Travel guide
eSIM vs international roaming vs local SIM: which is best for your trip?
In short
for most travelers, an eSIM is the cheapest and easiest option. It usually costs less than international roaming, you don’t have to hunt for a shop at the airport as you would for a local SIM, and your home number keeps working for texts and WhatsApp. Each option still has situations where it makes sense, and that’s what this guide explains.
Before every trip, travelers ask the same question: how will I get online when I land? The three most common options are turning on international roaming with your carrier, buying a local SIM in the country you’re visiting, or using a travel eSIM. In this guide we compare them on cost, ease of use, keeping your number, and flexibility when moving between countries.
Option 1: International roaming with your carrier
International roaming is the simplest option in theory: you travel with your current SIM and your phone automatically connects to a partner network in the country you visit. But that simplicity has a price. Roaming packages are often far more expensive than local internet rates, and using data without a package can end with a large bill when you get home.
Pros
No setup needed, and your number keeps working for calls and texts.
Cons
Usually expensive, roaming data allowances are limited, and prices vary from country to country depending on your carrier’s agreements.
When it fits: Very short trips where you need calls on your home number more than internet, or when your carrier offers a roaming package that suits your destination.
Option 2: A local SIM card
A local SIM is a physical SIM card you buy from a carrier in the country you’re visiting. Local internet prices can be low, but getting one takes time and effort: finding a shop or kiosk at the airport, waiting in line, showing your passport in many countries, then swapping out your original SIM for the new one.
Pros
Local prices, and a local phone number you may need for bookings.
Cons
Time and effort on arrival, the risk of losing your original SIM, missing messages to your home number (such as bank verification codes) while it’s removed, and needing a new SIM in every country.
When it fits: If you’ll stay a long time in one country and need a local number to deal with local services.
Option 3: A travel eSIM
An eSIM is a digital SIM built into your phone. You buy the plan online and install it by scanning a QR code in minutes, before you even leave home. When you land, it connects to a local network at your destination, while your original SIM stays in the phone to receive texts and calls.
Pros
Quick activation before you travel, usually cheaper than roaming, you keep your number and WhatsApp account, and you can choose a regional plan that covers several countries.
Cons
You need a phone that supports eSIM and isn’t carrier-locked, and most plans are data-only, although some plans include calls.
When it fits: Most leisure and business trips, especially if you’ll visit more than one country or want to be connected the moment you land.
Quick comparison of the three options
| Criteria | International roaming | Local SIM | Travel eSIM |
|---|---|---|---|
| Cost | Usually high | Low | Low to medium |
| Activation time | Instant | Requires a shop visit | Minutes, before you travel |
| Keep your number | Yes | No, while the SIM is removed | Yes |
| Multi-country travel | Depends on carrier | One SIM per country | One regional plan |
| Effort on arrival | None | High | None |
How to choose the right option for your trip
Ask yourself three questions: how many days will you travel? Will you visit one country or several? And do you need a local number? If your trip is for leisure or work and lasts days or weeks, an eSIM is usually the best fit. If you’ll settle in one country for a long time and need a local number, consider a local SIM. Keep roaming for cases where you need frequent calls on your home number.
Before you buy, check that your phone supports eSIM on our device compatibility page, then choose your plan based on your destination and trip length. If you’re not sure how much data you need, read our guide to estimating travel data usage.
Frequently asked questions
Is an eSIM cheaper than international roaming?
In most cases, yes, because eSIM plans are priced on data rates at your destination, while roaming packages add the cost of agreements between carriers. Always compare the price per GB of both options before you travel.
Can I use an eSIM and my original SIM at the same time?
Yes. Most modern phones can run two lines at once: the eSIM for internet, and your original SIM for calls and texts.
What if my trip covers several countries?
Choose a regional plan, such as a GCC plan or a European Union plan. It covers several countries with one eSIM, so you don’t need to buy a new plan at every border.
In this article
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