Well, look at the big brain on Brad!
So, was your test successful? Did the photo of the Apple Watch have enough verisimilitude to fool the companion app? I'm guessing you didn't get very far in your test.
Here's the test I want to see: Once you have an actual Apple Watch in hand, try the pairing process. However, instead of showing it your new watch, you show it the photo. If it still pairs, I'll be convinced.
Simple mention of high IQ is so painful to some people so they start attacking. Early childhood trauma? Whatever.
I'm not here to convince you, just expressed my opinion. If you want to see that test then do it yourself. But the idea of a watch screen emitting invisible signals was so smart and technically feasible that I'm sure that's how pairing will work.
And yes, the photo had enough verisimilitude, that was a dumb question.