How to measure Blood Oxygen saturation (SpO2) level using smartwatches and fitness bands: A brand-wise guide

​Blood Oxygen level (SpO2) has become a critical factor during this ongoing pandemic. Keep the health concerns in mind, several smart band and watchmakers have started implementing the feature on their devices. So, if you own a smartwatch or fitness band that comes with the SpO2 measurement feature and wondering how to use it. Then, here’s our brand-wise guide on how to measure SpO2 level on them. Read on:
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