Oura is a smart ring that measures sleep, recovery, activity and other health indicators. Data is shown in the accompanying app for iOS and Android, which is used with a membership. The product is aimed at personal use, and the vendor describes its Health Radar features as intended for general wellness purposes only. Oura is an alternative to wrist-worn fitness trackers from US brands such as Fitbit and WHOOP. Its software is not open source.
According to the privacy policy, Oura Health Oy, based in Oulu, Finland, is the controller for most personal data; Ouraring Inc. in San Francisco is named as controller for marketing. The policy states that Oura operates servers around the world and that personal data may be processed outside the user's country. For transfers to the United States, Oura relies on the EU-US Data Privacy Framework. The policy does not name specific hosting regions, so a European organisation needs to check these arrangements itself.