vSIM is a unique service provider application developed by VinSmart in collaboration with some mobile carriers in Vietnam. It allows users to register and use mobile services such as making calls, sending text messages, accessing the internet, and much more, without the need for a physical SIM card. vSIM brings users a completely new experience, making it easier and quicker to use mobile services right from their smartphone.

The application offers several advantages to its users. Firstly, new subscription registration is completely free, and users can verify their personal information to start using the service from vSIM. Secondly, vSIM offers up to 10GB of data monthly for free for 18 months, which is an excellent offer. Additionally, users can use vSIM quickly and easily without physically removing or inserting a SIM card, making it a convenient option. Lastly, users can make calls, send text messages, and use mobile data as they would with a normal SIM card and can even switch between 4G/3G/2G networks as per their convenience.