The 3rd generation Oura Smart Ring brings new features and sensors 
Oura’s Smart Ring just got a third version with new sensors and features. The most notable ones are the continuous heart tracking throughout the day thanks to the new optical heart rate sensor. The previous model only tracked your heart rate at night when you sleep. A monthly subscription plan for $6.99 is also available but those who pre-order will get six months for free.
The subscription, isn’t mandatory, but provides daily insights, personalized recommendations, and educational videos and audio.
The ring now employs seven health-tracking sensors including blood oxygen, but that…
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