Although we are used to hear about dual SIM phones today, they have been on the market only since 2007, and by 2009 there were already dual SIM Android smartphones.
For those who do not know, a dual SIM phone is a smart device that has two SIMs slots (subscriber identity module SIM), cards that securely store the identification information of the subscriber to the network.
The advantages of a device with this technology is that extends the communication possibilities for the user, makes it easy to maintain two data, messaging or call plan according to their needs.
There are also three types of devices with this technology: passive, stand-by and active. Each one with its advantages and benefits, according to what the user requires.
To learn more about dual SIM technology, we invite you to read the following infographic: