Where to sell new S5 and buy IPhone S6?

[Oxfordrichard]

Can anybody recommend a reputable place/site to sell my brand new Samsung S5 and buy an iPhone 6? The Samsung is too big for me and I didn't open the box until after the two week replacement window. Thank you.

[jeffkinn]

You can sell your phone on Ebay or using a recycling company. But here's the issue for you. I've just checked the price you're liable to get for an S5 and it's under £200. A new iPhone 6 is going to cost you considerably more than that  - they start at £539.