A:AnswerThe screen size is 5.8 inches. It is smaller with overall dimensions of 5.65 x 2.79 x 0.30 in to the iPhone 7+ with dimensions of 6.23 x 3.07 x 0.29 in.
A:AnswerYou can get the trade in on a gift card, which you could use to buy the device outright (through best buy), but the monthly installments go through Verizon so there isn't really a way to apply the trade in to Verizon, unless you worked it where you could use the gift card as a downpayment.
A:AnswerNo. Trade in is through Verizon or whatever carrier you are using. Bestbuy can help with the initial online claim to get you started. With Verizon, they will send you a prepaid shipping envelope to ship your phone in.
A:AnswerHonestly, keep your 8 plus, I had the 7 plus and held out for the X but now that I have it, I am having a tough time dealing with the smaller screen.