eSIM Compatible Smartwatches: Galaxy Watch, Pixel Watch, Garmin & Huawei (2026)

Smartwatch eSIM Uses Number Sharing, Not Independent Profiles

Unlike phone eSIM, where you can install a profile from any provider, smartwatch eSIM almost always works through "number sharing" (also called "paired plan" or "companion plan"). This means your watch shares your phone's cellular number and data plan. When someone calls your phone number, both your phone and watch ring.

When your watch sends a text, it appears to come from your phone number. This is managed by your carrier, not by the watch or its manufacturer. You typically cannot install an independent eSIM profile from a travel eSIM provider on your smartwatch.

The carrier charges a monthly fee for number sharing, usually $5 to $15 per month on top of your regular phone plan.

Not All Carriers Support Smartwatch Number Sharing

Even if your watch supports eSIM, your specific carrier may not offer a number sharing plan for it. In the US, AT&T, Verizon, and T-Mobile all support Galaxy Watch and Pixel Watch number sharing, but smaller carriers and MVNOs (like Mint Mobile, Visible, or Cricket) generally do not. In Europe and Asia, carrier support varies widely.

Before purchasing an LTE smartwatch, check your carrier's website for their specific watch plan offerings. If your carrier does not support number sharing for your watch model, the eSIM capability is essentially unusable. The watch will still work over Bluetooth and Wi-Fi, but it will not have independent cellular connectivity.

Galaxy Watch LTE Requires a Samsung Galaxy Phone

Samsung Galaxy Watch LTE models (Watch 4, 5, 6, 7, 8, FE, and both Ultra models) can only activate eSIM when paired with a Samsung Galaxy phone. If you use a Pixel, OnePlus, or any non-Samsung Android phone, you cannot set up the cellular/eSIM connection on a Galaxy Watch, even if you can pair the watch over Bluetooth. This is a Samsung-imposed restriction enforced through the Galaxy Wearable app.

The LTE activation option simply does not appear when the watch is paired with a non-Samsung device. If you own a non-Samsung Android phone and want an LTE smartwatch, consider the Google Pixel Watch instead, which pairs with any Android phone. The minimum Android version moves with each Pixel Watch generation, so check Google's spec page for your model.

Travel eSIM Providers Do Not Support Smartwatches

If you want to load a travel eSIM from Holafly, Nomad, Saily or Ubigi straight onto a Galaxy Watch, Pixel Watch, Garmin or Huawei watch, that is not possible. Smartwatch eSIM is provisioned by the carrier, not by you. The watch has no QR scanner and no manual activation screen.

There is a second reason it cannot work: travel eSIMs are data-only products with no phone number attached, and a watch line exists to share a number. The one exception anywhere in the category is GigSky, which sells Apple Watch data plans through its own app for Series 4 and later. For every other watch, your choices abroad are: (1) add international roaming to the carrier plan your watch shares, or (2) keep the watch on Bluetooth while your phone runs a travel eSIM for data.

Garmin LTE Is Not a Cellular Smartwatch in the Traditional Sense

The Garmin Forerunner 945 LTE has built-in LTE, but it does not work like a Samsung or Pixel watch. Garmin uses its LTE connection exclusively for safety and tracking features: LiveTrack (sharing your location with contacts in real time), incident detection (automatically alerting emergency contacts if you crash), and spectator messaging (receiving motivational messages during races). You cannot make phone calls, send texts, browse the web, or stream music over Garmin's LTE connection.

It is not a number-sharing service. Garmin's LTE requires a separate Garmin subscription plan that is independent of your phone carrier.

Huawei Watch eSIM Has Very Limited Market Availability

Huawei Watch 3, 3 Pro, 4, and 4 Pro all support eSIM, but only in specific markets. In China, eSIM on Huawei Watch is well supported by China Mobile, China Unicom, and China Telecom. Outside China, support is extremely limited and varies country by country.

In most European and North American markets, Huawei Watch eSIM is either unsupported or restricted to a handful of carriers. Additionally, because Huawei watches run HarmonyOS and require a paired Huawei phone for eSIM activation, using a Huawei Watch with a non-Huawei phone eliminates the eSIM option entirely. If international cellular watch support is important to you, Samsung Galaxy Watch or Google Pixel Watch offer much broader carrier compatibility.

Bluetooth-Only Watch Models Do Not Have eSIM Hardware

Every smartwatch in this list is sold in two versions: Bluetooth/Wi-Fi only and LTE (cellular). Only the LTE version contains the eSIM chip. The Bluetooth-only version has no cellular hardware whatsoever and cannot be upgraded to support eSIM.

Before purchasing, make sure you select the LTE variant. Expect to pay a premium for the LTE build. The gap moves with each generation, so compare the two listings on the same product page.

The LTE model is typically identifiable by "LTE" or "Cellular" in the product name, and it may have a slightly different design (such as a colored ring on the crown for Samsung watches or a different caseback for Pixel Watch).