Will I keep my own phone number?

Yes. A travel eSIM adds a second data line. Your home SIM and number stay active for calls and texts — just keep it as the default voice line.

When should I install the eSIM?

Install it on Wi-Fi before you travel, but only activate it (or let it connect) when you arrive, since most plans start counting from first network connection.

Can one eSIM cover several countries?

Yes — regional and global plans cover multiple countries. Check the exact coverage list matches every stop on your itinerary before buying.

What happens to unused data?

Most travel eSIM plans are use-it-or-lose-it and expire after a set number of days. Buy roughly what you need rather than a large plan you won’t finish.

Travel essentials

Stay connected with a travel eSIM

Get mobile data the moment you land — no physical SIM, no roaming fees. Buy an eSIM online, scan a QR code and you’re connected in minutes.

Where are you traveling?

Pick a provider below to see plans for your destination.

Airalo

The world’s largest eSIM store with affordable data plans in 200+ countries and regions.

Holafly

Unlimited-data eSIMs with 24/7 support, ideal for heavy users and long trips.

Plans provided by Airalo and Holafly

Global coverage

Data plans for 200+ destinations around the world.

Instant setup

Install before you fly and connect on arrival with a QR code.

No roaming fees

Pay a fixed price upfront and avoid surprise roaming charges.

A travel eSIM gives you mobile data the moment you land — no roaming bills, no hunting for a local SIM shop. This guide explains how eSIMs work, whether your phone supports one, how to install it, and how to pick the right plan.

What a travel eSIM actually is

An eSIM is a SIM card built into your phone that you activate by scanning a QR code instead of inserting plastic. A travel eSIM is simply a prepaid data plan for the country or region you’re visiting, loaded onto that built-in chip.

Because nothing is physical, you can buy and install it before you leave home and have working data the instant your plane lands — while your primary SIM and phone number stay exactly where they are.

Is your phone compatible?

Most phones released in the last few years support eSIM, but a handful of regional models do not, so it’s worth a ten-second check before you buy a plan.

iPhone XS/XR and newer support eSIM (some US iPhone 14+ models are eSIM-only).
Google Pixel 3 and newer, most recent Samsung Galaxy S and Note/Z models.
Dial *#06# — if you see an “EID” number, your device has an eSIM.
Your phone must also be carrier-unlocked to use a foreign eSIM.

How to install and activate an eSIM

Installation takes a couple of minutes and is best done on Wi-Fi before departure. Activation, however, usually starts the moment the eSIM connects to a network — so read the plan’s activation rules first.

Buy the plan for your destination and receive a QR code by email.
Open Settings → Mobile/Cellular → Add eSIM, then scan the QR code.
Label it (e.g. “Japan trip”) and keep your home SIM as the default for calls.
On arrival, set the travel eSIM as your data line and enable data roaming for it.

Choosing the right data plan

Buy for how you actually travel. Maps, messaging and the occasional search use very little; video streaming and hotspot use burn through data fast. A 24-hour trip of heavy navigation and photo backups is very different from two weeks of light use.

Light use (maps, chat, email): 1–3 GB per week is usually enough.
Regular use (social, browsing, some video): 5–10 GB per week.
Multi-country trips: pick a regional plan that covers every stop.
Check whether the plan includes a phone number — many are data-only.

eSIM vs physical SIM vs roaming

Roaming with your home carrier is the simplest but often the most expensive option. A local physical SIM can be cheapest for long stays but means swapping cards and getting a new number. A travel eSIM sits in between: near-instant, no card swap, and predictable prepaid pricing — ideal for most short and mid-length trips.

Stay connected while you map your journey

With data from the moment you land, you can log stops, check routes and back up photos on the go — then turn the whole trip into an animated map video with Travel Story Maker when you’re ready to share it.

Travel eSIM FAQ

Will I keep my own phone number?: Yes. A travel eSIM adds a second data line. Your home SIM and number stay active for calls and texts — just keep it as the default voice line.
When should I install the eSIM?: Install it on Wi-Fi before you travel, but only activate it (or let it connect) when you arrive, since most plans start counting from first network connection.
Can one eSIM cover several countries?: Yes — regional and global plans cover multiple countries. Check the exact coverage list matches every stop on your itinerary before buying.
What happens to unused data?: Most travel eSIM plans are use-it-or-lose-it and expire after a set number of days. Buy roughly what you need rather than a large plan you won’t finish.

This page contains affiliate links. We may earn a commission at no extra cost to you.