Is international roaming to Panama included with my US mobile plan?

Travelers often assume that because Panama uses the US Dollar, it falls under US domestic mobile plans. This is a common misconception. Panama is an independent nation, and US carriers like AT&T, Verizon, or T-Mobile will typically charge substantial international roaming fees. These often come in the form of expensive 'Day Passes' or per-MB rates, quickly accumulating costs that far exceed the value of a WestESIM. Opting for WestESIM provides a cost-effective and transparent solution for high-speed data in Panama.