Samsung Galaxy S23 Series

The Samsung Galaxy S23 series — S23, S23+, S23 Ultra, and S23 FE — all support eSIM. Released in 2023, the S23 series introduced Dual eSIM to the Galaxy S lineup, allowing two eSIM lines to be active simultaneously.

Key Takeaways

• Galaxy S23, S23+, S23 Ultra: Dual eSIM (two active lines simultaneously).
• Galaxy S23 FE: one active eSIM at a time.
• Physical nano-SIM slot retained on all models.
• Device must be carrier-unlocked for third-party eSIMs.

Does the Galaxy S23 Support eSIM?

Yes. All Galaxy S23 models support eSIM. The S23 series was the first Galaxy S generation to support Dual eSIM — two eSIM lines active at the same time alongside the physical SIM. On S20, S21, and S22, only one eSIM was active at a time.

The S23 FE (Fan Edition) supports eSIM but does not have Dual eSIM — one active eSIM at a time, same as earlier Galaxy S generations.

Galaxy S23 Models and eSIM Compatibility

How to Activate eSIM on Galaxy S23

1. Open Settings.
2. Tap Connections, then SIM Manager.
3. Tap Add eSIM (or Add Mobile Plan).
4. Select Scan QR Code and point your camera at the Roamix QR code.
5. Tap Confirm and wait for the eSIM to install.
6. In SIM Manager, set the Roamix eSIM as your preferred data SIM.

Using Two Lines on Galaxy S23

S23, S23+, and S23 Ultra support Dual eSIM plus a physical SIM. For travel:

• Home carrier: Calls and texts. Data disabled.
• Roamix eSIM: Preferred data SIM. Data Roaming on.

On the S23 FE, one eSIM is active at a time alongside the physical SIM.

Galaxy S23 eSIM for International Travel

Roamix works with any unlocked Galaxy S23. Purchase a plan, scan the QR code, and your Samsung connects to local networks when you arrive.

Carrier lock check: Settings → General Management → Device Information → IMEI status. Contact your carrier to request an unlock.

Galaxy S23 eSIM Troubleshooting

"Add eSIM" option missing: Carrier lock or regional hardware limitation. Chinese mainland and South Korean S23 variants have no eSIM hardware. Check Settings → About phone → Model number to identify your variant.

eSIM installed but no signal abroad: Confirm Roamix is set as the preferred data SIM in SIM Manager. Enable Data Roaming for the Roamix SIM. Toggle Airplane Mode on/off.

S23 FE Dual eSIM limitation: The S23 FE supports only one active eSIM at a time. For two simultaneous active eSIM lines, you need the S23, S23+, or S23 Ultra.