My brother who absolutely swears by not updating his iPhone to iOS 11 for the same reasons but then again hes hanging out for the "next" iphone which will launch with ios 12 *shrugs

Anyway I can ask him if he wants to sell it. what I know its a 128gb 7 Plus around a year old from memory

Did you have a price in mind I can throw at him

if its of any help I have an old unopened 5s, not sure what that came with though?