Oura Ring 4 vs 5 sleep tracker: Is the upgrade worth it?
The Oura Ring 5 mixes new sensor technology with a sleeker design — but how does its sleep tracking compare to its predecessor's? Here's how to know if you should upgrade from the Oura Ring 4.
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- T2Oura Ring 4 vs 5 sleep tracker: Is the upgrade worth it?TechRadar / Tom's Guide / PCWorld / Pocket-lint / Stuff