US esim and Japan esim can use same time? -Dual Sim

I have iPhone 12 ( unlocked , purchased from apple store and using version ) and I would like to use esim when I get Japan (maybe from ahemo ) as dual esim. Is it possible ? While in Japan I only use Japan line not use US version number…Please advice.

iPhone 12, iOS 15

Posted on Jan 19, 2023 6:30 PM

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Question marked as Top-ranking reply

Posted on Jan 19, 2023 6:40 PM

I understand that you are using a carrier unlocked iPhone 12 on the Verizon network in the US. I also understand that you will be going to Japan and would be using an eSIM provided by a Japanese carrier. YES, the iPhone 12 will function with the Dual SIM setup that you have proposed.


Axel F.

5 replies

Jan 21, 2023 2:14 AM in response to SravanKrA

That is a great point SravanKrA, and you are correct that the iPhone 12 will work with DUAL SIM (one Physical SIM and one eSIM). This means that if you have two eSIMs then only one line will work at a time, however, the other will still be saved and can be set to ON later while the other will be OFF. The iPhone 13 and newer will work with two eSIMs (DUAL eSIM).


Have said all that, the Author posted that, “ While in Japan I only use Japan line not use US version number”, I therefore started that this setup will work on the iPhone 12 because one of the eSIMs (US version number) will be OFF and the Japanese eSIM will be ON.


Axel F.

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US esim and Japan esim can use same time? -Dual Sim

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