A:AnswerMy understanding is that 5G in the title just means it is 5G capable. Your phone is going to connect to whatever signal it can get (3G, LTE, 5G, etc.). Assuming Ring is for the Ring cameras; if your apps are backed up to iCloud, you should be able to restore from there - Apple has improved the transferring of data from one device to another on initial setup of new device.
A:AnswerYou get the most amount of money for your trade currently from Verizon if you return the phone to Verizon you can still purchase it at Best Buy. Put the phone in the cart like you're going to buy it and it will ask you about your trade fill out that information and you will see the exact price.
FYI I believe on the 12 pro it is approximately $1000 if it is just an iPhone 12 I think you get $700 Keep in mind this is from Verizon not from Bestbuy so you will have to mail your phone or bring your phone to a Verizon store in order to get the amount I'm talking about. You can still purchase the phone at Best Buy. just keep your paperwork.
A:AnswerIt depends on your carrier plan at the time of exchange and a SWAG would be $200-$500 DEPENDING ON THE MODEL, memory, etc. Check with your carrier as they incentivize to "upgrade" the plans and charge a bit more to, for example, to go to 5G in the 5G capable phones.
A:AnswerIf you were talking about AppleCare that's a different matter entirely. I don't know about insurance but I know that total tag is $199 a year and that's how we pay for it. I cannot recommend total tech highly enough. They have done a great job for us.