WHAT DOES BUY SELL TRADE USA MEAN?

If I utilize a three PAYG SIM in United states of america, will I nonetheless have entry to all the apps previously put in in my mobile phone with my Tesco cell amount? Would I be much better to receive an eSIM so I'm able to swap in between figures as required? I’m obtaining All of this tech speak a tad baffling…. Many thanks!Share listings wi