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The Oura Ring Gen3, currently down to $250, is widely regarded as one of the best and most innovative ... red LEDs measure blood oxygen levels while you sleep, green LEDs monitor heart rate ...

Smart rings are evolving at a rapid pace, and this latest version of the Oura Ring is an excellent choice if you want to ...

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It offered a whole host of health-tracking features, promising to monitor activity ... six of the most popular to find the best one. A smart ring is a lot like a smart watch - except you wear it on ...

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It is best for those who want to measure heart rate, blood oxygen levels, time spent in different sleep stages and overall sleep quality at night, and for those who want to track steps ...

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The Oura Ring tracks your health and sleep, without a bulky watch on your wrist. Here’s what to know before buying one.

Best hybrid fitness tracker The Withings ScanWatch (buy now) is a fitness tracker for analogue watch fans, the subtle ScanWatch will track everything from steps to oxygen saturation ... and Garmin’s ...

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