How to Set Up and Manage Dual SIM Cards on Samsung Galaxy Devices

Learn how to activate, configure, and troubleshoot dual SIM functionality on Samsung Galaxy phones, including eSIM setup, SIM prioritization, and regional compatibility.

Dual SIM functionality allows you to use two phone numbers on a single Samsung Galaxy device, making it ideal for separating work and personal calls or using local SIMs while traveling. This guide covers how to set up and manage dual SIM cards, including physical SIM and eSIM configurations, on supported Samsung Galaxy models.

1. What Is Dual SIM and How Does It Work?

Dual SIM technology enables a Samsung Galaxy device to support two active SIM cards simultaneously. This can include:

- Two physical nano-SIM cards (dual-SIM tray).

- One physical nano-SIM card and one eSIM (embedded SIM).

- Two eSIMs (on select models).

Dual Standby mode ensures both SIMs remain active but only one can receive a call at a time.

2. Supported Samsung Galaxy Devices

Dual SIM functionality is available on select Samsung Galaxy devices, including:

- Galaxy S24, S25, S26 series.

- Galaxy Z Fold and Galaxy Z Flip series.

- Galaxy A series (select models).

Check your device's specifications to confirm dual SIM support.

3. How to Activate Dual SIM on Your Samsung Galaxy

1. Insert the physical SIM card(s) into the dual-SIM tray.
2. For eSIM activation, follow these steps:
   1. Go to Settings > Connections > Mobile Networks > SIM Card Manager.
   2. Select "Add eSIM" and follow the on-screen instructions.
   3. Scan the QR code provided by your carrier or enter the activation code.
3. Enable both SIMs under Settings > Connections > Mobile Networks > SIM Card Manager.

4. Additional Things to Check

- Ensure your device's software is updated to the latest version.

- Verify your carrier supports dual SIM and eSIM functionality.

- Confirm regional availability of eSIM services.

5. Why Dual SIM May Not Work

- Incompatible device model or region.

- Outdated software or carrier restrictions.

- Improper SIM insertion or eSIM activation failure.

6. Related Samsung Support Topics

- How to update software on Samsung Galaxy devices.

- How to switch between SIMs for calls and data.

- How to troubleshoot network connectivity issues on Samsung Galaxy phones.