Why Does Apple Watch Glow Red

It’s An Advanced Apple Feature That Helps.

This site contains user submitted content, comments and opinions and is for informational purposes only. Web here's how to turn it on. If your apple watch gets too hot, it will give off a red glow to warn you that.

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For more details, check out the information. Web the most common reason why apple watches glow red is due to overheating. Web if so, this light is used to help measure your heart rate and blood oxygen (if using an apple watch series 6 or series 7).

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Web the red glow on the apple watch at night is caused by an infrared sensor located at the heart of the watch, which is used to detect the wearer’s pulse. Web the red glow on the back of your apple watch indicates that your watch is measuring the amount of oxygen in your blood.