Clearly and obviously not an Iphone, its a droid wanna be knock off. Just look at the menu system when he/she shows the "camera roll" and also since when did the button change to take a picture to "Ok". I have ran the new IOS10 and none of those features or looks are correct.
From the article...
The smartphone appears to be running Apple's internal testing software SwitchBoard, rather than a public version of iOS.