ASUS Zenfone Series

ASUS Zenfone 9 and Zenfone 10 bring full Android flagship performance to a compact form factor that stands out in a market dominated by large-screen phones. Both support eSIM in select markets — primarily Europe — alongside a physical nano-SIM, giving travelers a dual-SIM setup in a phone that fits in any pocket.

Key Takeaways

• Zenfone 9 and Zenfone 10 support eSIM in select markets.
• Physical nano-SIM slot retained — not eSIM-only.
• Compact ~5.9-inch form factor — uncommon in Android flagships.
• eSIM availability primarily on European regional variants.
• Carrier unlock required for third-party eSIMs.

Does ASUS Zenfone Have eSIM?

ASUS Zenfone 9 and 10 support eSIM in European and select international markets. eSIM availability on Zenfone is regional — variants sold in different markets may or may not include the eSIM hardware even with the same model name.

To confirm your specific device: go to Settings → Mobile network. If "Add eSIM" or "Manage eSIM" is visible, your variant supports it.

ASUS Zenfone eSIM Compatibility

eSIM availability is most reliable on European Zenfone variants. Confirm eSIM support before purchase if eSIM is required.

How to Activate eSIM on ASUS Zenfone

1. Open Settings.
2. Tap Mobile network (or SIM management).
3. Tap Add eSIM or Manage eSIM.
4. Select Scan QR code.
5. Point the camera at the Roamix QR code — arrives by email within 60 seconds of purchase.
6. Follow the on-screen prompts to download and install.
7. Go back to SIM management and set the Roamix eSIM as your preferred data SIM.
8. Enable Data Roaming for the Roamix SIM.

ASUS Zenfone: The Compact Flagship Advantage for Travelers

Most Android flagships in 2022–2024 exceed 160mm in length. The Zenfone 9 (148.9mm) and Zenfone 10 (146.5mm) are among the smallest flagship-class Android phones available. For travelers, this matters:

• Pocket security: A compact phone is less visible and easier to keep out of sight in crowded areas.
• One-hand use: Full Snapdragon 8 Gen performance with a screen reachable by one hand — useful for maps, boarding passes, and translations.
• Gimbal camera: Both Zenfone 9 and 10 include a 6-axis gimbal stabilizer in the main camera — significantly better stabilization for travel video than most phones at this size.

ASUS Zenfone vs ASUS ROG Phone for eSIM

ASUS makes two distinct phone lines: Zenfone (general/travel use) and ROG Phone (gaming). Only Zenfone supports eSIM. ROG Phones prioritize active cooling, high-refresh gaming displays, and oversized batteries — eSIM is not included. If you're considering an ASUS phone for travel, the Zenfone series is the right choice.

ASUS Zenfone eSIM for International Travel

Roamix works with any unlocked Zenfone that supports eSIM. Purchase a plan before departure, scan the QR code on Wi-Fi, and the Zenfone connects to local partner networks when you arrive.

ASUS Zenfone eSIM Troubleshooting

No "Add eSIM" in Mobile network: Your Zenfone variant does not have eSIM support, or the device is carrier-locked. This is the most common issue on Zenfone models purchased outside Europe. Settings → Mobile network is the definitive check.

eSIM installed but no signal abroad: Go to SIM management, confirm Roamix is set as data SIM, and enable Data Roaming. Toggle Airplane Mode off/on to force network re-registration.

ASUS ZenUI eSIM menu location: Depending on the ZenUI version, the eSIM management may be under Settings → Mobile network → eSIM management or Settings → Connections → SIM management. If you can't find it, search "eSIM" in the Settings search bar.

QR code scan fails or "invalid QR code": Ensure the device is connected to Wi-Fi during the scan — mobile data alone is insufficient for eSIM provisioning. If the camera scan fails, use the "Enter activation code" option within the eSIM setup flow and type the SM-DP+ server address and activation code from your Roamix confirmation email manually.