eSIM FAQ: Travel Connectivity Help
Check whether your phone supports eSIM, get ready for your trip or find out why your mobile data is not working. Start with a quick answer below, then explore the topic or follow a step-by-step guide.
Quick eSIM Answers
Start hereAn eSIM lets you download a mobile plan to a compatible device without inserting a physical SIM card. Many travel eSIMs provide mobile data only, so check whether your chosen plan also includes a phone number, calls or SMS.
Explore the eSIM basics FAQ or read our guide to what an eSIM is and how it works.
Use the provider’s app, scan its QR code or enter its manual setup details in your phone’s Add eSIM menu. You need a compatible device and a reliable internet connection. Before starting, check whether installation also starts the plan’s validity period.
Browse the installation and activation FAQ, or follow the steps for iPhone or Android.
Check your exact model and regional version in the manufacturer’s specifications, then look for Add eSIM in the mobile network settings. Dual SIM support alone is not enough. For a travel plan from another provider, also confirm that your phone is carrier-unlocked.
Check the device compatibility FAQ or use our phone compatibility checklist.
Yes, if your phone supports that Dual SIM combination. You can normally use the travel eSIM for data and keep your home number available. To limit unexpected data charges, disable home-line data roaming and automatic data switching. Calls, outgoing texts and voicemail may still incur home-carrier charges.
See the Dual SIM FAQ answer and our guide to using an eSIM and physical SIM together.
Check that the eSIM is enabled, selected for mobile data and covered by an active plan in your current destination. Then follow the provider’s roaming, APN and network instructions. Do not delete the profile unless the provider confirms that you can reinstall it.
Find your symptom in the troubleshooting FAQ or work through our eSIM connection checks.
Check when the plan starts and whether it has an installation or activation deadline. A plan that starts on its first supported network can often be installed before departure. If validity starts at purchase or installation, time that step close to when you need service. Turning the line off does not pause a validity period that has already started.
Read the travel eSIM activation FAQ or compare provider rules in our guide to when to buy an eSIM before travel.
Browse eSIM FAQ Topics
10 topics · 200 questionsGo straight to the subject you need, or visit the complete eSIM Questions and Answers hub. Each topic has its own question search.
eSIM Basics
Understand how eSIMs work, what data-only means and how they differ from physical SIM cards.
20 questions Before you buyDevice Compatibility
Check phone models, regional versions and carrier locks, plus support for tablets, watches and laptops.
20 questions Set up your phoneInstallation & Activation
Install with an app, QR code or manual details, and understand when your plan starts.
25 questions Use your eSIM abroadTravel & Roaming
Plan activation, manage your home SIM and check coverage for multiple countries, layovers and cruises.
20 questions Understand your connectionCoverage, Networks & Speed
Learn about partner networks, 4G and 5G, rural coverage, routing and reduced speeds.
20 questions Keep your number and share dataCalls, SMS, Hotspot & Dual SIM
Use two lines, receive verification texts, make calls and connect a laptop through your phone.
20 questions Understand what you are buyingPlans, Pricing & Validity
Compare data allowances, unlimited-plan limits, expiry dates, top-ups and the full cost of a plan.
20 questions Fix a problemeSIM Troubleshooting
Find checks for No Service, activation errors, missing mobile data, APN settings and hotspot problems.
30 questions Protect your accountSecurity, Privacy & Refunds
Protect your activation details, understand privacy limits and learn what to check in a refund policy.
15 questions Choose a suitable planChoosing an eSIM Provider
Compare coverage, network access, hotspot rules, support and plan conditions before deciding.
10 questions