Looking for a health and fitness tracker that doesn't require you to wear a big, bulky watch? You can grab an Oura Ring 4 for just $249 from Amazon , a $100 break from the normal price. It's compatible with both iOS and Android apps, has a battery that last for days, and accurately tracks a ton of health data, from hiking and sleeping to period predictions and food intake.

Photograph: Simon Hill

Photograph: Simon Hill

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Oura

Ring 4 $349

Oura $399 $299 (25% off)

Amazon $349

Best Buy

This generation of Oura smart ring has a number of major improvements, but the biggest upgrade is to the overall wearability. The sensors have been recessed further into the body of the ring itself, which reduces the overall thickness considerably, and allowing for a w

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