iPhone 17 only with eSIM: How to easily convert your SIM card

Apple is breaking with tradition: The new iPhone 17 will only work with eSIM in Germany and the EU. There will no longer be a physical SIM card. For many, this means that they have to convert their previous SIM to eSIM. Sounds complicated? Don't worry—we'll explain how to get your iPhone 17 up and running right away and what steps you need to take.

What does “eSIM only” mean on iPhone 17?

With the iPhone 17, Apple in Europe is consistently focusing on the digital future of mobile technology. Instead of a plastic card, there is only one built-in eSIM.

What is an eSIM anyway?

Instead of the small plastic card that you used to put into your mobile phone, the eSIM is already stuck in the smartphone — invisible, digital and immediately ready to use. Your mobile phone tariff is simply uploaded as a “software profile.” No more fiddling with tiny cards, no more loss — just scan, activate, start surfing.

That means:

• Don't insert a SIM card anymore.
  
• Everything is digital via QR codes or apps.
  
• Quick provider change without a visit to the shop.

Many users are now asking themselves: “Can I use my iPhone 17 without a SIM? ” — the answer is: No, you need an eSIM from your mobile operator.

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Why the eSIM is a real game changer — especially for travelers

The introduction of eSIM in iPhone 17 is not only a technical advance, but also an enormous advantage for providers like us — and of course for you as a user. Because the eSIM eliminates the hassle of fiddling with plastic cards, paper contracts or going to the shop. Everything is digital, fast and uncomplicated.

eSIM shows its strengths, especially when traveling:

• Instantly online after landing — no more searching for a local SIM shop at the airport.
  
  
• Several tariffs in parallel — You can keep your German eSIM and also activate a BuddySIM for your travel destination.
  
  
• Flexible data plans — from 1 GB to 20 GB, depending on travel time and usage
  
  
• Full cost control — no more expensive roaming traps, but transparent prepaid packages.
  
  

For providers such as us The development is a milestone because travelers can now book digital rates even more easily — without waiting, without shipping, simply directly via QR code. This makes the iPhone 17 not only a new smartphone, but also the key to limitless connectivity on the go.

Many users are already asking themselves how this actually works with the new technology. In Germany in particular, thousands are looking for answers such as “iPhone 17 eSIM Germany” or “iPhone 17 no longer a SIM card — what to do? ”. Others would like to know how they actually their Be able to convert SIM to eSIMWhat steps are involved in Set up eSIM on iPhone 17 are necessary or which mobile phone providers already support the new technology. These are exactly the questions we are addressing here — and showing you step by step how the changeover works. And the best part: If you need help, we're here for you with our free support Always by your side.

Converting SIM to eSIM — step by step

Anyone who wants to switch from the classic SIM card format to the new technology is faced with a central question with the iPhone 17: How do I switch my SIM to eSIM and what happens if I replace my iPhone later? There are basically two procedures, which differ depending on the provider.

1. Switch SIM to eSIM via your provider

The first option is via the customer portal or the app of your mobile network provider (e.g. Telekom, Vodafone or O2).

1. Sign in with your provider
   — either in the portal or in the app.
   
2. Request an eSIM profile
   — you will receive a QR code or activation code.
   
3. Installing on iPhone 17
   — Settings → Mobile network → “Add mobile tariff” → Scan QR code → done. (Older iPhones are also already eSIM compatible; a full list can be found here buddsim.com/check)

4. Deactivate old SIM
   — From now on, your tariff runs entirely via the eSIM.

💡 Note: Some providers charge a one-time fee for the changeover.

2. Switch SIM to eSIM directly in the iPhone

The second option is even more convenient: You convert your existing SIM into an eSIM directly in the iPhone settings.

There are two scenarios for this:

✅ Scenario A: Your provider supports the conversion from SIM to eSIM in the device

The process is fully automated. Your iPhone creates an eSIM, transfers your plan and deactivates the old plastic SIM at the same time. After a few minutes, you're online — without a QR code.

❌ Scenario B: Your provider doesn't support converting to eSIM

In this case, do not cancel the process, but request a new eSIM via your customer portal or hotline. You will then receive a QR code as usual, which you scan and install. Your tariff remains the same, only the eSIM ID (ICCID) changes.

Here's how:

• Open Settings → Cellular.
  
• Tap on your existing SIM and select “Convert to eSIM.”
  
• Follow the on-screen instructions.

Important: Since the iPhone 17 no longer supports a physical SIM card, you must use an eSIM at the latest when you switch devices — either via the iPhone settings or via your provider.

⚠ What is particularly important when switching from a physical SIM to an eSIM?

• Preparation: Check in good time whether your provider supports direct eSIM conversion in the iPhone.
  
• Backup isn't enough: An eSIM isn't stored in an iCloud backup. It must be actively transferred or set up again.
  
• Security: Many providers secure the process with a password or TAN — this protects your phone number.
  

conclusion

Whether via the provider or directly in the iPhone settings — switching from SIM to eSIM in the iPhone 17 is easy.

• If your provider supports automatic conversion, everything works in just a few clicks.
  
• If not, a QR code from the customer portal is sufficient.

Either way: With the iPhone 17, you're ready to go in minutes — without a plastic card.

Common problems & solutions

• My provider doesn't support eSIM
  → Almost all major providers now offer eSIM. If not, a change is worthwhile.
  
  
• My eSIM doesn't work on iPhone 17
  → Check that you have scanned the QR code correctly. If necessary, request a new eSIM from the customer portal.
  
  
• Transfer eSIM to new iPhone 17
  → In the iPhone settings, you can transfer your existing eSIM directly from an old device.
  

iPhone 17 & eSIM: What are your benefits?

• Ready for immediate use after activation — no need to wait for mail or shop visits.
  
• Full cost control — perfect for prepaid and roaming.
  
• Several eSIMs in parallel usable, ideal for travel.
  

Particularly exciting for frequent travelers: In addition to your German number, you can also use a BuddySIM eSIM for abroad add — without a second SIM card.

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Free support: We'll help you switch to an eSIM

The switch to eSIM is new for many. That is why we offer you free support:

• We'll explain how to set it up step by step.
• We'll show you how to convert your SIM to eSIM.
• We'll also help you with problems with your provider.
  

👉 Just write to us about WhatsApp at buddysim.com/support with the keyword “TRANSFER” — our team from BuddySIM supports you free of charge.

Conclusion: iPhone 17 makes eSIM the standard

In Germany and the EU, the iPhone 17 marks the final farewell to the classic SIM card. Anyone who gets information in good time and makes the transition benefits from a easier, faster and more flexible use. And the best part: With BuddySIM by your side, you not only have a solution ready right away, but also a free helperwhen things get stuck.