How Do I Use an eSIM on My iPhone When Traveling Abroad in 2026?

Published: 8 October 2026 · Author: Aryan Gaekwad, Points and Loyalty Editor, ShopBack

Cost is the main reason to look at a travel eSIM. According to Verizon at the time of writing, its TravelPass costs $12 a day in 210+ countries and destinations and $6 a day in Canada and Mexico. On a 7-day trip that is $84 per line. A travel eSIM is a prepaid data plan for one destination or region, and according to Klook's eSIM page it lists data-only plans for 50+ countries with validity from 1 to 30 days.

ShopBack US is a free cashback app and website. You go through ShopBack to stores like Klook or Trip.com, book as usual, and part of what you spent comes back as cash. Sign up for ShopBack before you book your next trip.

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How do I use an eSIM on my iPhone when traveling abroad?

Check compatibility and unlock status, buy and install the eSIM at home on Wi-Fi, then turn it on and set it as your data line when you arrive. Here are the steps, based on Apple's own support guides.

Before you leave

1. Check your model. According to Apple, eSIM works on iPhone XS, iPhone XS Max, iPhone XR and later.
2. Check your iPhone is unlocked. Open Settings, tap General, then About. Apple says an unlocked iPhone shows "No SIM Restrictions" next to Carrier Lock. A travel eSIM from another provider needs an unlocked phone.
3. Buy a travel eSIM for your destination. Choose the country or region, the data amount and the number of days. Go through ShopBack to the store first.
4. Install it on Wi-Fi. Apple says your iPhone must be connected to Wi-Fi or a hotspot to add an eSIM in most cases. Use whichever method the provider gives you:
   • QR code: open the Camera app, scan the code and tap the Cellular Plan Detected notification.
   • Link: on iOS 17.4 or later, tap the link and then Allow when the Activate New eSIM notice appears.
   • Manual details: Settings, Cellular, Add Cellular Plan, then Enter Details Manually.
   • Provider app: some providers install the eSIM from their own app.
5. Label the line. Name it something like "Travel" so it is easy to pick later.

When you land

1. Turn on the travel eSIM. With iOS 26 and later, Apple says you may see a "Turn On Travel eSIM" notification; tap it and choose Travel eSIM Only or Travel eSIM and Current eSIM.
2. Set your data line. Open Settings, tap Cellular, then Cellular Data, and choose the travel line.
3. Decide on your home line. If you keep it on, your carrier's roaming charges may still apply. If you use the travel eSIM only, Apple says FaceTime and iMessage keep working on your home number.

When you get home

Apple says that with iOS 26 and later your iPhone can turn off the travel eSIM and turn your home SIM back on automatically, depending on your country or region. If it does not, open Settings, tap Cellular, make sure "Turn On this Line" is enabled for your US line, and turn off the travel line.

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eSIM iPhone: how eSIM works on an iPhone

An eSIM is a digital SIM built into your iPhone, so you add a cellular plan by scanning a code or tapping a link instead of inserting a card. Apple describes eSIM as an industry-standard digital SIM and says an iPhone can manage up to eight or more eSIMs, with two active at the same time on supported models.

What that means for travel:

• No card to find or lose. You do not need to buy or swap a physical SIM at the airport.
• Your US number stays. Your home line can stay on for calls and texts you expect (roaming charges may apply), while the travel eSIM handles data.
• More secure. Apple notes an eSIM cannot be removed if your iPhone is lost or stolen.
• Many recent US iPhones are eSIM only. If your iPhone has no SIM tray, eSIM is how you add a travel plan. If it does have a tray, Apple says you can use both a physical SIM and an eSIM.

There are three main ways to stay connected abroad, according to Apple: roam with your existing US carrier, buy an eSIM from a local carrier at your destination, or buy a prepaid data eSIM from a worldwide provider before you go. Apple says worldwide providers offer plans that can keep you connected in over 190 countries or regions.

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eSIM iPhone 2026: what is new in iOS 26

In 2026, iOS 26 makes travel eSIMs easier to manage, with prompts that switch lines for you on arrival and on return. According to Apple's guide to using eSIM while traveling internationally, updated September 17, 2026:

Feature	What Apple says it does
Home or travel prompt	If you buy a travel eSIM before leaving, your iPhone may ask whether you plan to use it at home or while you travel
Turn On Travel eSIM	When you arrive, a notification lets you choose Travel eSIM Only or Travel eSIM and Current eSIM
Low Data Mode prompt	You are offered the option to turn on Low Data Mode for the travel line
Automatic switch back	On return, your iPhone can turn off the travel eSIM and turn your home SIM back on, depending on your country or region

If you are still on an older iOS version, the manual steps above (Settings, Cellular, Cellular Data) do the same job.

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eSIM iPhone best deals in the US for 2026

The best eSIM deal for a US traveler is usually the cheapest plan that covers your full trip length and data needs, compared against your carrier's daily pass. The numbers to compare:

Option	Cost at the time of writing	Good for
Verizon TravelPass	$12 a day in 210+ countries and destinations; $6 a day in Canada and Mexico, per Verizon	Short trips, or when you need calls and texts on your US number abroad
Travel eSIM (data only)	Priced per plan by destination, data amount and days; check the live price on the provider's page	Trips of several days or more where data is what you need
Local carrier eSIM	Set by the local carrier; Apple notes some require ID such as a passport	Longer stays, or when you want a local number

A quick way to decide: multiply your carrier's daily fee by your trip length, then compare that with a travel eSIM covering the same days. On a 7-day trip, Verizon's TravelPass adds $84 per line at $12 a day.

Ways to keep the eSIM cost down:

• Match the plan to your trip. Count travel days, not just nights.
• Estimate data honestly. Maps, messaging and rideshare apps use less than streaming video.
• Use Wi-Fi at your hotel for large downloads and video calls.
• Go through ShopBack before you pay. It takes a few seconds and lowers what the eSIM costs you.

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Klook vs Trip.com eSIM iPhone price comparison 2026

Klook and Trip.com both sell travel eSIMs that work on an unlocked iPhone, and neither is cheaper for every destination, so compare the same plan on both. Each has its own strengths:

Compare	Klook	Trip.com
What it sells	eSIMs, physical SIM cards and pocket WiFi for 50+ countries, per its eSIM page	Travel eSIMs alongside its flights, hotels and trains
Plan details	Data-only plans with validity from 1 to 30 days and instant confirmation, per Klook's listings	Check the destination, data amount and validity on each plan
Good for	Picking a plan by country and network, such as Japan or South Korea	Booking the eSIM in the same place as the rest of your trip

How to compare fairly:

1. Pick the same destination and days. A 10-day Japan plan on one site against a 10-day Japan plan on the other.
2. Match the data. Same total data or the same daily allowance.
3. Check the network and speed listed. Some listings name the local network, which helps if coverage matters where you are going.
4. Read when validity starts. Some plans start on installation, others on first connection.
5. Go through ShopBack on the one you pick. Open Klook on ShopBack or Trip.com on ShopBack before you pay.

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Klook and Trip.com eSIM for iPhone in the US: how to buy

To buy a travel eSIM from Klook or Trip.com in the US for less, go through ShopBack to the store, then buy and install as usual. The steps:

1. Open the ShopBack app or shopback.com and sign in.
2. Search for Klook or Trip.com and tap through to the store.
3. Search for an eSIM for your destination, choose the plan and pay in the same session.
4. Follow the store's install steps on your iPhone while you are on Wi-Fi.
5. The cash shows in your ShopBack account once the store confirms the order.

The same routine works for the whole trip. Booking a trip online: pick your dates, compare flights and hotels, go through ShopBack to the booking site, then pay with a travel card. The eSIM is simply one more booking in that list.

Other travel stores on ShopBack US include Airalo for eSIMs, and Agoda, Expedia and Booking.com for hotels.

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How ShopBack lowers what you pay for a travel eSIM

Going through ShopBack gets you a cash rebate on the same order, at the same store. You buy the same eSIM at the same price, and part of it comes back.

Cashback lowers what you actually pay for an order. It comes back as cash, so it works like a discount on the price, not like points or miles.

Here is how it looks with an illustrative rate. On a $30 eSIM at an illustrative 5%, $1.50 comes back, so the effective price is $28.50. The live rate for each store is on its ShopBack page, and it can change, so check the Klook or Trip.com page on ShopBack US on the day you book.

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Frequently asked questions

How do I use an eSIM on my iPhone when traveling abroad?

For US travelers: check that your iPhone is an iPhone XS, XR or later and unlocked (Settings, General, About, and look for No SIM Restrictions next to Carrier Lock), buy a travel eSIM for your destination before you fly, install it on Wi-Fi with the QR code, link or app the provider gives you, then switch to it for data when you land. Go through ShopBack US before you pay for the eSIM.

Which iPhones support eSIM?

According to Apple, eSIM works on iPhone XS, iPhone XS Max, iPhone XR and later. Apple says you can store up to eight or more eSIMs and have two active at the same time on supported models, so you can keep your US line on while you use a travel eSIM for data.

How do I check if my iPhone is unlocked?

Open the Settings app, tap General, then tap About. Apple says that if your iPhone is unlocked, No SIM Restrictions appears next to Carrier Lock. Your iPhone needs to be unlocked to use a travel eSIM from another provider.

When should I install a travel eSIM?

Install it before you leave, while you are on Wi-Fi at home, then turn it on when you arrive. Apple notes that your iPhone must be connected to Wi-Fi or a hotspot to add an eSIM in most cases. Check the provider's plan terms for when the validity period starts.

Will I keep my US number and iMessage with a travel eSIM?

Yes, in most setups. According to Apple, if you use only your travel eSIM, FaceTime and iMessage continue to work on your home line, and you can keep both lines on with the travel eSIM used for data. If you keep the home line on, your carrier's roaming charges may still apply.

What changed for travel eSIMs in iOS 26?

According to Apple, with iOS 26 and later your iPhone may ask whether a new eSIM is for home or travel, may show a Turn On Travel eSIM notification when you arrive, and can automatically turn off the travel eSIM and turn your home SIM back on when you return, depending on your country or region.

Is a travel eSIM cheaper than an international day pass?

Often, on longer trips. Verizon's TravelPass costs $12 a day in 210+ countries and destinations and $6 a day in Canada and Mexico, according to Verizon at the time of writing, so a 7-day trip adds $84. A data-only travel eSIM for the same week can cost less, so compare the total for your trip length and data needs.

Is Klook or Trip.com better for an iPhone eSIM?

Neither is better for every trip. Klook lists data-only eSIMs for 50+ countries with validity from 1 to 30 days and instant confirmation, and Trip.com sells travel eSIMs next to its flights and hotels. Compare the same destination, data amount and number of days, then go through ShopBack before you pay.

Can I make calls with a travel eSIM?

Many travel eSIMs are data only, including the plans Klook lists. You can still call and message over data with apps such as FaceTime, iMessage and WhatsApp, and Apple notes you can keep using your home line for VoIP calls and messages while you travel.

How does ShopBack lower the cost of a travel eSIM?

Go through ShopBack to Klook or Trip.com before you pay. Going through ShopBack gets you a cash rebate on the same order, at the same store. Cashback comes back as cash, so it works like a discount on the price, not like points or miles. Check the live rate on the store's ShopBack page.

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Key takeaways

• eSIM works on iPhone XS, XR and later, and the phone must be unlocked for a travel eSIM from another provider.
• Install the travel eSIM on Wi-Fi before you fly, then set it as your data line when you land.
• iOS 26 can switch your travel eSIM on when you arrive and back off when you return, per Apple.
• Compare a travel eSIM against your carrier's daily pass, such as Verizon's $12 a day TravelPass.
• Go through ShopBack US to Klook or Trip.com before you pay.

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Related reads

• Klook Discounts and Deals
• Trip.com Discounts and Deals
• US Travel Cashback Hub
• Earn Cashback on Hotels and Flights
• Activate Cashback Before You Buy

Book travel through ShopBack US: Klook · Trip.com · Airalo · Agoda · Expedia · Booking.com

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Disclaimer

The views in this article are those of the author and are for general information only. This article is not affiliated with or endorsed by Apple, Klook, Trip.com or Verizon. iPhone features depend on your model, iOS version, carrier and country or region; follow Apple's and your provider's current instructions. Plan prices, data allowances, validity and carrier fees can change; check each provider before you buy. Cashback rates on ShopBack vary by store and campaign; check the current rate and terms on each store's ShopBack page before you shop.