You can look at going rates and averages on Swappa.com.How's the resale on these things holding up after, say, 1 year, 2 years, etc.?
To give you an idea, here's an unlocked iPhone 6s Plus: https://swappa.com/prices/apple-iphone-6s-plus-a1634-unlocked/usHow's the resale on these things holding up after, say, 1 year, 2 years, etc.?
To give you an idea, here's an unlocked iPhone 6s Plus: https://swappa.com/prices/apple-iphone-6s-plus-a1634-unlocked/us
Unlocked iPhone 6s: https://swappa.com/prices/apple-iphone-6s-a1633-unlocked/us
Unlocked iPhone 6 Plus:
https://swappa.com/prices/apple-iphone-6-plus-a1524/us
Unlocked iPhone 6: https://swappa.com/prices/apple-iphone-6-a1586/us