Apple Watch X could add drowning detection - Wareable
Briefly

The smartwatch includes a swimming analytics application that can determine limb coordination, swimming style, and other metrics to classify a swimmer's behavior as regular or irregular while underwater, potentially sending out rescue signals.
If the wearer's 'arms are flailing above their head in a manner that is not indicative of swimming stroke,' the Apple Watch can detect irregular behavior using movement tracking, GPS, heart rate, and blood oxygen readings.
Read at Wareable
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