Apple has recently launched the new iPhone 14 models, and one of the big news is the total renunciation of the physical SIM card and the passage to ESIM. Dual eSIM. For many users Esim is an unknown technology and asks "What is Esim and how is it activated?“.
This novelty is a blow for many Apple fans subscribed to mobile networks that have not yet implemented support for ESIM technology. iPhone 14, iPhone 14 Plus, iPhone 14 Pro and iPhone 14 Pro Max will not be able to integrate and connect into mobile networks without ESIM support.
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Let's see what Esim is and how it is activated on the iPhone or other smartphones
Esim is a relatively new technology that replaces the SIM (SIM card) physical card with a SIM incorporated on the motherboard of the phone. eSIM (embedded-SIM) ofera Quick support when activating the phone number on the iPhone or to Transfer of phone number to another iPhone or Smartphone with Suport ESIM.

Apple first introduced Esim on Apple Watch Series 3 (GPS + Cellular) In September 2017, after one year to introduce eSIM pe iPhone Xs, iPhone Xs Max si iPhone XR.
Esim advantages
1. Users no longer need physical SIM cards, which can be lost, can be damaged mechanically and are of different sizes, which sometimes require adapters or SIM card cutting to fit in the slot. e.g is incorporated into the motherboard of iPhone sau smartphone.
2. Activating a phone number (or more) on ESIM is very simple from anywhere, without having to travel to a point of the mobile or partner phone operator. All you have to do to activate a phone number on ESIM, is to ask the operator the QR code for activating ESIM profile. You can do this online and the process does not last more than 3 minutes. Connect iPhone to a Wi-Fi network, open the camera application and straighten the objective to the QR code generated by the mobile operator. In just a few seconds on the iPhone, the ESIM profile of the phone number will be installed.
3. On the devices with ESIM you can activate several phone numbers. Service or business phone, personal phone number and a phone number from another country to use on vacation or leave.
On the iPhone 14 with Dual Esim you can use both ESIM phone numbers simultaneously. The classic and "single" ESIM will have to manually switch from one ESIM profile to another. I mean on another phone number.
4. If you lose or stole an iPhone or smartphone with ESIM, in just a few minutes you can have the phone number installed on another device. Most mobile operators offer online support for activating, deactivating and transferring ESIM on other devices. Enter your operator's account, disable Esim from lost iPhone and generate a new QR code with ESIM profile for another device.
5. Get rid of phone numbers stored on SIM. Some would say that it is a disadvantage that ESIM does not provide storage support for the phone numbers. I would say it is a great advantage. First of all, the physical SIM offers a storage space of up to about 250 phone numbers. Not infrequently, it happened to have friends or family who lost their agenda with the phone numbers following the degradation of the SIM card.
How to activate Esim on the iPhone?
After you have obtained the QR code for the ESIM profile for your phone number, go on iPhone in: Settings → Cellular → Add eSIM.

Scan the QR code and follow the steps to complete the ESIM profile installation. As you can see, you also have the possibility of transfer from one iPhone to another.
"What is Esim and how to activate?" It is useful for both iPhone and other ESIM compatible smartphones.
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