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Smartwatches and other wearables have moved far beyond just tracking your steps and heart rate. Many of today’s versions can monitor everything from sleep and skin temperature to respiratory rate, blood oxygen, heart rate variability and even alert you to possible signs of sleep apnea. If you took Big Tech’s marketing at face value, you might…

From tracking sleep and steps to monitoring heart rate, temperature and stress levels, wearable devices like smartwatches and rings are growing in popularity as wellness tools