Transfer iPhone 4 contents with failing battery to iPhone 5S

Transfer iPhone 4 contents with failing battery to iPhone 5S

Can I do this:

1. Restore iPhone 5s to factory settings
2. Full backup of iPhone 4 to iTunes 12
3. move SIM card from 4 to 5S
4. Restore iPhone 4 contents to iPhone 5S
5. Use iPhone 5S with iPhone 4 # & contents.

Should work OK?
MARSPATHRetired EE/Computers/ITAsked:
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Why not just do what EVERYBODY does when they get a new iPhone?  If the old phone is backing up to iCloud, you would just give the new phone the old phone's phone # and then restore from iCloud.
JohnBusiness Consultant (Owner)Commented:
You can also back up to iTunes. I have replaced an iPhone that way.

Be sure to hook up your iPhone to your computer and use the Windows Dialogue to copy the Camera Roll (Photos) to your computer.
Sorry, my point is that your plan will NOT work, because the 4 and the 5S take different SIM cards.  The 4 takes a micro SIM and the 5S takes a nano SIM.

So you need to call your provider and tell them that you got a new phone, and let them switch the phone number from the old phone to the new phone, then use iCloud (or iTunes) to restore the old phone's data onto the new phone.
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JohnBusiness Consultant (Owner)Commented:
iTunes does not care what SIM you have so far as I know because you are connecting with USB cable.
Yes, but he can't switch the SIM card from one phone to the other.
JohnBusiness Consultant (Owner)Commented:
True, but so long as the new phone has the same phone number it should work. Perhaps that is the point you were making?  I assumed the asker would set up the phone number first.
The original poster described his plan as including this step:

"move SIM card from 4 to 5S".

The purpose of doing this would (presumably) be to transfer the phone number from the 4 to the 5S.

My point is he cannot do this.  

If he wants to transfer the phone # from one phone to the other, he needs to contact his carrier rather than moving the SIM.  That's all I'm saying.

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JohnBusiness Consultant (Owner)Commented:
Yes, I see what you are saying. Of course you cannot move the SIM card.
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