A:AnswerWhoever is listing this product should have a SPECIFICATIONS list, they are your best resource. If not, copy product name and paste it onto APPLE's websites search box.
A:AnswerIf you try to use their service with your phone they will have you download the app to your phone which will lock your phone to their service and they will not ever unlock you
A:AnswerYes, you can. But why would you need insurance for an old phone which Apple is slowing down all old iPhones? I do not think is worth it. I recently bought a refurb 6s 64GB and the battery runs out juice so fast! I should've bought a galaxy S8.