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The Oura Ring 4 is a titanium smart ring that tracks sleep, heart rate, blood oxygen and readiness from a finger, with no screen. Its main draw is comfort and accuracy: the inner sensors sit flatter than before, and Oura's app turns the data into daily readiness and sleep scores. Reviewers rate sleep and recovery tracking highly and find the ring easy to wear overnight. The trade-offs are a subscription for full insights, no GPS of its own, and a form factor that does less than a smartwatch during workouts.
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Availability unknownSold by azing_electronics (99.7% positive, 151,100 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknownSold by sed_4447 (0% positive, 0 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $249.00 on Nov 9 at Walmart. Tracked across 3 stores since Nov 9.
Owners praise the Oura Ring 4 for sleep tracking and all-day comfort, and many say the readiness score changes how they plan their days. Criticism centers on the subscription needed for full features and on occasional gaps in workout tracking.
