ZDNET's key takeaways Your AirPods can detect when you've fallen asleep and pause your media.The AirPods likely use an accelerometer, not a heart rate sensor, to detect when you've fallen asleep.The ...

Cut through the noise. Learn which smartwatch metrics actually matter – and how to use them to level up your training without the overwhelm. In Part 1, we broke down how smartwatches gather data ...