How Apple tests Bluetooth, Wi-Fi, 5G, and satellite connectivity on the Apple Watch, including using a Global Navigation Satellite System simulation room (Vanessa Hand Orellana/CNET)

Vanessa Hand Orellana / CNET:

How Apple tests Bluetooth, Wi-Fi, 5G, and satellite connectivity on the Apple Watch, including using a Global Navigation Satellite System simulation room  —  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 and satellite connectivity on the Apple Watch.