eSIM and virtual numbers are two different technologies that allow users to use phone numbers without physical SIM cards. An eSIM (embedded SIM) is a chip that is embedded into a device and can be programmed to act as a SIM card. Virtual numbers, on the other hand, are phone numbers that are not tied to a physical location or device.

Let's look at how you can use both functions and what service can give you them.
What is the difference between eSIM and SIM? With eSIM you don't need a physical SIM card to use your phone. Instead, you can activate your phone service using a QR code or an app. eSIMs are becoming increasingly popular in smartphones and other mobile devices, as they allow for more flexibility and convenience. With an eSIM, you can switch between carriers without needing to physically swap out SIM cards.
What is a virtual sim card? Virtual numbers are usually cloud-based and can be accessed through an app or web portal. Virtual numbers are often used by businesses that want to establish a local presence in a different area code or country without actually having a physical office there. They can also be useful for individuals who want to keep their personal phone number private while still being able to make and receive calls and messages.
Parametr | Temporary (Virtual) Number | eSim (embedded-SIM) | Real phone number (Physical Sim) |
|---|---|---|---|
Anonymity | 100% Anonymous, provided that you do not use free services for renting a phone number | All data about the eSim owner is known by the mobile operator | If you signed a contract with a mobile operator and were in their office, then there is no anonymity. |
Calls | SMS only | Allowed | Allowed |
Availability of a plastic card | A one-time phone number does not need plastic cards or contracts. Just a few clicks on the OnlineSim website. | A physical SIM card is not needed. You will have free space in the SIM card slot. | There is a real SIM card that takes up space in your phone |
Security | This communication channel is not suitable for banking transactions, as another user may then receive your temporary phone number. | The virtual card cannot be lost or hacked. No one will be able to access your phone number. | You may be hacked or a duplicate of your SIM card issued. Security is average and depends on your mobile operator. |
Visiting the mobile operator's office | You can buy a virtual number anywhere in the world | Can be configured remotely via the Internet | A very long and painful process. Compulsory visits to an authorized telephone operator shop. |
SMS cost | from 10 cents per SMS | Usual cost, according to the tariffs of your cellular network | Usual cost, according to the tariffs plan |
Where can this be applied? | registration on sites, social networks, sites for adults, casinos, service sites | Personal use, online banking, phone calls, video calls, real estate transactions, interaction with government authorities, trawel, tablets use | Personal use, phone calls, video calls, interaction with government authorities |
Why use eSIM? There are several advantages of using eSIM and virtual numbers compared to traditional SIM cards and real numbers:
There are various opportunities and examples of using eSIM and virtual numbers in different areas:
OnlineSim is a website that offers virtual numbers for registration in various services, such as social media platforms, messaging apps, and online marketplaces. Follow this step-by-step guide.
You should definitely watch our video about the advantages of buying a fake phone number from us 👇