APPLE INSIDER
Apple is investigating making essential Apple Watch components, such as the display, do double duty by incorporating Wi-Fi, Bluetooth, GPS, UWB, or other antenna functions.
Future Apple Watches may have improved Wi-Fi antennas underneath the displayIf you can’t make Apple Watch components any smaller, maybe you can make each of them do more to earn their place in the device. Apple has recently been looking at how to make the Apple Watch battery replace the haptic engine, and now it’s researching ways to incorporate antenna into multiple different parts of the watch.
Source: APPLE INSIDER