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https://9to5mac.com/2015/04/10/tim-cook-says-apple-watch-orders-are-great-in-visit-to-palo-alto-apple-store/

do you guys remember that?

This could potentially mean that Apple was already testing the LTE version of the watch all the way back in 2015...

Makes you think what they have up their sleeves today that will be released years into the future.

Yes, I do remember this. I Watches that interview the day of the Apple Watch preorders went live. He was commenting on how strong the preorders were successful and the future of the Apple Watch. But I completely agree, he likely was already testing LTE during that time frame. The red dot kind of confirms this.
 
For sure. You nailed it.
I also think they're working on Face ID for a few years yet.
 
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