The Field Notes

Guides and comparisons, so you don't have to learn any of this the hard way.

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2026-07-05 · eSIM On The Go Team
The 2026 Backpacker's Guide to Never Losing Data Again
Multi-country trip? Here's how to think about regional bundles vs. buying a fresh eSIM at every border.
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2026-06-18 · eSIM On The Go Team
Japan eSIM Guide: Which Plan Actually Gets You Signal on the Bullet Train
Not every eSIM handles Japan's rail tunnels and rural stretches equally. Here's what to look for.
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2026-06-02 · eSIM On The Go Team
How eSIMs Actually Work (And Why They Beat Roaming)
No tray, no shop line, no surprise roaming bill. Here's what's actually happening when you scan that QR code.
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