iphone esim

I have an iPhone 12PM using AT&T here in US. I have travel eSims which I keep active for 2 other countries that I visit, and these international numbers work in roaming mode here in the US. So if I decide to upgrade to a new iPhone 15 in the US, will all 3 eSims transfer over to my new phone...

Hi all, I usually join the PB at around this point and just wanted to double-check something. In the past, having gone through the remaining betas, once the public release was out for all, I would always restore my devices, wanting to clean up any remaining beta stuff still lingering. Kind of...

I have a free phone line which we use on a Mifi device. Can that be used on another phone as an eSim on sometimes while the physical SIM is still being used on the mifi sometimes? As long as they are not used at the same time?

I have an iPhone 12 Pro Max with a physical and eSIM (both on AT&T in the US). On most nights (not all) between 3am-6am I lose service on both lines. I'm still connected to WiFi and Bluetooth and this never happens at any other time and my phone is always in the same place (my bedside table)...

I've seen a couple of posts wherein people have referred to a "chip" on the iPhone that stores eSIM information. Do we know whether there is any processor overhead associated with the use of an eSIM and the A12? If there is even a tiny, incremental overhead, or even a theoretical overhead, I...