Portuguese Developer Reviews 4 eSIM Providers Across 3 Continents

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A Portuguese software developer who spent 18 months travelling across Latin America, Southeast Asia, and Africa tested four eSIM and local SIM options to find the most reliable and cost-effective solutions for European travellers. He found Airalo to be the safest all-round choice for short trips due to its wide coverage and ease of use, while local physical SIMs in countries like Argentina and Thailand offered the cheapest data rates. Brazilian provider Yesiim stood out for its extremely low pricing — around €4.50 for a 30-day plan in Brazil — and surprisingly responsive customer support via WhatsApp. However, Yesiim's payment system relies on Brazilian reais and the Pix payment method, requiring currency conversion tools like Wise for European users. The developer concluded that the best eSIM strategy depends on trip length and destination, recommending Airalo for Europe and North America, Yesiim for South America, and local SIMs for extended stays in Southeast Asia.

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