An eSIM is an industry-standard digital SIM that allows you to activate a cellular plan from your carrier without having to use a physical SIM.  

The following phones manufactured after 2019 support eSIM:

• Apple iPhone Xr, Xs
• Pixel 4
• Samsung Fold
• Huawei P40

Lists:

iPhone 14 Pro Max, iPhone 14 Pro, iPhone 14 Plus, iPhone 14, iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13 mini, iPhone 13, iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12 mini, iPhone 12 , iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone XS, iPhone XS Max, iPhone XR, iPhone SE 3 (2022), iPhone SE 2 (2020), iPad Pro 11" (after 3rd gen), iPad Pro 12.9" (after 3rd gen), iPad Air (after 1st gen), iPad (after 7th gen), iPad mini (after 5th gen), Arrows A101 FC, Google Pixel 7 Pro, 7, 6 Pro, 6 , 6a, 5, 4, 4a, 4 XL, HONOR Magic 4 Pro, Huawei P40, P40 Pro, Mate 40 Pro, Nokia G60 5G, X30 5G, Nuu X5, Rakuten Mini, Big‑S, Big, Samsung Galaxy Fold, Note20, Note20 Ultra, S23, S23+, S23 Utra, S22, S22+, S22 Ultra, S21 5G, S21+ 5G, S21 Ultra 5G, S20, S20+, S20 Ultra, Z Flip, Z Fold 2, Z Fold 3 5G, Zold 4, Z Flip 3 5G Fold, Z Flip 3 5G, Z Flip 4, Sharp AQUOS sense4 lite, Sony Xperia 10 III Lite, 1 IV, 5 IV, 10 IV, Xiaomi 12T Pro, Oppo Find N2 Flip, Find X3 Pro, X5 Pro, Reno 5A, Reno 6 Pro, Surface Duo, Gemini PDA, Microsoft Surface Pro X…

IOS:

Settings -> Cellular –> Add eSIM read QR code by using phone camera

and also you cand watch video link below

Watch the how-to video

Android:

1. Settings цэс -> Network & Internet
2. Mobile Network
3. Add carrier 
4. Read QR code by camera
5. press Start

please note that the QR code must be scanned and activated when you online

Please note that the service period starts when you scan the QR code on your device.

Please note that eSIM card days are calculated in Ulaanbaatar city time. For example: if you activate eSIM at 23:00 Ulaanbaatar time, the first one day will be considered to be over after 1 hour.

Please note that during international roaming, in order to ensure the best quality of service, the transition between the networks of several operators in the country is carried out, so in most cases it is not possible for the user to check the balance himself.

However, you can check the data usage section of your mobile phone.

Please note that it is an eSim card for international roaming services and cannot be installed in another device

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