Samsung Galaxy eSIM Japan — Setup Guide & Compatible Models (2026)
Samsung Galaxy S20 and newer models support eSIM. Japan Wireless activates in under 2 minutes via QR code scan — your Galaxy connects to KDDI or NTT DOCOMO automatically when you land. Your physical SIM stays active for home calls.
Japan Wireless — Samsung Galaxy eSIM
Compatible with Galaxy S20 and newer · Dual SIM supported · QR setup
How to install Japan eSIM on Samsung Galaxy
- 1
Settings → Connections → SIM Manager
- 2
Tap 'Add SIM' or 'Add mobile plan'
- 3
Select 'Scan QR code' and scan your Japan Wireless QR code
- 4
Follow on-screen prompts to confirm installation
- 5
In SIM Manager, tap the Japan Wireless plan → set as Mobile Data
- 6
Enable Data Roaming for the Japan Wireless eSIM profile
Compatible Samsung Galaxy models
| Series | Models | eSIM support |
|---|---|---|
| Galaxy S25 series | S25, S25+, S25 Ultra | ✓ eSIM |
| Galaxy S24 series | S24, S24+, S24 Ultra | ✓ eSIM |
| Galaxy S23 series | S23, S23+, S23 Ultra | ✓ eSIM |
| Galaxy S22 series | S22, S22+, S22 Ultra | ✓ eSIM |
| Galaxy S21 series | S21, S21+, S21 Ultra | ✓ eSIM |
| Galaxy S20 series | S20, S20+, S20 Ultra | ✓ eSIM |
| Galaxy Z Fold / Flip | Z Fold 2+, Z Flip 3+ | ✓ eSIM |
Some Samsung models sold through carrier channels in specific regions may have eSIM disabled even if hardware supports it. Verify by checking Settings → Connections → SIM Manager on your device.
Frequently Asked Questions
Which Samsung Galaxy phones support eSIM for Japan?
Samsung Galaxy S20, S21, S22, S23, S24, S25 and all Plus/Ultra variants support eSIM. Galaxy Z Fold 2, 3, 4, 5, 6 and Z Flip 3, 4, 5, 6 also support eSIM. Note: some Samsung models sold in certain regions (particularly in Asia and some carrier-locked US models) may not have eSIM enabled even if the hardware supports it. Check Settings → Connections → SIM Manager — if 'Add SIM' or 'Add eSIM' appears, your device supports it.
How do I install an eSIM on Samsung Galaxy?
1. Go to Settings → Connections → SIM Manager. 2. Tap 'Add SIM' or 'Add mobile plan'. 3. Tap 'Scan QR code' and scan the QR code from your Japan Wireless email. 4. Follow prompts to confirm installation. 5. After installation, go back to SIM Manager and tap the Japan Wireless plan. 6. Set 'Mobile data' to use the Japan Wireless eSIM. Your physical SIM stays active for calls.
Can I use dual SIM on Samsung with a Japan eSIM?
Yes. Samsung Galaxy's SIM Manager supports dual SIM — physical SIM for your home calls/texts + Japan Wireless eSIM for data. Set 'Mobile data' to the Japan eSIM in Settings → Connections → SIM Manager → Mobile data preferences. This lets you receive calls on your home number without paying roaming data rates.
Why does my Samsung Galaxy show 'No service' with the Japan eSIM?
Most likely the mobile data is still assigned to your physical SIM. Go to Settings → Connections → SIM Manager → Mobile data → select the Japan Wireless eSIM. Also check that 'Data roaming' is enabled for the eSIM profile. Toggle Airplane Mode on/off after making these changes to force re-registration with the Japanese tower.
Galaxy S20 and newer — Japan eSIM in 2 minutes.
Dual SIM · Keep your home number · KDDI + DOCOMO coverage
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