The ETravelSim Argentina eSIM runs on Movistar, one of Argentina's three major operators alongside Claro and Personal. Movistar has strong urban coverage across Buenos Aires, Córdoba, Mendoza, Rosario, and Mar del Plata, and reasonable coverage in tourist-heavy regions like Mendoza wine country and the Patagonian lake district. Major eSIM providers including Airalo, Saily, and Holafly also use Movistar in Argentina — so the underlying network is the same as the established players, while the price point on this page is notably lower.