Android Dual SIM Setup for Travel (2026)

Which Android phones support eSIM?

eSIM support depends on both the hardware and your carrier. Here are the major families that work:

• Google Pixel 3 and later — all Pixel phones since the Pixel 3 (2018) have eSIM. The Pixel 7 and later support dual eSIM (no physical SIM tray at all on Pixel 9+).
• Samsung Galaxy S20 and later — including the S21, S22, S23, S24, S25 series, plus the Galaxy Z Flip and Z Fold lines. The Galaxy A series (budget) generally does not support eSIM.
• OnePlus 12 and later — OnePlus added eSIM starting with the 12 (global variant). Earlier models lack support.
• Xiaomi 13 Pro, 14, and select flagships — availability varies by region and carrier. Chinese domestic variants typically disable eSIM.

Carrier-locked phones: Even if the hardware supports eSIM, some carriers lock the eSIM slot to their own network. If you don't see an “Add eSIM” option in your SIM settings, contact your carrier to confirm whether the slot is available for a third-party eSIM.

Before you start

Complete the setup on home Wi-Fi before your trip. You'll need:

1. A travel eSIM QR code or activation link (you receive this after purchase).
2. A stable Wi-Fi connection — the phone downloads a small profile during setup.
3. Your phone updated to the latest OS version (older firmware can have eSIM bugs).

Validity on most travel eSIMs begins when you first connect to a network abroad, not when you install the profile — so installing early costs you nothing.

Samsung Galaxy — step by step

Samsung is the most popular Android brand worldwide, so we'll cover it first. These steps apply to One UI 6 and later (Galaxy S23, S24, S25, Z Flip 5/6, Z Fold 5/6).

1. Add the eSIM

Settings → Connections → SIM manager → Add eSIM → Scan QR code. Point the camera at the QR code provided by your eSIM provider. The phone downloads the profile in 30–60 seconds. Give the new line a label like “Travel” so you can tell them apart.

2. Set mobile data to the eSIM

Settings → Connections → SIM manager → Mobile data → [Travel eSIM]. This tells the phone to route all internet traffic through the travel line.

3. Set calls and SMS to your home SIM

SIM manager → Calls → [Home SIM]. SIM manager → Text messages → [Home SIM]. Outgoing calls and texts use your real number. Incoming calls to your home number keep arriving as normal.

4. Turn off data roaming on your home SIM

Settings → Connections → Mobile networks → [Home SIM] → Data roaming → Off. This prevents your home carrier from routing any data through a foreign network — the single most important step for avoiding surprise charges.

5. Turn on data roaming for the eSIM

Settings → Connections → Mobile networks → [Travel eSIM] → Data roaming → On. The travel eSIM registers as “roaming” in every country it visits. Without this toggle on, the eSIM has data allowance but refuses to connect.

6. Disable auto data switching

SIM manager → Auto data switching → Off. Samsung's auto-switch feature will silently fall back to your home SIM if the eSIM loses signal briefly — and your home carrier bills you per megabyte abroad. Turn it off.

7. Enable Wi-Fi Calling on your home line

Settings → Connections → Wi-Fi Calling → [Home SIM] → On. With Wi-Fi Calling active, your home number rings in over hotel or cafe Wi-Fi at no roaming cost. SMS (including bank 2FA codes) also arrives over Wi-Fi.

Google Pixel — step by step

Pixel uses stock Android, so the menus are slightly different from Samsung. These steps apply to Pixel 6 and later running Android 14+.

1. Add the eSIM

Settings → Network & internet → SIMs → Add (+ icon) → Download a SIM instead? → Next → scan QR code. The phone downloads the profile and asks you to name it. Label it “Travel”.

2. Set mobile data to the eSIM

Settings → Network & internet → SIMs → [Travel eSIM] → toggle “Use for mobile data” on. Alternatively: SIMs → Mobile data → [Travel eSIM].

3. Set calls and texts to your home SIM

Settings → Network & internet → SIMs → Calls preference → [Home SIM]. SMS preference → [Home SIM].

4. Roaming toggles

SIMs → [Home SIM] → Roaming → Off. Then SIMs → [Travel eSIM] → Roaming → On. Same logic as Samsung: block your home line from foreign towers, allow the eSIM to connect.

5. Wi-Fi Calling

Settings → Network & internet → SIMs → [Home SIM] → Wi-Fi Calling → On. Pixel may also show this as “Wi-Fi preferred” under the calling preference section.

OnePlus, Xiaomi, and other brands

The general flow is identical. The menu path typically looks like:

• OnePlus (OxygenOS 14+): Settings → Mobile network → SIM & eSIM → Add eSIM → scan QR. Then set data to the eSIM, calls/SMS to home SIM, roaming toggles as above.
• Xiaomi (HyperOS): Settings → Mobile networks → eSIM management → Download eSIM → scan QR. Data/calls routing is under the same Mobile networks menu.

If your brand isn't listed, search Settings for “eSIM” or “SIM manager” — every eSIM-capable Android phone exposes the same core options under slightly different names.

Setting summary — every toggle at a glance

Troubleshooting

eSIM won't connect after landing

Toggle Airplane Mode on, wait five seconds, toggle it off. This forces a fresh network scan and fixes 90% of “no service” issues on the travel line.

QR code won't scan

Make sure you're scanning from the SIM settings screen, not the regular camera app. If the code still fails, look for a “Enter activation code manually” option — you can paste the SM-DP+ address and activation code directly.

Carrier-locked phone blocking eSIM

Some carriers (especially on contract phones) disable the eSIM slot for third-party profiles. Contact your carrier and ask them to unlock the eSIM functionality. In some regions this is a legal right after the contract period ends.

Battery considerations

Running two SIMs in active standby uses roughly 10–15% more battery per day. On long travel days where you don't need calls, you can temporarily disable the home SIM to save power and re-enable it at the hotel.

FAQ

Which Android phones support eSIM?

Most flagship Android phones from 2020 onward support eSIM. This includes Google Pixel 3 and later, Samsung Galaxy S20 and later (plus Z Flip/Fold series), OnePlus 12 and later, and select Xiaomi flagships. Carrier-locked phones may have eSIM disabled — check with your carrier or look for the “Add eSIM” option in Settings.

Can I keep my home number active while using a travel eSIM on Android?

Yes. The dual SIM setup keeps your home SIM active for calls and SMS while the travel eSIM handles all mobile data. Set your home line as the default for calls and SMS, and assign mobile data to the travel eSIM. With Wi-Fi Calling enabled on your home line, calls and texts arrive free over Wi-Fi.

Will I get roaming charges if I have a travel eSIM installed?

Not if you configure it correctly. Turn off data roaming on your home SIM so it cannot use foreign networks for data. Turn on data roaming for the travel eSIM (required because the eSIM registers as roaming abroad). Set mobile data to the eSIM line. With this setup, your home carrier has no way to bill you for data.

My phone says “Add eSIM” is greyed out. What do I do?

Three common causes: (1) your phone is carrier-locked and the carrier has disabled eSIM — contact them to unlock it; (2) your phone model does not support eSIM (budget phones often lack it); (3) a software update is required before the eSIM menu appears. Check your phone's IMEI on the manufacturer's compatibility page to confirm support.

Related guides

• Keep Your Phone Number Abroad: The Complete Guide (2026) — the pillar guide covering the full dual-SIM + Wi-Fi Calling strategy
• Wi-Fi Calling + Travel eSIM Setup — deep dive into Wi-Fi Calling configuration for both iPhone and Android
• iPhone Dual SIM Setup for Travel (2026) — the equivalent guide for iPhone users
• Browse eSIM plans by destination — 200+ countries, instant QR delivery
• Travel eSIM vs. Carrier Roaming — cost breakdown showing why a travel eSIM saves 80–95% vs roaming