The ease of using an international SIM card on your iPhone on a trip outside North America can be particularly useful whether it is a business trip or a retreat with your family and friends for a few days. However, in order for you to use an international SIM card on your iPhone, it must be equipped with a SIM card slot.
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In this post, we discuss the reasons why some iPhones do not have a SIM card reader and the importance of having one, how to check what network your iPhone is on and what to do if your iPhone does not come equipped with a SIM card slot.
Apple iPhone Unlocked for Use in Europe Submitted by Chad Shmukler on August 6, 2007 - 4:51pm Not long after we updated you about a major milestone on the road to an unlocked iPhone, one which brought an unlocked iPhone ever closer, hackers have unlocked the iPhone for use in Europe. The iPhone XS, iPhone XS Max and iPhone XR include a new feature that will make traveling overseas much easier. The latest iPhones support two SIM cards — the physical nano-SIM card that you. If you have an iPhone that is locked to a specific carrier, then the first thing that you would want to do is get it carrier unlocked. The reason for getting the iPhone unlocked is pretty simple, a locked iPhone has many drawbacks the biggest of which is you cannot freely switch from one carrier to another even though you have paid the full price for your device. All cell providers apart from Verizon and Sprint use GSM, and GSM is the technology that allows you to unlock your phone and use it abroad. If you have a Verizon iPhone, you'll have two SIM card slots in your phone—one for CDMA use and one for GSM use, so you'll also be able to unlock your phone and use. However, US cell phone carriers will unlock your iPhone for international use if you just ask them. “Unlocking” is a software issue, not hardware, so your carrier can unlock your phone remotely. This will enable your iPhone to be compatible with SIM carriers in other countries.
GSM Vs CDMA Networks
The main reason why there are iPhones without SIM card readers is because of your phone's network and the model of your iPhone. In the US and Canada, there are two main phone networks, GSM and CDMA.
GSM (Global System for Mobile Communications) network phones, such as T-Mobile and AT&T, require a SIM card to operate the phone. Since all the customer data is contained in the SIM card, you can easily swap and insert it in any unlocked GSM iPhone, whilst ensuring that all data contained in the SIM card is accessible through whatever phone you use.
In contrast, CDMA carriers (i.e. Sprint and Verizon) use network-based white lists to verify their subscribers instead of housing the customer data on a SIM card. Therefore, most CDMA phones do not have SIM card readers. However, due to the global popularity of the GSM network and the new 4G LTE network, Apple added international GSM SIM card readers to CDMA compliant iPhone 5 and newer models. This allows the phone owners to use the CDMA iPhone on their carrier's LTE network or use an international SIM cards while abroad.
Note: In order to use an international SIM card, both GSM and CDMA (with SIM card slot) phones must be unlocked.
How to Check If your iPhone Network Is GSM or CDMA?
You can check what network your iPhone is by simply turning over and looking at what model it is alongside the string number. The model number will usually start with ‘A1’ and either be GSM, CDMA, or dual GSM and CDMA iPhones. Check Apple's Support page here to learn how to identify your iPhone model.
In case, the number of the model is not clearly visible due to it being worn off, you can still find out what network carrier it is on by identifying the device on iTunes. You should be able to find what network the phone is on it.
Alternatively, you can open Settings on your iPhone and then click on About and check the details under the Carrier or Network option. The information provided can then be used to determine if your iPhone is GSM or CDMA.
Below is a list of iPhone models from iPhone 4 onwards and its compatibility with International SIM cards.
How To Use Unlocked Iphone In Europe Pro
Model | Compatible with International SIM Card |
| iPhone XS Max | √ |
| iPhone XS | √ |
| iPhone XR | √ |
| iPhone X | √ |
| iPhone 8 | √ |
| iPhone 8 Plus | √ |
iPhone 7 | √ |
iPhone 7 Plus | √ |
iPhone 6s | √ |
iPhone 6s Plus | √ |
iPhone 6 | √ |
iPhone 6 Plus | √ |
iPhone SE | √ |
iPhone 5s | √ |
iPhone 5c | √ |
iPhone 5 | √ |
iPhone 4s | √ |
iPhone 4 GSM model | √ |
iPhone 4 CDMA model | X |
What to Do If Your iPhone Does Not Have A SIM Card Slot
The number one criteria for using an international SIM card is the presence of a GSM SIM card reader on your phone. So what are your choices if your iPhone does not come with one and you want to use an international SIM card when traveling abroad? Here are a few options:
- Ask your carrier if they have a World Phone (a GSM phone that works in most countries) rental program for CDMA phone subscribers.
- Rent a World Phone from the airport or other independent companies before you leave home
- Purchase a budget smart phone that has a GSM SIM card reader and can work globally
Places To Get Iphone Unlocked
Wraptel provides international SIM cards that offer low cost Talk, Text and Data in more than 200 countries around the world. For more information on our excellent offers, please click here. To learn more on how to unlock mobile devices, click here.
When I was in Europe visiting, I found that my carrier: T Mobile did not charge me for data or text at all. I use an iP6s at that time and found it very useable with my US number..
How To Use Unlocked Iphone In Europe
I was on the GSM towers with T Mobile and since they are partners with other country's GSM - no charge - was a nice surprise when I got home with no extra charges..
It's a shame that the new iP 7 does not do both GSM and CDMA like the 6 and 6s did.
BTW: Other carriers - they charge a lot for use of your US number in Europe - my GF was charged $40 for international data use on her ATT phone! So just do what others have done - go get yourself a data SIM card when you land in any European country and use texting and data for pennies.. Of course it will not be a US number..
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How To Use Unlocked Iphone In Europe Sim Card
Sep 22, 2016 10:09 AM