eSIMGuide - Compare Travel eSIM Plans

Does the Xiaomi Watch S3 support eSIM?

Yes

The Xiaomi Watch S3 supports eSIM.

Its eSIM is set up through your mobile carrier, as a companion to the phone it pairs with.

Xiaomi logo

Xiaomi Watch S3 at a glance

Xiaomi ยท Smartwatch

eSIM
Supported
Travel eSIM
Through your carrier
Device type
Smartwatch
Manufacturer
Xiaomi

Get a travel eSIM

The destinations people are checking most this week, with the cheapest plan we track for each.

Travel eSIMs install on phones and tablets, not watches โ€” a watch's eSIM comes from the carrier that pairs it with your phone. Put the travel plan on the phone instead.

EG
eSIM Guide Team
Updated September 2026

Xiaomi Watch S3 and eSIM

Yes, the Xiaomi Watch S3 fully embraces modern connectivity with robust eSIM support, allowing you to activate cellular plans directly from your watch without needing a physical SIM. This means seamless calls, texts, and data on the go, making your Xiaomi Watch S3 a truly independent device.

The Xiaomi Watch S3 proudly supports eSIM technology, marking a significant advancement in standalone connectivity for smartwatches. This integrated digital SIM allows the device to function independently of a paired smartphone for calls, messages, and data, even when your phone isn't nearby. This capability transforms the Xiaomi Watch S3 into a truly autonomous communication device, offering unparalleled convenience for users who wish to stay connected during workouts, errands, or any situation where carrying a phone might be cumbersome. With eSIM, users can enjoy a seamless mobile experience directly from their wrist, enhancing both productivity and peace of mind.

Activating an eSIM on your Xiaomi Watch S3 is a straightforward process, typically initiated through the companion application on your paired smartphone. The general steps usually involve:

  • Opening the Xiaomi Wear app (or equivalent app for your region) on your smartphone.
  • Navigating to the device settings for your Xiaomi Watch S3.
  • Locating the eSIM or mobile network settings option.
  • Following the on-screen prompts to either scan a QR code provided by your mobile network operator or manually enter activation details.
  • Confirming your plan details and completing the activation.

This process links your chosen mobile network plan directly to your Watch S3, allowing it to register on the cellular network.

The integration of eSIM technology in the Xiaomi Watch S3 offers substantial benefits, particularly for individuals with active lifestyles or those who frequently travel. For instance, travelers can easily purchase local data plans from carriers in different countries without the need to physically swap SIM cards, thereby avoiding expensive roaming charges and ensuring continuous connectivity. Furthermore, for users who appreciate a minimalist approach, the eSIM eliminates the need for a physical SIM tray, contributing to a more streamlined and potentially more durable device design. This flexibility and enhanced connectivity underscore the Xiaomi Watch S3's commitment to providing a cutting-edge and user-centric experience in 2026.

Xiaomi Watch S3 eSIM FAQ

Yes, the Xiaomi Watch S3 fully supports eSIM technology. You can activate digital SIM cards directly on your device without needing a physical SIM card, enabling features like Dual SIM capability.

Yes, the Xiaomi Watch S3 supports Dual SIM functionality. You can use both an eSIM and a physical SIM card simultaneously, perfect for separating personal and work numbers or using local data plans while traveling.

To activate an eSIM on your Xiaomi Watch S3, go to Settings > Cellular (iOS) or Settings > Network & Internet > SIMs (Android). Select "Add eSIM" and scan the QR code provided by your carrier. The profile will download and activate within minutes.

In short

The Xiaomi Watch S3 fully embraces the convenience of eSIM technology, allowing you to enjoy seamless cellular connectivity directly from your wrist. This means you can make calls, send messages, and stay connected even when your phone isn't nearby, all without the need for a physical SIM card. It's an ideal feature for those who value independence and uninterrupted communication.

Ready to unlock the full potential of your Xiaomi Watch S3's eSIM capabilities? Here are your next steps:

  • Contact your mobile carrier: Inquire about their eSIM plans and support for smartwatches. Many carriers offer dedicated plans for wearables.
  • Explore eSIM providers: Research third-party eSIM providers that offer flexible data and voice plans, especially if you travel frequently or need a secondary line.
  • Activate your eSIM: Follow the instructions provided by your chosen carrier or provider to activate the eSIM on your Xiaomi Watch S3. This process is typically quick and straightforward.

Other Xiaomi devices with eSIM

Check on your phone

Scan to open this page on the handset you want to check.