A:AnswerThe insurance company that TMobile uses will still cover it if you transfer it to TMobile and pay for the insurance coverage. I did the same thing last year with the pixel when I bought it and used it on TMobile network. Unfortunately, I did drop my pixel and cracked the screen so I did verify it was covered. You just have to pay the deductible.
A:AnswerYou will not able to do that. This is a Verizon based phone however you could purchase it at full retail value then take it as an "unlocked" device to a different carrier.
A:AnswerThis phone can be used on other carriers. The only difference is the Verizon phone bootloader is locked (no custom android images can be used, no rooting the phone) and may come with a few Verizon applications (likely able to be uninstalled).
A:AnswerDue to not knowing your exact location or carrier refer to willmyphonework.net This website will allow you to determine the answer based on which carrier you have in Brazil. The Pixel 2 is not yet listed on the website but the Pixel seems to have decent working areas in Brazil, so the Pixel 2 should be just as good.
A:AnswerNot totally but you can get around it by putting down a massive down payment, when i went to get an s8 they said that i could pay all but 24 dollars of it up front (breaks down to 1 dollar a month) and then if i wanted to pay the rest of it off the first month