One of the talk show hosts in the US (deleted the video I got on Whatsapp) did a test in New York street. They set up a table, told passersby that they would be allowed to check out the iPhone 7, that they have new technology that would transfer all their data and settings to the iPhone 7 so they could make a proper comparison. While the guy was talking and distracting the person, another guy in the background (behind the victim) merely cleaned / polished the victim's own phone, changed the back and handed it back as the new iPhone 7. Of course the results were edited, but many were oohing and aaahing about how much faster it was, how much crisper the display was, etc., all the while checking out their own phone. At the end, the guy tells the victim, just for this hour, you can trade in your old iphone and keep this new iPhone 7 with all your data for just $50. Many forked over the cash, one even went to a nearby ATM to get cash.