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The Oura Ring 4 is a screenless health tracker worn on the finger. It reads heart rate, blood oxygen, temperature and movement to score sleep, readiness and activity, and it syncs to iOS and Android over Bluetooth. The fourth generation moves to recessed sensors and a titanium body, which Oura says improves comfort and signal accuracy over the Ring 3. Reviewers rate it highly for sleep insight and everyday wearability, but many note the subscription needed for full analysis and the bulk of a ring on smaller hands.
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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 r3newtech (99.8% positive, 37,600 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 ja-9305 (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: $279.00 on Nov 9 at Walmart. Tracked across 1 store since Nov 9.
Owners praise the Oura Ring 4 for sleep tracking, comfort and battery life, and many call it the best sleep tracker they have used. Criticism centers on the membership fee and on sizing and fit issues.
