Setting up your Truly Roaming eSIM for Tokyo is simple and best done before you leave home. After purchasing online, you'll receive a QR code via email. Scan this code using your eSIM-compatible smartphone's settings (usually under 'Cellular' or 'Mobile Data') while you still have a stable internet connection. Crucially, do not activate the data plan until you land in Tokyo. This ensures you maximize your plan's validity and have immediate, reliable connectivity for work and navigation upon arrival.
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How do I set up my Truly Roaming eSIM for Tokyo before I arrive in Japan?
Updated May 30, 2026
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