The Apple Watch has many different sensors to help track your activity levels, sleep, and more. When it emits a red light, it is targetting one specific metric.
From radio labs to anechoic chambers that look like Elsa's castle, here's a rare look at how Apple tests Bluetooth, Wi-Fi, 5G ...
Some, and perhaps all, Apple Watch Ultra 3 owners are having trouble setting up cellular service on the smartwatch. And ...
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