Do i have to pass a credit check to get a new iphone contract?

It depends on how old you are, if you have previously had a contract with the cellular provider, and how much your monthly income is. In most cases, the answer is yes, they will perform a credit check, and you need to pass the credit check in order to receive the new phone. If you have an existing contract with the provider, chances are they will not run a new credit check. It really varies from store to store and provider to provider.