New Oura Ring update brings one of the Ring 5's most exciting features to Ring 4 and older Ring 3
It arrives among several other changes to your wearable
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TechNew Oura Ring 4 rival revealed with one-of-a-kind feature and 150 days of battery life
You can add your wallet and keys to this smart ring
Your WhatsApp messages could self-destruct with Mission Impossible-style update
The feature has been spotted in testing for both Android and iPhone
