A 2020 set of patents recommend Apple is studying Contact ID and an underneath-display digital camera with the Apple Watch. Apple describes a aspect button with the built-in ‌Contact ID‌ fingerprint sensor that might be employed for user identification and device unlocking. It's also unclear what the rugged "Explorer Edition" http://balloon-blowing-machine07406.bloggactif.com/16228858/a-review-of-apple-watch-series-8