In a video, Hilsenteger shows off a mock-up of the iPhone 7 Plus or Pro, which he said was sent to him exclusively by a Chinese audio company called Besound. The bluish-purple chassis seems to be slightly thinner than the iPhone 6S Plus, with other alterations like a slimmer font, a different antenna set-up, and a new docking option.
Apple did not immediately respond to CNBC's request to verify the features. It's unclear how Hilsenteger was able to get the mock-up and how accurate the prototype is.
At more than 5 million subscribers, Unbox Therapy came to fame after a video showed how much force it would take to bend an iPhone 6 Plus, a viral phenomenon dubbed "bendgate."
The full video, which has over 1 million views, is below.