The Oura Ring Gen 3 discussed in this article has been replaced by the newer Oura Ring 4. Check out my full Oura Ring 4 review to see why I think it's the best smart ring money can buy.
In rock 'n' roll there's no retirement age... in fact there are a great many bands that are continuing to play some 40 or 50 years after their first hit. But who is the oldest? In reverse order ...