How to Install an eSIM on iPhone and Android: Complete Step-by-Step Guide (2026)

Installing an eSIM takes most people less than five minutes, but the process looks different depending on your phone model, your carrier, and whether you're activating via QR code, manual entry, or a companion app. If you've never done it before, the unfamiliarity can make it feel more complicated than it actually is.

This guide walks through every installation method on both iPhone and Android, covers what to do when something goes wrong, and explains how to manage multiple eSIMs on a dual-SIM phone. By the time you've read it, you'll know exactly what to tap, in what order, and what to expect when each step completes.

TLDR: How to Install an eSIM

• Most travel eSIMs install via QR code: scan it in your phone's cellular settings and the eSIM profile downloads automatically.
• On iPhone: Settings → Cellular → Add eSIM → Use QR Code. On Android: Settings → Connections (or Network) → SIM Manager → Add eSIM.
• You need a WiFi connection to download the eSIM profile. Do this at home before your trip, not at the airport.
• Each eSIM profile can only be installed on one device. If you scan the QR code on the wrong phone, the code is typically consumed and can't be reused.
• Most phones support dual SIM — your physical SIM and eSIM can run simultaneously, so your home number stays active while the eSIM handles data abroad.
• iPhones sold in the US since iPhone 14 are eSIM-only with no physical SIM slot, making eSIM the only way to add a line.

Before You Begin: What You Need

Before installing, confirm these four things:

• Your phone supports eSIM. Most iPhones from the XS (2018) onward do. Most Android flagships from 2019 onward do. Budget Android phones often don't. The list below covers compatibility in detail.
• Your phone is unlocked. If you bought your phone on a carrier installment plan and haven't finished paying it off, it may be locked to that carrier, which can prevent installing an eSIM from another provider. Contact your carrier to confirm or request an unlock.
• You have a WiFi connection. eSIM profiles download over the internet. You cannot install an eSIM without internet access. Home WiFi is the right time to do this — not at the departure gate.
• You have your QR code or activation details. Travel eSIM providers send a QR code by email after purchase. Have it accessible on a second screen or printed — you can't scan a QR code with the same phone you're installing it on.

Which Phones Support eSIM?

iPhone eSIM Compatibility

Apple began supporting eSIM in 2018. Every iPhone from the XS and XR onward supports eSIM. Here's the full picture by generation:

• iPhone XS, XS Max, XR (2018): eSIM supported, dual SIM (one physical + one eSIM)
• iPhone 11, 11 Pro, 11 Pro Max (2019): eSIM supported, dual SIM
• iPhone SE (2nd gen, 2020): eSIM supported, dual SIM
• iPhone 12 series (2020): eSIM supported, dual SIM
• iPhone 13 series (2021): eSIM supported, dual SIM; some models support two eSIMs simultaneously
• iPhone SE (3rd gen, 2022): eSIM supported, dual SIM
• iPhone 14 series (2022, US models): eSIM only — no physical SIM slot. International models retain the physical SIM slot.
• iPhone 15 and 16 series (2023–2024): US models are eSIM only. International models retain physical SIM. All support multiple eSIM profiles stored simultaneously.

To verify on your iPhone: go to Settings → General → About and look for "eSIM" or an EID number. If you see an EID, your phone supports eSIM.

Android eSIM Compatibility

Android eSIM support is less consistent because there are hundreds of Android device models across many manufacturers. These are the major eSIM-compatible Android phones as of 2026:

• Google Pixel: Pixel 2 and later support eSIM (Pixel 2 onward in the US; some international models vary)
• Samsung Galaxy S series: Galaxy S20 and later (note: US carrier variants sometimes disable eSIM at the hardware level — unlocked international models are more consistently eSIM-enabled)
• Samsung Galaxy Z series: Z Fold and Z Flip from the second generation onward
• OnePlus: Selected flagship models from 2021 onward
• Motorola: Selected models including the Razr (2019+) and Edge series
• Oppo/Find X series: Selected 2022+ models in international variants

To check Android eSIM support: go to Settings → About Phone → look for "EID" in the SIM status section. Alternatively, go to Settings → Connections (or Network & Internet) → SIM Manager and see if there's an "Add eSIM" or "Download SIM" option. If the option exists, eSIM is supported.

How to Install an eSIM on iPhone

Method 1: QR Code (Most Common)

This is the standard method for most travel eSIM providers. Your provider emails you a QR code after purchase.

1. Open Settings on your iPhone.
2. Tap Cellular (or "Mobile Data" in some regions).
3. Tap Add eSIM (on iPhone 14 and later it may show as "Add Cellular Plan").
4. Tap Use QR Code.
5. Point your camera at the QR code. The camera viewfinder opens — hold it steady over the code until it reads.
6. Tap Continue when the eSIM details appear. You'll see the carrier name and plan details.
7. Tap Add Cellular Plan to confirm.
8. If prompted, choose whether this plan is for your primary line or a secondary line.
9. Label the eSIM if you want (e.g., "Europe Trip" or the country name) — this helps if you accumulate multiple eSIMs.

The download takes 30–60 seconds on a good WiFi connection. When complete, you'll see the new plan listed under Cellular with a green indicator showing it's active.

Method 2: Manual Entry

Some providers give you an activation code as text rather than a QR code. The steps are the same until step 4:

1. Go to Settings → Cellular → Add eSIM.
2. Tap Enter Details Manually instead of "Use QR Code."
3. Enter the SM-DP+ address (sometimes called "Activation Server Address") and the Activation Code provided by your eSIM provider.
4. Tap Next and follow the confirmation prompts.

Method 3: iPhone Transfer (Carrier eSIM)

When you get a new iPhone and want to move your carrier plan to it, iOS offers a direct phone-to-phone eSIM transfer. This is for moving your regular home carrier plan to a new device — not for installing travel eSIMs.

1. Place your old iPhone and new iPhone near each other.
2. On the new iPhone, go to Settings → Cellular → Add eSIM → Transfer From Nearby iPhone.
3. Follow the prompts on both phones.

Method 4: eSIM Carrier App

Some carriers — particularly major US and European carriers — provide their own apps for eSIM activation. If your provider's instructions direct you to download an app, follow that flow rather than the QR code process. The app handles the technical transfer internally.

How to Install an eSIM on Android

Android eSIM installation varies slightly by manufacturer and Android version, but the general path is consistent.

Google Pixel

1. Open Settings.
2. Tap Network & Internet.
3. Tap SIMs.
4. Tap the + icon or Add SIM.
5. Tap Download a SIM instead?
6. Tap Next.
7. Scan the QR code or enter details manually.
8. Follow the on-screen prompts to complete installation.

Samsung Galaxy

1. Open Settings.
2. Tap Connections.
3. Tap SIM Manager.
4. Tap Add eSIM.
5. Tap Scan QR code from service provider.
6. Scan the QR code.
7. Tap Confirm to install.

Other Android Phones

If your phone isn't Pixel or Samsung, look in Settings under one of these paths:

• Settings → Network → SIM Card Management → Add eSIM
• Settings → Mobile Network → Add SIM
• Settings → Dual SIM & Mobile Network → Add eSIM

If you can't find the option, search "eSIM" in your phone's Settings search bar. If no result appears, your phone may not support eSIM or the feature may be carrier-locked.

Setting Up Dual SIM After Installation

The most useful configuration for international travel is running your home physical SIM and a travel eSIM simultaneously. This keeps your regular number active for calls and texts while the eSIM handles data at local rates.

On iPhone

1. Go to Settings → Cellular.
2. You'll see both plans listed. Tap each one to review its settings.
3. Tap Default Voice Line and select your home physical SIM — this ensures calls use your regular number.
4. Tap Default for Cellular Data and select your travel eSIM.
5. Under each plan, you can toggle "Turn On This Line" to enable or disable it without deleting it.

With this setup, calls and SMS arrive on your home number normally. All data — maps, apps, social media, messaging over the internet — uses the travel eSIM at local rates. If someone calls your regular number, it rings on your phone as normal.

On Android (Samsung example)

1. Go to Settings → Connections → SIM Manager.
2. Under "Preferred SIM," set your home SIM for calls and your travel eSIM for mobile data.
3. Both SIMs remain active simultaneously.

Troubleshooting: What to Do When It Doesn't Work

"eSIM Not Supported" or No Add eSIM Option

If you don't see an "Add eSIM" option in your settings at all, there are three likely causes:

• Your phone doesn't support eSIM. Budget phones from Samsung, Motorola, and others often skip eSIM support even on recent models. Check your phone's spec sheet or the manufacturer's website.
• Your phone is carrier-locked and the carrier has disabled eSIM. Some US carriers, particularly when selling phones on installment plans, lock the eSIM functionality. Contact your carrier to unlock or confirm eSIM is enabled.
• You're running an older version of Android. eSIM support requires Android 9 or later. Update your OS if you're below that.

QR Code Won't Scan

• Make sure you're holding the camera steady and the QR code is well-lit.
• Try displaying the QR code on a laptop or tablet screen rather than a phone screen — screen glare can interfere with scanning.
• If the QR code is in an email you received on your phone, forward the email to a laptop, open it there, and scan from the laptop screen with your phone camera.
• If you've already scanned the code but the installation failed, contact your eSIM provider — some will reissue the code; others require you to start a new purchase.

Installation Fails Midway

• Check your WiFi connection. A dropped connection during eSIM download will cause the installation to fail.
• Restart your phone and try again. Many eSIM installation errors resolve after a reboot.
• Disable your VPN if you have one running. Some VPN configurations interfere with eSIM activation servers.
• Confirm your phone's date and time are set to automatic. Incorrect time settings can cause security certificate errors during eSIM authentication.

eSIM Installed But Not Getting a Signal

• Check whether your plan has activated. Some travel eSIMs activate automatically on purchase; others only start when you arrive in the destination country or when you first connect to the local network. Your provider's instructions should specify which applies.
• Toggle airplane mode on and off. This forces your phone to re-scan for available networks.
• Manually select the network. On iPhone: Settings → Cellular → [eSIM plan] → Network Selection → Manual. On Android: Settings → Connections → Mobile Networks → Network Operators → Search Now. Select the carrier your eSIM supports.
• Make sure the eSIM plan is set as your default data line in the dual-SIM settings.

eSIM Missing After Phone Restart or Update

eSIM profiles are stored in your phone's embedded SIM chip and should survive restarts and software updates. If a profile appears missing after a restart, go to Settings → Cellular and check if it appears as inactive rather than absent — it may just need to be re-enabled. If it's genuinely gone after a factory reset or device replacement, you'll need to reinstall it from your provider.

Important: Always back up your eSIM QR codes before a factory reset. Once an eSIM profile is deleted, the original QR code is often invalidated, and you'll need to request a new one from your provider.

eSIM Installation Methods: Quick Comparison

Method	Best For	Requirements	Time to Complete
QR Code scan	Travel eSIMs, most international plans	Second screen to display the QR code, WiFi	1–3 minutes
Manual entry	When QR code isn't available or doesn't scan	Activation code from provider, WiFi	2–5 minutes
Carrier app	Major US/EU carriers, corporate plans	Carrier's app, account login, WiFi	3–10 minutes
iPhone-to-iPhone transfer	Moving home carrier plan to new iPhone	Both iPhones nearby, old phone unlocked	5–10 minutes

How to Delete or Switch an eSIM

Unlike physical SIMs, you don't pop out an eSIM — you delete the profile from your phone's settings. This is irreversible on most devices and with most providers.

On iPhone

1. Go to Settings → Cellular.
2. Tap the eSIM plan you want to remove.
3. Tap Delete eSIM at the bottom of the screen.
4. Confirm deletion.

Once deleted, the eSIM profile is removed from your device. If your provider supports reinstallation (some do, some don't), you may be able to reinstall it from your provider's app or with a new QR code. Check your provider's policy before deleting if you think you may want to reuse the plan.

Storing Multiple eSIMs

Modern iPhones (from iPhone 13 onward) can store up to 8–15 eSIM profiles simultaneously but can only have two active at any given time. This means you can install your Europe eSIM, your Japan eSIM, and your US carrier eSIM all at once, and simply switch the active plan in Settings as you move between countries — without scanning new QR codes each time.

On Android, the number of storable profiles varies by manufacturer, typically 5–10.

Real-World Installation Scenarios

The Pre-Trip Install at Home

Sarah is flying to Italy in three days. She purchases a 10-day Italy eSIM from Esimify and receives the QR code by email. She opens the email on her laptop, goes to Settings → Cellular → Add eSIM → Use QR Code on her iPhone 15, scans the code from the laptop screen, and the eSIM profile downloads in under a minute. She labels it "Italy Trip." The eSIM stays installed but inactive until she lands in Rome and turns off airplane mode, at which point it connects automatically to the local network. Total setup time: three minutes, three days before the trip.

The Airport Install

Tom forgot to set up his eSIM before the flight. He's just landed in Bangkok and has no local data. He connects to the airport's free WiFi, opens his eSIM provider's email, pulls up the QR code, and scans it. The installation completes over WiFi. He sets the Thailand eSIM as his default data line, turns off airplane mode, and has a working local data connection before leaving the arrivals hall. Total time: eight minutes.

The Multi-Country Trip

Rachel is doing a three-week trip across Japan, South Korea, and Thailand. She installs three separate eSIMs at home — one for each country — using QR codes from three different regional plans. All three are stored on her iPhone 15. As she crosses each border, she goes to Settings → Cellular, enables the relevant eSIM, and disables the previous one. No scanning required at each new country. Her US physical SIM stays in the phone the entire trip, receiving calls and texts on her home number.

Tips for a Smooth eSIM Experience

• Install your eSIM at home over your home WiFi before the trip. Airport WiFi is slow, congested, and sometimes blocks the activation servers eSIM providers use.
• Screenshot or print your QR code as a backup. If your email goes offline or the provider's portal is inaccessible, having a saved copy prevents you from being stuck.
• Check your provider's activation policy before installing. Some plans start counting down from the moment you install the eSIM; others only start when you first connect to the destination network. Installing too early on a countdown plan wastes days.
• Disable data roaming on your physical SIM before traveling. This prevents your home carrier from silently charging roaming fees while your eSIM handles data. On iPhone: Settings → Cellular → [home SIM] → Data Roaming → Off.
• Keep the original QR code email. Some providers let you reinstall a used eSIM profile from the same QR code; others don't. Either way, having the original is useful for contacting support.
• Name your eSIMs clearly. If you travel frequently, labels like "Japan - Oct 2026" are easier to manage than "Secondary" and "Plan 2."

Frequently Asked Questions

Can I install an eSIM without WiFi?

No. eSIM profiles are downloaded over the internet from the carrier's activation server. You need a WiFi or data connection to install an eSIM. If you're at your destination and have no connectivity, airport WiFi is the practical option.

Can I install an eSIM on a locked phone?

Possibly, but with restrictions. A phone locked to AT&T, for example, will typically only accept eSIMs from AT&T or partners. To use a travel eSIM from another provider, your phone needs to be unlocked. Contact your carrier to request an unlock, which is often available after you've paid off the device or completed your minimum contract period.

Will installing an eSIM cancel my regular plan?

No. Installing a travel eSIM does not affect your existing physical SIM or your home carrier plan in any way. Both can coexist on the phone simultaneously. Your home carrier continues billing you as normal; the travel eSIM adds a separate data-only line.

What happens to my eSIM if I lose my phone?

If your phone is lost or stolen, the eSIM is inaccessible to anyone who doesn't know your PIN or Face ID credentials. Contact your eSIM provider to flag the plan if you're concerned. On a new replacement phone, you'll need to reinstall the eSIM from the QR code or via your provider's app — it doesn't transfer automatically between devices.

Can I transfer an eSIM from one phone to another?

eSIM profiles are typically locked to the device they're installed on and cannot be moved directly to another device. The exception is Apple's iPhone-to-iPhone transfer for home carrier eSIMs. For travel eSIMs, you'd need to delete the profile from your old phone and request a reinstall from your provider on the new phone. Not all providers support this — check the policy before switching devices mid-trip.

How many eSIMs can I have on one phone?

On iPhone 13 and later: up to 8–15 stored profiles, with 2 active at once. On iPhone 12 and earlier: typically up to 5 stored profiles. On Android, this varies by manufacturer but is typically 5–10. Only one or two profiles can be active at any time regardless of how many are stored.

Does eSIM work for calls and texts or only data?

Travel eSIMs are almost always data-only. They give you a mobile data connection in the destination country but do not assign you a local phone number. Calls and texts to your home number still go through your physical SIM. For making local calls, use apps like WhatsApp, FaceTime Audio, or Google Voice over the eSIM's data connection.

My eSIM is installed but shows "No Service" — what should I do?

First confirm the eSIM is set as your default data line (Settings → Cellular → Cellular Data, select the eSIM). Then toggle airplane mode off and on to force a network scan. If still no service, go to Settings → Cellular → [eSIM] → Network Selection → Manual, and scan for available networks — select the one your eSIM provider supports. If nothing works, contact your provider's support with your EID and order number.

Conclusion

Installing an eSIM is a straightforward process once you know the path through your phone's settings. The most important habit is preparation: install before you travel, use WiFi at home, and double-check whether your plan activates immediately or on first use in the destination country. The dual-SIM setup — your home physical SIM for calls, a travel eSIM for data — is the configuration most frequent travelers settle on, and it removes the only real friction of switching to eSIM for international connectivity.

Browse Esimify's destination eSIM plans and find the right plan for your next trip. For more guides on travel connectivity, device compatibility, and getting the most from eSIM technology, visit the Esimify blog.