Traveling to the UK and wondering what is the best way to stay connected? Don't waste money on high roaming costs or slow overseas data roaming plans. The UK already has prepaid sim card deals with 70 GB data for about $25 USD! In this guide you will read everything you need to know about buying a prepaid sim card in the UK: which provider has the best 5G network, where to buy a prepaid sim card for the UK, up to date prices as per June 2023, is EU roaming included on prepaid UK sim cards, info about international and e-Sim cards for the UK and much more.