I have an HTC One M7 that was bought on a 24 month contract that expires in November. However, I would like to get the new iPhone (unlocked) from Apple. Now I am wondering if I can buy the phone (unlocked) from Apple and activate on my current line. I know the HTC One M7 uses micro SIM and the iPhone 6s uses nano SIM.
Since my SIM card would be incompatible with the new device, is there a way to receive a new SIM from Verizon for an unlocked phone? Or do I have to purchase the prepaid line SIM card? My goal is to add the new iPhone to the existing contract, on the same line I have been using, without having to buy the phone through Verizon, which I can't until November when my contract is due for renewal. Or is there a way that I can get an early upgrade to the new iPhone 6s through Verizon?
Also my HTC One M7 is not in the best condition so I doubt I'd get anything for a trade, i.e. camera burnt out from heat damage from the phone itself (great design there) and the aluminum has scratches on it, no screen damage though.