Samsung Galaxy Z TriFold eSIM Guide

The Samsung Galaxy Z TriFold is Samsung's tri-fold flagship, released in 2025. On global variants, it supports Dual eSIM — two eSIM lines active simultaneously alongside a nano-SIM slot. The most important caveat: South Korean carrier-branded variants and mainland China/Hong Kong models do not have eSIM hardware.

Key Takeaways

• Dual eSIM: Two eSIM lines active simultaneously on global variants.
• Regional restriction: South Korea (KT/SKT/LGU+), mainland China, and HK variants have no eSIM.
• Nano-SIM + Dual eSIM: Keep your home SIM active while using a travel eSIM.
• Folding does not affect eSIM: Activation and data work in any screen configuration.

Does the Samsung Galaxy Z TriFold Support eSIM?

Yes, on global variants. The Z TriFold supports Dual eSIM — two eSIM profiles can be simultaneously active alongside the nano-SIM slot. This means you can use your home carrier SIM and a Roamix travel eSIM at the same time without swapping anything.

Regional restriction: Samsung Galaxy Z TriFold units sold in South Korea through carrier channels (KT, SKT, LGU+) and models sold in mainland China or Hong Kong do not have eSIM hardware. If you purchased your Z TriFold from a Korean carrier or through a Chinese retailer, check Settings → Connections → SIM Manager for the "Add eSIM" option before buying an eSIM.

Samsung Galaxy Z TriFold Models and eSIM Compatibility

How to Activate eSIM on Galaxy Z TriFold

1. Open Settings.
2. Tap Connections.
3. Tap SIM Manager.
4. Tap Add eSIM.
5. Scan the Roamix QR code from your email. Must be on Wi-Fi.
6. Follow the on-screen prompts to complete the download.
7. Set the Roamix eSIM as your Preferred SIM for Mobile data.
8. Enable Data Roaming for the Roamix line.

Galaxy Z TriFold eSIM for International Travel

Any unlocked global Z TriFold can run Roamix alongside your home SIM simultaneously. Purchase a plan, scan the QR code on Wi-Fi, and connect on arrival.

Carrier unlock check: Settings → General Management → Device Information → IMEI status. If "Network locked" appears, contact your carrier.

Troubleshooting Samsung Galaxy Z TriFold eSIM

"Add eSIM" missing from SIM Manager: Your device is a South Korean carrier model (KT/SKT/LGU+), mainland China, or Hong Kong variant — no eSIM hardware. Cannot be resolved by software. Confirm your variant at Settings → About phone → Model.

eSIM downloads but shows "No service" or no signal: Roamix eSIM is not set as the active data line, or Data Roaming is off. Go to Settings → Connections → SIM Manager → select Roamix → set as Mobile Data. Then enable Data Roaming for the Roamix line.

"Activation failed" or QR code rejected: Device must be carrier-unlocked. Check Settings → General Management → Device Information → IMEI status. If carrier-locked, contact Samsung or your carrier for unlock.

Stuck on "Connecting…" during download: Move to a stronger Wi-Fi connection and retry. The eSIM profile download requires a stable internet connection.