Yes. Modern phones that support eSIM also support Dual SIM. With one physical SIM in the tray and one eSIM installed, your phone keeps two lines active at once: the home line for calls and SMS, the travel eSIM for data. Most flagship phones since 2020 support this setup without any extra steps or workarounds, and many since 2022 even support two active eSIMs without a physical SIM.

What having Dual SIM means in practice

Dual SIM is your phone’s ability to connect to two mobile networks at once and keep both lines ready to route traffic based on type. One line can carry data, another voice, another SMS — or any split of the three. The line you designate as “default data” is the one through which all the phone’s Internet traffic flows. The other lines stay registered on the network and available for inbound calls and messages.

Three configurations are common among travelers:

• Physical SIM plus eSIM. The most common. Your home carrier SIM in the tray; a travel eSIM profile installed as the second line.
• Two eSIMs, no physical SIM. From iPhone 13 onward and on 2022-2024 Android flagships, you can keep two eSIMs active at the same time without a physical card. Useful if your phone has no SIM tray or if you prefer not to handle any hardware.
• Physical SIM plus two eSIMs. Valid combination on iPhone 13+ and on many recent Android devices. SIM in the tray plus two eSIM profiles installed. Three lines total, two active at the same time.

In the operating system settings you can choose which line carries data, which carries voice, and which carries SMS. Switching is hot: changing the data line to the other eSIM takes less than a second. Your phone does not reboot and does not lose connectivity during the switch.

How iPhone behaves with Dual SIM

iPhone XS and later support eSIM; before that, iPhones used a single physical SIM. From iPhone 13 onward, iOS supports two eSIMs active simultaneously and lets you install more profiles in storage without a physical card. The settings live in Settings > Mobile Data.

On an iPhone Dual SIM setup you can configure three independent parameters:

• Default data line. Defines which line carries the Internet traffic. The other line stays available for calls and SMS only.
• Default voice line. If someone calls your home number and the home line is active, the phone rings on it. When you call a contact, the outbound caller ID shows the default voice line’s number.
• SMS line. A single number can be the default recipient for new messages. You can override it on a per-message basis from the Messages app.

FaceTime, iMessage, and WhatsApp calls and messages use the default data line, not the voice line. If your data line is the travel eSIM and the voice line is the home one, SMS to your usual contacts go through the home line (your usual number), but WhatsApp messages travel over the eSIM and consume your travel data plan.

How Android behaves with Dual SIM

Android’s behavior varies more across manufacturers and models than iPhone’s, because Android runs on many different devices. The general structure is the same: in Settings > SIM cards or Settings > Mobile Networks you pick the default data line and the default voice line.

Things to keep in mind by manufacturer:

• Google Pixel (3 onward). Supports eSIM; from Pixel 7 onward it supports two eSIMs at once with the tray empty. The SIM settings UI is clean and direct.
• Samsung Galaxy (S20 onward, all Z Fold/Flip). Supports eSIM; on 2022+ flagships two eSIMs can be active. Some mid-range models support eSIM but only when the tray is empty.
• Xiaomi (Mi 12 onward). eSIM present on most flagships. Integration varies: some models have eSIM disabled by default until the carrier enables it via configuration.
• Motorola (recent Edge and Razr). eSIM supported on most models. Compatible with classic Dual SIM (physical SIM + eSIM).
• OnePlus (9 onward). eSIM support on recent flagships, with the caveat that on global firmware versions the options show up under Settings > Wi-Fi and networks > SIM and mobile network.

In every case, the configuration flow is similar: insert or have a second line installed, open Settings, designate data line, voice line, and SMS line.

The special case of two eSIMs without a physical SIM

On iPhone 13 onward, on Pixel 7 onward, and on recent Samsung and Xiaomi flagships, you can have two eSIMs active at the same time without a physical card. This covers three practical scenarios:

• Your phone has no SIM tray. Models like iPhone 14 and successors in the United States ship without a tray; Dual SIM is exclusively via eSIM.
• You want to ditch the physical SIM for convenience. Some travelers prefer not to handle any trays and keep everything in digital profiles.
• You need three numbers on a single device. Some professionals need a home line, a corporate line, and a travel line on the same phone. With two eSIMs active and a third saved profile (or a SIM in the tray), you cover up to three lines.

The profile storage quota varies by manufacturer:

• iPhone 13 to 14: up to 8 stored profiles, 2 active.
• iPhone 15 and successors: up to 10 stored profiles, 2 active.
• Pixel 7 and successors: up to 5 stored profiles, 2 active.
• Samsung Galaxy S22 and successors: up to 5 stored profiles, 2 active.

Once you hit the limit, the phone forces you to delete a profile before installing a new one. That is why providers recommend removing old profiles once you no longer use them.

Real-world travel use case: the typical Dual SIM setup

When you travel to a specific destination, Dual SIM gives you three concrete benefits. First, your home line stays in the tray (or as a saved eSIM) but does not connect to the visited network, so you do not accumulate roaming charges. Second, your home number keeps ringing for calls and messages, so WhatsApp, Signal, and iMessage continue to work with your usual contacts. Third, all data traffic exits through the destination eSIM at the provider’s local or regional rates, with no surprises on your home operator’s bill.

In a destination with two or three local operators and good coverage, the phone will attach to whichever network has the strongest signal at any given moment. The quality of the data experience depends on the plan you chose and on the local network, not on whether your data line is an eSIM or a physical SIM.

If your itinerary crosses borders within the same region, regional plans cover several countries under a single profile, which simplifies everything: one eSIM, one activation, several countries. No individual profiles per country and no reinstallation at the border.

When Dual SIM with eSIM does not save you

Three cases where Dual SIM does not solve the travel problem:

• Your phone does not support eSIM at all. Models older than 2018 in most ranges; some Chinese-market models with firmware that omits eSIM; devices from operators that lock the chip. If your model is in this group, you need a local physical SIM or a pocket WiFi, there is no Dual SIM with eSIM possible.
• Your home line has mandatory and expensive roaming. Even if the home line sits in the tray, if your operator does not let you disable data roaming or charges per MB, it may be better to remove the home SIM while you are abroad and leave only the travel eSIM active.
• The destination country blocks foreign eSIMs by regulation. Some countries with strict identification rules may not accept eSIMs that have not gone through local channels. In those cases a local physical SIM remains the only path out.

Always double-check with the compatible phones list before buying the plan: if your model is not listed, no Dual SIM configuration will work for you.