Does my WestESIM for the US function automatically in Canada?

Not necessarily. While Canada and the United States share a border, telecommunication systems are distinct. A WestESIM plan specifically designed for the USA typically covers only that region. If your travel plans include both countries, we recommend selecting a WestESIM regional plan that explicitly covers North America (USA and Canada), or a specific Canada plan if your journey is exclusive to Canada. This ensures continuous, high-performance connectivity whether you are in Vancouver or New York.