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zorinlynx

macrumors 604
Original poster
May 31, 2007
7,201
13,778
Florida, USA
My new iPhone 11 Pro arrives Friday and I'm planning to just move my SIM card from my 7 Plus (bought in 2016) to the new phone.

This will likely work fine, but I wonder if there's been any changes in AT&T SIM cards that would benefit me to get a new one? I remember when I last moved a SIM card (from an iPhone 5 to a 6) I ended up missing features that required a new SIM card, namely VoLTE and WiFi calling.

Upgrading my SIM card is something I can do on my own time later, so it's not urgent; I'm just curious.
 

Lobwedgephil

Contributor
Apr 7, 2012
5,432
4,267
My new iPhone 11 Pro arrives Friday and I'm planning to just move my SIM card from my 7 Plus (bought in 2016) to the new phone.

This will likely work fine, but I wonder if there's been any changes in AT&T SIM cards that would benefit me to get a new one? I remember when I last moved a SIM card (from an iPhone 5 to a 6) I ended up missing features that required a new SIM card, namely VoLTE and WiFi calling.

Upgrading my SIM card is something I can do on my own time later, so it's not urgent; I'm just curious.

Same SIM card.
 

lsara

macrumors regular
Apr 14, 2015
101
89
New SIM required with the new phone.
 

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Lammy

macrumors regular
Oct 27, 2013
211
218
My new iPhone 11 Pro arrives Friday and I'm planning to just move my SIM card from my 7 Plus (bought in 2016) to the new phone.

This will likely work fine, but I wonder if there's been any changes in AT&T SIM cards that would benefit me to get a new one? I remember when I last moved a SIM card (from an iPhone 5 to a 6) I ended up missing features that required a new SIM card, namely VoLTE and WiFi calling.

Upgrading my SIM card is something I can do on my own time later, so it's not urgent; I'm just curious.

SIM cards are free most places. A safe practice is to use a new SIM each time you get a new phone. SIM cards are basically miniature electronic devices that can go bad over time.
 
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Colonel Badger

macrumors 6502
Jun 30, 2008
360
45
I actually wonder whether this year you’ll activate using the eSIM leaving the SIM slot empty? AT&T already support eSIM, so it would make sense and mean you can use the SIM for a secondary line.

Thoughts ?
 

velocityg4

macrumors 604
Dec 19, 2004
6,795
3,938
Georgia
I'm curious what new features did you get with a new SIM card? (nevermind just noticed you got VOLTE and WiFi calling)

I've been using the same SIM Card since 2006 with T-Mobile. I just used a punch tool to make it a nano SIM. I've just seen them as a network identifier for your account. I know they were used for storage of contacts and such. But haven't used it for that purpose since my first smartphone.

Edit: Now I'm wondering if I should get a new SIM Card. Whenever I enable WiFi calling. The audio cuts out most of the time on calls. I can't hear them but they usually hear me. Happened whether I was connected to WiFi or not. The odd part being it was just a problem using the built in speaker. Headsets worked fine. I just figured WiFi calling on T-Mobile with iPhones stunk and never bothered turning it on again. Then left it off on Android.
 
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dave006

macrumors 68040
Jul 3, 2008
3,466
729
Just West of East
This will likely work fine, but I wonder if there's been any changes in AT&T SIM cards that would benefit me to get a new one? I remember when I last moved a SIM card (from an iPhone 5 to a 6) I ended up missing features that required a new SIM card, namely VoLTE and WiFi calling.

Upgrading my SIM card is something I can do on my own time later, so it's not urgent; I'm just curious.
No you don't need to use the new NANO-SIM that is shipped preinstalled in your new iPhone. If you ordered it as an "upgrade" then the new NANO-SIM information is already setup on your AT&T account and is ready to be activated when you turn on your new iPhone.

The possible bad news is that the activation servers are often overloaded during major launch days and it may take several hours or even overnight to get your new iPhone to be able to make / receive calls. If you just swap in your old NANO-SIM before you turn on your new iPhone it will be running right away.

Note: You are correct about SIM cards needing to be updated when specific new features are made available by major carriers however nothing is needed at this time.

Dave
[doublepost=1568810844][/doublepost]
New SIM required with the new phone.
Note the information you provided indicated that new iPhone 11/Pro use a NANO-SIM and is not compatible with the use of older Micro-SIM cards. The OP has a NANO-SIM currently in their iPhone 7 so it is compatible.

Dave
[doublepost=1568810930][/doublepost]
Why not activate the SIM that comes with the device?
The activation servers are often overloaded on launch day and it can be a pain to get activation completed during these days when what seems like the entire customer base is upgrading...

Dave
 

bruinsrme

macrumors 604
Oct 26, 2008
6,662
2,433
My new iPhone 11 Pro arrives Friday and I'm planning to just move my SIM card from my 7 Plus (bought in 2016) to the new phone.

This will likely work fine, but I wonder if there's been any changes in AT&T SIM cards that would benefit me to get a new one? I remember when I last moved a SIM card (from an iPhone 5 to a 6) I ended up missing features that required a new SIM card, namely VoLTE and WiFi calling.

Upgrading my SIM card is something I can do on my own time later, so it's not urgent; I'm just curious.
Best and easiest thing to do is pop into an Apple store, ask the specialist to pull up the listing of att sims on the Isaac.
I recall att having one for the phone and one for iPad.
All the other carriers sprint and t mobile for sure and maybe Verizon had model based sims.
 
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