What are the Best Smart Watches with eSIM Compatibility in 2025

The eSIM technology will have completely changed the smartwatch industry by 2025. With its steady rise, embedded SIM (eSIM) is now the go-to for mainline connectivity, giving smartwatches the freedom to function independently of your phone. This guide will tell you all about eSIM-compatible smartwatches in 2025, including their remarkable features, the models recommended and what to look for when you buy.

What is an eSIM?

Before we learn about the world of eSIM-compatible smartwatches, let's try to get a better idea about what an eSIM is. An eSIM, or we say an embedded SIM, is a digital SIM that allows you to activate a cellular plan from your carrier without having to use a physical SIM card. So this technology can offer users numerous advantages, such as easier setup, the ability to switch carriers without changing SIM cards, and the convenience of managing multiple plans on one device.

What are eSIM Smartwatches?

For smartwatches with eSIM, this is a revolutionary leap. It means:

• True Standalone Connectivity: Your smartwatch can make and receive calls, send messages, stream music, use navigation, and access cloud services without your phone being nearby. Imagine going for a run, leaving your phone at home, and still being reachable or able to summon emergency services.

• Enhanced Freedom and Convenience: No more fumbling with tiny SIM cards or worrying about forgetting your phone. Your wrist becomes your primary communication hub.

• Seamless Network Switching: Easily switch between carriers or activate a local plan when travelling internationally, all from your watch or a companion app, eliminating expensive roaming charges.

• Improved Security: eSIM for the watch is embedded and tamper-resistant, making it more secure than physical SIMs that can be lost or stolen. In emergencies, your watch can become a lifeline.

• Sleeker Designs: Without the need for a physical SIM tray, manufacturers can design more compact and water-resistant smartwatches.

As of 2025, eSIM technology will find its way into many IoT devices, mainly starting with smartwatches. The expectations from GSMA suggest that more than half of smartphone sales will provide eSIM, making it more widespread and soon seen in many types of wearables.

What are the Top Smartwatches with eSIM in 2025

There is an active and intense market for eSIM smartwatches in 2025, and leading companies are always driving advancements. Here are some of the standout models and series you should consider:

1. Apple Watch Series 10 (and potentially Series 11/Upcoming Models): Always at the Forefront for Apple iPhone users, the Apple Watch continues to dominate. The Series 10 and any models that will be released in late 2025 will build on the Apple Watch’s cellular technology by adding:

• Seamless Integration: A standout connection with the iPhone, such as iMessage, FaceTime and Apple Pay.

• Even Better Health Tracking: Keep an eye out for improved ECG, monitoring blood oxygen levels, alerting about irregular heart rhythms and the addition of blood pressure or glucose monitoring.

• Variety of Wristed Apps: A big number of apps specially built for use on your wrist.

• Special Features: Fall detection is improved, plus there is crash detection and an emergency button that connects you to a help centre even on a satellite network when using the Ultra version.

• Improved Battery Life Expected: Cellular models of Apple Watches generally offer 18-36 hours of battery life, but we can hopefully expect some better results going forward.

  
  

2. Apple Watch Ultra 2 (and potentially Ultra 3): The Adventurer's Choice, building on its rugged reputation, the Apple Watch Ultra series continues to be the ultimate smartwatch for outdoor enthusiasts. Its eSIM functionality is crucial for:

• Extended Battery Life: Significantly longer battery life compared to the standard Apple Watch, crucial for multi-day adventures.

• Enhanced GPS and Navigation: Precision dual-frequency GPS for accurate location tracking even in challenging environments.

• Extreme Durability: Titanium casing, sapphire crystal display, and advanced water resistance for diving.

• Action Button: A Customizable button for quick access to specific functions, including starting a workout or dropping a compass waypoint.

  
  

3. Samsung Galaxy Watch Series (such as Galaxy Watch 7 and Galaxy Watch Ultra): The Android Powerhouse Samsung's Galaxy Watch lineup running Wear OS is a top contender for Android users, offering strong eSIM integration.

• Wear OS Ecosystem: Google Assistant, Google Maps, Google Wallet and plenty of apps are part of the Wear OS Ecosystem.

• Comprehensive Health Monitoring: All these features: ECG, blood pressure monitoring (in limited regions), body composition measurement, advanced sleep tracking and alternative benefits.

• Stylish Design: There is a range of beautiful and sporty designs from Samsung, designed for everyone’s tastes.

• Strong Android Compatibility: Samsung smartphone users enjoy easy setup, complete features and all Android devices can be used as well.

• Longer Battery Life: The improvement in the battery means some Samsung devices are rated to last up to 100 hours.

  
  

4. Google Pixel Watch 3: The Pure Android Experience Google's own smartwatch is maturing rapidly, and the Pixel Watch 3 is expected to solidify its position as a premium Wear OS device with excellent eSIM capabilities:

• Deep Fitbit Integration: Holistic health insights and advanced fitness tracking powered by Fitbit.

• Sleek, Minimalist Design: A distinctive round design with a comfortable fit.

• Pure Android Experience: Timely updates and tight integration with Google services.

• Enhanced Performance: Improved processors for smoother operation and potentially better battery life.

  
  

5. The Huawei Watch Series (notably Huawei Watch 4 Pro, Upcoming Models) is considered a highly autonomous smartwatch that appeals to users without a Google phone and provides strong health benefits, plus long battery life.

• Exceptional Battery Life: Some Huawei models boast multi-week battery life even with cellular usage.

• Robust Health Tracking: Advanced ECG, SpO2, and skin temperature monitoring, often with detailed health reports.

• Premium Build Quality: Often featuring aerospace-grade titanium and sapphire glass.

• HarmonyOS: Huawei's proprietary operating system offers a smooth user experience.

  
  

6. OnePlus Watch 2 (and likely future models), User reviews have received high marks for its strong battery life and easy performance on Wear OS. They are expected to continue matching the performance trends, so Android users searching for both great features and endurance would want to consider these.

7. Garmin Smartwatches 

Garmin’s latest smartwatches use LTE to improve safety and connectivity for athletes and those who enjoy outdoor activities:

• With Garmin Forerunner 965 LTE, you can be tracked during events, incident detection and setting up automatic alerts to emergency contacts if anything happens and listen to LTE-based streaming music.

• The Garmin Venu 3 Plus combines stylish design, LTE calling and messaging, making it great for everyday living and working out.

People using Garmin’s LTE service can stay in touch without having to carry a phone, making it particularly useful for runners, cyclists and hikers.

Key Considerations When Choosing Your eSIM Smartwatch in 2025

With so many excellent options, selecting the right eSIM smartwatch requires careful thought. Here are the crucial factors to weigh:

• Smartphone Compatibility (iOS vs. Android): This is often the primary determining factor. Apple Watches are best for iPhones, while Galaxy Watch, Pixel Watch, and other Wear OS devices shine with Android phones. Huawei watches offer broader compatibility.

• Battery Life: eSIM usage, especially for calls and streaming, can significantly impact battery life. Consider your daily usage patterns and prioritize models known for longer endurance if standalone connectivity is a frequent need. Look for watches offering at least 24 hours with typical cellular use, or significantly more for multi-day adventurers.

• Health and Fitness Features: Identify the health metrics most important to you (ECG, sleep tracking, body composition, advanced workout modes, GPS accuracy).

• Design and Comfort: Smartwatches come in various sizes, shapes (round vs. square), and materials. Choose one that fits your wrist comfortably and matches your style.

• Durability and Water Resistance: If you're active or plan to use your watch for swimming/diving, check its IP rating and water resistance depth.

• Carrier Compatibility and Plan Costs: Not all carriers support eSIM on all smartwatches. Verify your carrier's compatibility and inquire about cellular plans for smartwatches, which often come as an add-on to your existing phone plan. Activation fees (typically $5-$10) and monthly cellular fees are common.

• Ecosystem and Apps: Consider the operating system (watchOS, Wear OS, HarmonyOS) and the availability of your favorite apps.

• Price: Smart watches with eSIM typically come at a premium due to the added cellular hardware and technology. Set a budget and compare features accordingly.

• Future-Proofing: Look for models with the latest processors and software versions to ensure longevity and access to future updates.

The Future is Untethered: What to Expect Beyond 2025

The trajectory of smartwatches with eSIM is clear: widespread adoption and increasingly sophisticated capabilities. Beyond 2025, we can anticipate:

• Even Longer Battery Life: Continued advancements in low-power chipsets and battery technology will extend standalone usage.

• More Advanced Health Sensing: Non-invasive blood glucose monitoring, more accurate blood pressure readings, and comprehensive vital sign tracking may become standard.

• Enhanced AI and Machine Learning: Smartwatches will become even more proactive in providing personalized health insights and predictions.

• Seamless Global Connectivity: Further standardization and broader carrier support will make international travel with your eSIM smartwatch effortless.

• Security Evolution: As eSIMs become more prevalent, ongoing efforts will strengthen security protocols against potential threats like unauthorized profile activation or data interception.

• Sustainable Practices: The shift away from physical SIM cards contributes to reduced plastic waste and a more environmentally conscious tech industry.

Setting Up Your eSIM Smartwatch

Activating an eSIM on your smartwatch is generally a straightforward process, typically involving these general steps:

1. Ensuring Compatibility: Confirm your smartwatch model and your mobile carrier support eSIM.

2. Latest Software: Update both your smartphone and smartwatch to their latest operating system versions.

3. Carrier Account: Have your carrier account information ready.

4. Activation Process:

   • Apple Watch: Open the Watch app on your iPhone, go to "Cellular," and follow the on-screen instructions to set up cellular.

   • Android/Wear OS Watches: Typically, you'll use the companion app (e.g., Galaxy Wearable, Google Pixel Watch app) to navigate to the cellular settings and activate your eSIM plan.

   • QR Code or App Provisioning: Carriers usually provide an eSIM QR code to scan or allow activation directly through their mobile app.

5. Confirmation: Once activated, you should receive a notification, and your cellular plan will be listed in the watch's settings.

How to Activate eSIM on Smartwatch

1. Check Device Compatibility: Confirm your smartwatch model supports eSIM and cellular connectivity.

2. Choose a Carrier: Select a carrier offering eSIM plans compatible with your smartwatch. Major carriers worldwide now support eSIM for wearables.

3. Activate eSIM: Usually involves scanning a QR code or entering an activation code provided by your carrier.

4. Manage Plans: Switch between data plans or carriers easily via your smartwatch or companion app.

5. Enjoy Full Connectivity: Make calls via the internet, send messages, stream music, and use GPS independently of your smartphone.

Tascom eSIM: Your Best Travel Companion for eSIM Smartwatches

With Tascom, users can enjoy affordable international data eSIM that perfectly complements your eSIM smartwatch. Whether you’re travelling abroad or need a reliable backup plan, Tascom offers:

• Easy activation with QR codes.

• Flexible data plans covering 150+ countries.

• Competitive rates to save on roaming.

• Seamless switching between plans without physical SIM cards.

Stay connected effortlessly with Tascom eSIM — the perfect partner for your smartwatch’s cellular capabilities.