When you join 1pMobile, we will send you a free SIM card in the post. Our triple SIM has all SIM types on one card. So whether you need a standard, micro or nano-sized SIM, you can just pop out the one you need. In order for your SIM to work, you will need to activate it. Once activated, it will work in any unlocked 2G, 3G or 4G phone.