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.
Stepping into the padded vault felt like entering some kind of portal. The sterile white room was lined with jagged, pyramid-shaped foam spires; a cross between a recording studio and some kind of icicle torture chamber straight out of Elsa's castle ... [7023 chars]