WorldSIM

WorldSIM is built for travelers who want calling as well as data connectivity. The UK-based provider sells both SIM and eSIM options for Asia and other regions, with calling plans included as standard. A UK number comes by default, handy for staying reachable at home.

The calling feature sets it apart from data-only services. Travelers who need to make calls during their trip, not just receive them, find this especially useful when coordinating plans or handling business.