A:AnswerYou do not get GB w a SIM card - the SIM card is used to get you on the Boost network.
You get a GB data plan from Boost. They have a variety of plans - different data amounts per month at varying rates of dollars per month.
Look for deals when can...I was able to get an unlimited monthly plan (really 35GB per month before throttling) for 25$ when I used my own compatible UNlocked phone w a Boost SIM card.
A:AnswerDepends...did you go to Boost Mobile and verify your phone is compatible with their system first? For example, I had a Samsung S7 Edge and it wasn't compatible on their network. I purchased a Note 9 and it was compatible. You need to check with Boost Mobile and verify your phone model.
A:AnswerCall the boost Mobile customer service and walk thru it with them. You will be doing this anyway if you are keeping your current phone number and or transferring data from your phone.