Hi, I have an iPhone 5 16gb on Verizon and just bought a used s3 online. I want to use the s3 for a while and see if I like it better/worse than the iPhone. Does anybody know what process I will need to take in order to get my Verizon service working on the s3? I know I can go online to enter the new IMEI number of the s3, but what about the sim card? Do I need to remove the sim card from the 5 and if I do will it fit in the s3? Thanks for anyone that can help!!