Android 13 gets a huge improvement. Allows you to use two SIM cards on one eSIM

Dual SIM smartphones have been a wish in the past, but over time they have become a regular part of our lives. We are currently at a stage where each new model offers the option of using two SIM cards. Manufacturers practically no longer represent single-pin smartphones.

eSIM and a bit of history

If we were to deal with the problem of two SIM cards in more detail, we would find that it is not that simple. There are several ways in which individual manufacturers approach functionality. We have smartphones on the market that offer two dedicated slots for two SIM cards and even a third for a memory card.

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A worse solution is when the smartphone offers two SIM card slots, but the other is shared with the memory card slot. This means that the user must decide whether to use just two SIM cards or to prefer one SIM card and a memory card.

Samsung e.g.
Samsung Galaxy S22 and eSIM Zdroj: Miroslav Schwamberg

The latest trend is eSIM functionality. In this case, the necessary hardware is already directly in the smartphone and you just need to get the software from the operator. eSIM functionality is also supported by our operators, you just need to request such a virtual card.

The truth is that eSIM is combined with a physical SIM card in the vast majority of smartphones. We have seen in the past attempts by manufacturers to omit the physical slot altogether, but later they have returned to it. An example is the Motorola razr folding smartphone.

One eSIM, two operators

eSIM undoubtedly brings several benefits and with the latest Android 13 it will be even better. Portal Android Police pointed out the fact that this operating system will also bring the possibility to use two operators on one eSIM card at the same time. Dual SIM functionality is slowly but surely moving into the virtual environment.

The new solution from Google uses multiple enabled profiles (MEP), which in translation means that it allows multiple profiles on one chip, in this case two. Interestingly, everything happens at the software level.

subtitle operators
Source: Miroslav Schwamberg

In practice, this could mean that if the manufacturer updates an eSIM-enabled smartphone on Android 13, this functionality should also be added, as nothing changes at the hardware level. While there is only one connection left between the eSIM component itself and the other hardware of the smartphone (as it is now), communication between multiple profiles can take place in the eSIM component itself.

eSIM already allows the functionality of several profiles on one chip, but only one can be active at a time. This means that the new one will always replace the previous one.

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