eSIM

A regional eSIM covers all of Europe on one plan. Our picks, the UK and Switzerland inclusion trap, and when a single-country plan beats regional pricing.

An eSIM is a SIM your phone already has, waiting to be switched on. How it works, what it fixes for travellers, and the checks to do before you buy.

Bali coverage is a one-carrier story: Telkomsel reaches where Indosat and XL don’t. Which eSIMs ride it, which don’t, and what that means for your itinerary.

eSIM showing no service abroad? Do not delete it. This checklist fixes the most common causes in minutes, starting with the setting most people miss.

Viettel covers the Vietnam the other networks don’t: the mountains, the coast roads, the loops. Which eSIMs ride it, our picks by itinerary, and the setup notes.

There is no single best travel eSIM; the right pick changes by destination. How Airalo, Saily, Holafly and Nomad differ, and which one fits your trip.

US travel eSIMs ride T-Mobile or AT&T. Which network fits city trips vs road trips, our provider picks, and the rural-coverage reality nobody mentions.

Airalo vs Holafly: fixed data or unlimited? The honest comparison, including the daily fair-use cap Holafly understates, and which one fits your trip.

Four situations where a different eSIM beats Airalo: price per GB, unlimited data, app and security, and destinations where Airalo resells the weaker network.

Airalo is the safe default eSIM, but rarely the cheapest, and coverage depends on the network it resells. Our honest review, including the Bali trap.