I'll be travelling down to North America, mainly from Chicago->wisconsin->LA->San fran and will be needing some sort of mobile data plan to stay in touch with family back home (e.g. for whatsapp, emails, instagram etc.). Is there any recommended plans or SIM card that allows me to travel around the US without having to switch SIM cards when I change states? I'm not familiar with the system and would like some advice!
I'll be in the US from 9th may-28th may, so that is about a month! I'm from Singapore, and my iPhone is not locked with any mobile carrier.