URL: https://esimworld.us/help/ Source: eSIM World (esimworld.us) Author: Nadezhda Semenova, entrepreneur, co-founder of the Trippy travel service, https://esimworld.us/author/ Updated: October 29, 2026 # Travel eSIM help: before you buy, before you fly, when you land and after the trip Before you buy, check that your phone is unlocked. On an iPhone, Settings → General → About should show "No SIM restrictions" next to Carrier Lock (checked on October 29, 2026, [Apple](https://support.apple.com/en-us/109316)). Install the eSIM at home on Wi-Fi, and when you land, turn on data roaming for the travel line. This site is not affiliated with any carrier named on this page; we sell eSIMs. [How we compare](https://esimworld.us/how-we-compare/) You may not need an eSIM. If your carrier plan already includes data where you are going, stay on it. This travel eSIM help follows a trip in order. ## All guides in this topic - [Delete an eSIM on iPhone or Android After a Trip](https://esimworld.us/help/delete-esim/) — To delete an eSIM on iPhone, open Settings, tap Cellular, then Delete eSIM. - [Do iPhones Have SIM Cards? iPhone 14+ (US) Has No Tray](https://esimworld.us/help/do-iphones-have-sim-cards/) — Do iPhones have SIM cards? A US iPhone 14 or later has no SIM tray and activates with an eSIM only. - [Dual SIM on iPhone and Android: US Number Plus Travel eSIM](https://esimworld.us/help/dual-sim/) — Dual SIM iPhone setup: keep your US number for calls and texts and set the travel eSIM for cellular data. - [eSIM Compatible Phones: Pixel 4+, iPhone XS+, Galaxy S20–S26](https://esimworld.us/esim-compatible-phones/) — eSIM compatible phones per Apple, Google and Samsung: iPhone XS and XR or later, Pixel 4 and later, Galaxy S20 to S26 and foldables. - [eSIM Not Working Abroad? Check These Settings First](https://esimworld.us/help/esim-no-signal/) — eSIM not working abroad: turn on Data Roaming for the travel line, make it the data line, try Airplane Mode for about 30 seconds. - [eSIM on iPhone: Models, Limits and a Travel eSIM](https://esimworld.us/esim-iphone/) — eSIM iPhone guide: Apple lists eSIM on the iPhone XS, XR and later; US iPhone 14 and later are eSIM-only. - [How Much Data Do I Need for a Trip? Estimate, Then Check It](https://esimworld.us/how-much-data-do-i-need/) — How much data do I need for a trip? Use the estimate, then check your own cellular usage in Settings and compare it with plan sizes and prices. - [How to Install and Activate a Travel eSIM on iPhone and Android](https://esimworld.us/how-to-install-esim/) — How to activate eSIM on iPhone and Android: install the travel eSIM at home on Wi-Fi, scan the QR code, make it your data line on arrival. - [Keep Your US Number Abroad: 2FA Codes and Texts](https://esimworld.us/help/keep-your-us-number/) — Keep my US number with a travel eSIM: 2FA codes and texts stay on your main line; most of our plans are data only. - [Transfer an eSIM to a New Phone: iPhone, Samsung, Pixel](https://esimworld.us/help/transfer-esim/) — How to transfer an eSIM from one iPhone to another with Quick Transfer (iOS 18.4+), from Android to iPhone, to a Galaxy or Pixel. - [Travel eSIM Daily Data Limit: 3 GB a Day, Then What?](https://esimworld.us/esim-unlimited/) — Our daily-limit plans give a set amount of full-speed data each day, for example 3 GB, then 1 Mbps. - [What Is an eSIM? How a Travel eSIM Works With Your US Line](https://esimworld.us/what-is-an-esim/) — What is an eSIM? A SIM built into your phone, added by QR code or link. - [What Is Data Roaming? Turn It On or Off Abroad](https://esimworld.us/help/data-roaming/) — What is data roaming: the phone setting for another carrier's network abroad. ## Before you buy A travel eSIM is another carrier's plan, so the unlock check comes first. Apple says that to use another carrier when traveling internationally, "your iPhone cannot be locked to a carrier" (checked on October 29, 2026, [Apple](https://support.apple.com/en-us/118227)). Read [Is my phone unlocked?](https://esimworld.us/unlock/is-my-phone-unlocked/) and [Does my phone support eSIM?](https://esimworld.us/esim-compatible-phones/) together. If the phone is locked, the [unlock rules by carrier](https://esimworld.us/unlock/) show when each carrier unlocks it. A US iPhone 14 or later has no SIM tray, so an eSIM is the only way to add a travel plan (checked on October 29, 2026, [Apple](https://support.apple.com/en-us/109357), [Apple models](https://support.apple.com/en-us/118569)). [Do iPhones have SIM cards?](https://esimworld.us/help/do-iphones-have-sim-cards/) lists the models, and [how to pay](https://esimworld.us/how-to-pay/) covers card payment in US dollars. ## Before you fly Install the eSIM at home on Wi-Fi before you fly. On 374 of the 379 plan families in our catalog, the days start only when the eSIM first connects at your destination (October 29, 2026). The other 5 start at installation, so check the activation rule on your plan. The plan page also shows how long you have to install the eSIM. The [installation guide](https://esimworld.us/how-to-install-esim/) has the steps for iPhone and Android. Unsure how much to buy? [How much data you need](https://esimworld.us/how-much-data-do-i-need/) estimates it. New phone before the trip? See [how to transfer an eSIM](https://esimworld.us/help/transfer-esim/). ## When you land Most of our plans are data only: 371 of the 379 plan families in our catalog on October 29, 2026. Your US number stays on your main line for calls and texts. Turn on data roaming for the travel line, and choose it for cellular data. Hotspot on our plans: the plan doesn't state a hotspot rule — see the plan page. The [data roaming page](https://esimworld.us/help/data-roaming/) covers what the setting does and what it can cost on a US line. The [dual SIM guide](https://esimworld.us/help/dual-sim/) says which line carries what, and [keeping your US number](https://esimworld.us/help/keep-your-us-number/) covers 2FA codes and texts. On a cruise, an eSIM works in port, not at sea, because ship networks are separate; see [your phone on a cruise](https://esimworld.us/cruise/). ## If something goes wrong With no signal or no data, check data roaming on the travel line first, then that the travel line is your cellular data line. Apple also suggests Airplane Mode for about 30 seconds (checked on October 29, 2026, [Apple](https://support.apple.com/en-us/109037)). If the date and time are wrong after you land, turn on Set Automatically under Date & Time. Don't delete the eSIM to fix a connection; [eSIM not working abroad](https://esimworld.us/help/esim-no-signal/) has all the checks in order. If the QR code never arrived, or you want a refund, use [contact us](https://esimworld.us/contact/). We refund in full within 30 days of purchase, as long as the eSIM hasn't connected to a network; the [refund policy](https://esimworld.us/refund-policy/) has the conditions. ## After the trip Switch the travel eSIM off first and delete it only when you are done. Apple warns that after you erase an eSIM, "you'll need to contact your carrier to get a new one" (checked on October 29, 2026, [Apple](https://support.apple.com/en-us/102421)). [How to delete an eSIM](https://esimworld.us/help/delete-esim/) has the steps. ## Frequently asked questions ### How far in advance should I buy and install an eSIM? Any time before you fly, as long as you install it within the window shown on the plan page. On most of our plans the days start only when the eSIM first connects at your destination, so installing early does not use up days. Install it at home, on Wi-Fi. ### Do I turn on data roaming for the eSIM? Yes, for the travel line. Turn Data Roaming on for that line and choose it for cellular data. What you do with Data Roaming on your US line is your choice; the data roaming page explains what it can cost. ### Can I get a refund or change the destination? Yes, within 30 days of purchase, as long as the eSIM hasn't connected to a network. That covers a wrong destination or plan too: ask for a refund, then buy the right one. The refund policy page has the full conditions. ## Sources - [Apple: how to check if your iPhone is unlocked](https://support.apple.com/en-us/109316) - [Apple: Use eSIM while traveling internationally with your iPhone](https://support.apple.com/en-us/118227) - [Apple: Remove or switch the SIM card in your iPhone](https://support.apple.com/en-us/109357) - [Apple: Learn which size SIM card your iPhone or iPad uses](https://support.apple.com/en-us/118569) - [Apple: cellular data and Data Roaming](https://support.apple.com/en-us/109037) - [Apple: How to erase an eSIM on your iPhone or iPad](https://support.apple.com/en-us/102421) ## Before you buy ### Will I get a phone number at my destination? On most plans, no: the eSIM is data only. Calling apps are subject to the rules of the country you are in. For 3 destinations in the catalog there are also plans with minutes and SMS, and the country page shows which ones. ### Will my US SIM keep working? It stays in your phone. The eSIM is added as a second line: data goes through it, and your US number stays on the phone for calls and texts. To avoid roaming charges from your US carrier: on an iPhone, each line has its own Data Roaming switch; turn it off on the US line and on for the travel eSIM. On Android it depends on the brand: if there is one switch for all SIMs, leave it on and choose the eSIM as the line for cellular data. Whether texts, including bank security codes, reach your US number abroad, and what they cost, depends on your carrier’s roaming terms. ### Does my phone support eSIM? Most recent models do, but not all, and a phone locked to a carrier rejects the profile. Check yours in the [list of eSIM-compatible phones](https://esimworld.us/esim-compatible-phones/) before you buy. On an iPhone, Settings → General → About → Carrier Lock should say “No SIM restrictions”; on other phones, ask your carrier whether the phone is unlocked. The details are on the [unlocked phone](https://esimworld.us/unlock/is-my-phone-unlocked/) page. ### Do WhatsApp and Instagram work? They work as on any cellular data connection, because the eSIM is a data connection. The exception is services that the country itself blocks. ## Order and payment ### How do I pay? By debit or credit card, or Apple Pay or Google Pay if Stripe shows them on your device, in US dollars (exactly the price shown), on Stripe’s secure payment page. It appears on your statement as JET SHARING. The details are on the [how to pay](https://esimworld.us/how-to-pay/) page. ### What currency am I charged in? Pay by card: you are charged exactly the price shown, in US dollars. The seller is a company registered in the United States, so this is a payment to a US business. Online payments must be enabled on your card. ### The QR code didn't arrive. What should I do? Check the spam and promotions folders of the email address you gave with the order. If it isn't there, use [Find my order](https://esimworld.us/order/find/) or write to support@esimworld.us from the email address you used to buy. ## Installation and activation ### I installed the eSIM at home. Has the plan started? Installing and activating are different steps. On most of our plans the days start when the eSIM first connects at your destination; check the activation rule shown on your plan’s country page. ### How do I install the eSIM? Scan the QR code from the email with your phone, ideally at home on Wi-Fi. The steps are in the [installation guide](https://esimworld.us/how-to-install-esim/), with a [section for Android](https://esimworld.us/how-to-install-esim/#android). ### Can I use the same eSIM on two phones? No. The profile stays on the phone where you installed it. To get online on another device, buy another plan; ask us before you rely on sharing the connection from your phone. ## During the trip ### How do I see how much data I have left? Your phone shows an estimate for the eSIM line: on an iPhone, in Settings → Cellular; on Android, in the network or data usage settings, where names differ by brand and model. The order page, linked in your email, can also show the balance. ### My data ran out before the end of the trip. What now? Buy a new plan for the rest of the trip on the destination page; it comes with its own QR code by email. ## Refunds ### The profile didn't work. What should I do? Write to support@esimworld.us and tell us what your phone showed.