Apple’s patent application for watch bands with embedded antennas mentions the possibility of using an in-display fingerprint scanner for the Apple Watch
The patent was originally filed on May 1, 2018, and while it does mention that embedding flexible antennas into watch bands can open up room inside the watch for an in-display Touch ID feature, the application mostly discusses the use of these antennas to help the Apple Watch communicate wirelessly. For example, the document reads, “…some traditional portable electronic devices, particularly wearable electronic devices, have relatively limited functionality or are only able to perform a specialized set of functions or tasks. It can be desirable to provide a wearable electronics devices (sic), such as a watch, with wireless communication capabilities. The embodiments described herein are directed to a wearable device that provides wireless communication via an antenna within a band of a watch.”
Another illustration from the patent application
Of course, the Series 3, Series 4 and Series 5 Apple Watch GPS + Cellular models models can, even without a nearby iPhone, make/take calls, send or receive messages, use Siri to get directions and send iMessages, stream music, use Apple Maps, get the weather, track stock prices, use the Walkie-Talkie feature and more.