ECG sensors on Apple Watches are able to predict stress levels.

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Apple Watch Series 6's ECG sensor generates accurate data, including heart acceleration and deceleration.

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According to the model, stress predictors have "high precision," but low recall.

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With Apple Watch, stress predictions could be more accurate, and more data points could be incorporated into stress models.

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As the device has additional health information such as sleep and activity.

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With Apple Watch, mental health care could be provided, including breathing exercises to offset stress signals and responding early to mental health changes.

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Redmi Watch 3 & Band 2 launch in China

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