the Oura in the case that is connected via a Micro USB, then the charging process will last for 30-60 minutes.