My buddy and I are landing in LV soon and and need to get a couple of SIM cards. I was wondering what are best options and where to buy. We will need the following. A, I will need a SIM for a smart phone with some data included in the package B, My buddy will just need a SIM and about 10usd of credit to make/receive calls as required. I look on the carriers websites and am I right to understand I buy a sim, plus the relevant amount of credit then once I top up I can pick the plan I need (eg data). Also whats the lowest denominations of credit and from where can one buy credit. I have read about READY SIM which sounds ideal however there are very mixed reviews about it on Amazon.