Connectivity & Digital
eSIMs, roaming, data sizing, and the digital kit that keeps a trip working — decided before you land, not at the airport.
esim · roaming · data
What this pillar covers
- eSIM vs roaming vs a local SIM — what each one actually costs you in money, time and friction.
- Data sizing — how much you really need, and why the honest answer is usually smaller than the plans push you toward.
- The digital kit — offline maps, adapters, and the settings worth changing before you leave.
Why the comparison you have already read is probably biased
Most pages ranking for “best eSIM” are published by companies that sell eSIMs. That does not make them wrong, but it does mean the framing was chosen for you: roaming is the villain, the eSIM is the hero, and the honest middle ground — when roaming is perfectly fine — rarely gets written.
How to use this pillar
- Start with the eSIM vs roaming guide — the mechanics of billing, expiry and coverage.
- Then size your data — a short, practical estimate for a normal trip.
- Then set up offline maps and an adapter — cheap insurance against everything else failing.
What this pillar will not do
It will not claim to have tested a dozen eSIMs across a dozen countries. That genre is mostly affiliate-driven and rarely reproducible. What it will do is explain how the products work, so the choice is yours rather than the vendor’s.
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