Moving a SIM from a Samsung Galaxy S4 to a iPhone 5

A reader, Stephanie, asks

I have a Samsung galaxy s4 att using straight talk. If I wanted to switch to an iPhone 5 c could I use the same sim card I have in my android and just change the APN settings?


Hi Stephanie,

The SIM in your Galaxy S4 is too big to fit in an iPhone 5. The S4 uses a micro SIM but the  iPhone 5 uses a nano SIM.

Solving this problem is easy. Order a new nano SIM from the Straight Talk web site, I think it’s $7. From the Straight Talk web site, you can transfer your service from your current micro SIM to the new nano SIM for the iPhone 5.

At that point your iPhone 5, should set up the APN automatically.  The iPhone 5 will hide your APN settings screen any time their is any att network SIM in it, so if  you have a problem, come back to smartphonematters and you can find help to fix the problem.

I also strongly recommend you buy a package of SIM adapters. The SIM adapters will allow you to convert your new nano SIM to a micro SIM or mini SIM. If you wanted to put the new nano SIM in your S4 again, the nano to micro SIM adapter will make it fit.  The adapters are not expensive. It’s worth keeping some on hand if you ever need to change phones. I added a link below to the adapters I use. The are currently $1.45 shipped. If for some reason you ever need to change phones unexpectedly, you’ll have the right adapter to make your SIM fit another phone. I added a link below to the adapters I use.

If you want to learn more about SIM cards and adapters. See my videos.

The Smartphonematters SIM Adapter Guide

The Smartphonematters SIM Card Guide

Finally, be advised that while the Verizon model iPhone 5 will work with a Straight Talk ATT SIM, you will not get 4G LTE. That model phone only supports LTE on the Verizon network. The Verizon iPhone 5s and 5c should get LTE. And finally, the ATT and Tmobile iPhone 5, 5c, and 5s will get LTE. The T-mobile models need to be unlocked to use them with the Straight Talk ATT SIM.

Here is a link for SIM adapters on Amazon. I have used this brand before and they work. Sometimes the SIM adapters shipped aren’t an exact match as the one in the pictures but that should be fine.


  1. taylor | | Reply

    How would I transfer the service of my galaxy s4 to the iPhone 5s nano Sim for t mobile?

  2. Lindsey Ruiz | | Reply

    I have a Samsung galaxy s4. I was wondering if I switch to an iphone , if I would be able to have my same number. I know I need a nano sim, which I have, can I keep my number?

    • Bob Thompson | | Reply

      Hi Linsey,
      Yes you can. You did not mention if your S4 is using Straight Talk’s ATT, TMobile, Verizon or Sprint network and you did not mention what model iPhone you want to switch to and where are you getting the phone from.

      Switching could be as easy as moving a SIM from the current phone to the new phone, but in most cases you’ll need to transfer your current service from your current phone / sim to a new phone / SIM. See Transferring Your Existing Straight Talk Service to a New Straight Talk Phone or SIM

  3. Off-road | | Reply

    My Verizon iPhone 5 using a tmobile SIM card is getting 14 Mbps down and 2.5 Mbps up speeds. Is that LTE? For me it does not matter because that’s plenty faster than most. So iPhone 5 can go pretty fast. —- Have not tried on straight talk. As a trial month costs $45. While I pay $30 monthly.

    • Bob Thompson | | Reply

      Hi Kevin,
      That sounds could be HSPA+ or LTE, I’d think LTE. Do you see an LTE, 4G or 3G in the status bar. Are you using T-Mobile prepaid? Which plan did you get?


      • Kevin | | Reply

        T-Mobile prepaid $30 a month plan. 4G indicator in the bar.

        • Bob Thompson | | Reply

          Cool. The one with 100 minutes of talk and 5GB of data. That plan is awesome. Not sure you can still get it. For a while it was only available at walmart when you bought a phone too.

          • Kevin | |

            you can still get the $30 plan according to most. but its hidden kind of. Go buy a t-mobile simm. activate it online, and during activation process you will see the option. its the only time you will see it, with a new simm card activation.

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