Key Takeaways
Huawei offers multiple smartwatch models with eSIM support that allow you to stay connected without your phone. The best Huawei eSIM watches in 2025 are:
- Huawei Watch 5 - Premium everyday smartwatch with eSIM, exceptional battery life, and advanced health tracking.
- Huawei Watch Ultimate 2 - High-end eSIM smartwatch with professional diving capabilities, ultra-bright display, and premium materials.
Both watches support eSIM technology, allowing you to make calls, receive messages, and use data without your smartphone nearby.
Huawei eSIM Watch Guide
Introduction to Huawei eSIM Watches
Huawei eSIM watches represent a significant advancement in smartwatch technology, offering the freedom to stay connected without carrying your smartphone. These watches use embedded SIM technology (eSIM) that allows you to make calls, send messages, and use mobile data directly from your wrist. This comprehensive guide explores Huawei's lineup of eSIM-enabled smartwatches, with special focus on their latest models - the Huawei Watch 5 and Watch Ultimate 2.
Huawei Watch 5 - Premium eSIM Smartwatch
The Huawei Watch 5, released in May 2025, represents the company's most refined everyday smartwatch with eSIM functionality. This model strikes an excellent balance between premium design, advanced health features, and exceptional battery life, all while offering seamless cellular connectivity.
Design and Display
The Watch 5 features a sophisticated design with premium materials including sapphire glass, ceramic back, and frame options of either aerospace-grade titanium or 316L stainless steel. Available in 42mm and 46mm sizes, it accommodates different wrist sizes while maintaining a relatively lightweight profile (48-63g depending on the model).
The watch's standout feature is its 1.5-inch LTPO AMOLED display with an impressive 3000 nits peak brightness, making it exceptionally readable even in direct sunlight. The LTPO technology allows the refresh rate to vary from 1Hz to 120Hz, significantly extending battery life without compromising performance.
Huawei Watch 5 eSIM Pros and Cons
eSIM Connectivity
The Huawei Watch 5's eSIM capability is one of its core features, enabling you to stay connected without your phone. The watch supports 4G LTE and offers seamless calling with clear audio quality thanks to its built-in speakers and microphones.
Health and Fitness Features
The Watch 5 excels in health monitoring with its comprehensive sensor array, including the innovative X-Tap sensor that allows for quick health readings. It can measure heart rate, SpO2, ECG, HRV (Heart Rate Variability), and arterial stiffness. The watch also provides accurate sleep tracking and recovery metrics that compare favorably with specialized health wearables.
Battery Life and Charging
Battery performance is impressive, with the 46mm model lasting up to 4.5 days with the always-on display activated and up to 12 days in battery saver mode. The 42mm model offers slightly less at 3 days with AOD and 7 days in battery saver mode. The watch supports 10W wireless charging for convenient power-ups.
Technical Specifications
| Feature | Specification |
|---|---|
| Dimensions | 46 x 46.7 x 11.3 mm (46mm model) |
| Weight | 48-63g (depending on model) |
| Display | 1.5" LTPO AMOLED, 466 x 466 pixels, 3000 nits peak brightness |
| Connectivity | eSIM, Wi-Fi 802.11 a/b/g/n/ac/6, Bluetooth 5.2, NFC |
| GPS | Dual-band GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS |
| Water Resistance | 5 ATM, IP68/IP69, EN13319 certified (40m diving) |
| Battery | 867 mAh Li-Ion, 10W wireless charging |
| OS | HarmonyOS 4.0 |
| Price | Starting at $500 |
Huawei Watch Ultimate 2 - Professional eSIM Watch
The Huawei Watch Ultimate 2, announced in September 2025, represents the pinnacle of Huawei's smartwatch technology. This premium eSIM watch is designed for adventure enthusiasts and diving professionals, offering unparalleled durability, exceptional display quality, and specialized features that set it apart from other smartwatches on the market.
Premium Design and Materials
The Watch Ultimate 2 features an extraordinary build quality with zirconium-based liquid metal case, ceramic bezel, and sapphire crystal front. Available in blue (47.8mm) and black (48.5mm) variants, this watch makes a bold statement with its size and premium materials. At 80.5g, it's significantly heavier than most smartwatches, reflecting its professional-grade construction.
Display and Interface
The 1.5-inch LTPO2 AMOLED display boasts an industry-leading 3500 nits peak brightness, making it exceptionally readable in any environment, including direct sunlight and underwater. The adaptive refresh rate technology helps conserve battery while maintaining smooth performance. The interface is controlled via a rotating crown and buttons, providing precise navigation even with gloves or wet hands.
Professional Diving Capabilities
What truly distinguishes the Watch Ultimate 2 is its professional diving features:
- 150m water resistance (20 ATM) with EN13319 and ISO 22810:2010 certification
- Precise depth tracking and ascent speed alerts
- Innovative sonar-based underwater communication system (Nearlink) allowing divers to send text messages to each other up to 30m away
- Underwater SOS functionality
- Comprehensive dive logging and analytics
These features make the Watch Ultimate 2 a viable alternative to dedicated dive computers for many recreational and professional divers.
eSIM and Connectivity
The Watch Ultimate 2 features full eSIM support for independent cellular connectivity. This allows you to make calls, send messages, and access data without your phone – particularly valuable for adventurers who need reliable communication in remote areas. The watch includes AI noise cancellation for clear calls even in challenging environments.
Huawei Watch Ultimate 2 eSIM Pros and Cons
Health and Fitness Tracking
The Watch Ultimate 2 incorporates all of Huawei's advanced health tracking features, including the X-Tap sensor for quick health readings. It offers comprehensive fitness tracking with dual-band GPS for accurate route tracking, specialised sports modes including professional golf, and detailed recovery metrics.
Battery Performance
Despite its powerful features, the Watch Ultimate 2 delivers impressive battery life:
- 4.5 days with normal use on Android (3.5 days on iOS)
- Up to 11 days in light mode
- 18 hours in diving mode (12 hours with sonar messaging active)
Technical Specifications
| Feature | Specification |
|---|---|
| Dimensions | 48.5 x 48.5 x 12.9 mm (Black) / 47.8 x 47.8 x 12.9 mm (Blue) |
| Weight | 80.5g (without strap) |
| Display | 1.5" LTPO2 AMOLED, 466 x 466 pixels, 3500 nits peak brightness |
| Connectivity | eSIM, Wi-Fi 802.11 a/b/g/n/ac/6, Bluetooth 5.2, NFC |
| GPS | Dual-band GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS |
| Water Resistance | 20 ATM (150m), IP68, EN13319 and ISO 22810:2010 certified |
| Special Features | Sonar-based underwater communication, X-Tap sensor, fall detection |
| Battery | 867 mAh Li-Ion, 10W wireless charging |
| OS | HarmonyOS 5.1 |
| Price | $800 |
Find the best eSIM for your needs
Older Huawei Watches with eSIM Support
While the Huawei Watch 5 and Watch Ultimate 2 represent the latest and most advanced options, Huawei has a history of producing quality eSIM watches. Here's an overview of their previous models that still offer excellent eSIM functionality:
Huawei Watch 4 and Watch 4 Pro (2023)
Released in June 2023, the Watch 4 series represented a significant upgrade in Huawei's smartwatch lineup, introducing more powerful processors and expanded health monitoring capabilities.
Key features of the Watch 4 series include:
- eSIM support for independent cellular connectivity
- Powered by Qualcomm Snapdragon W5 Gen 1 (Watch 4)
- 1.5-inch AMOLED display (standard) or LTPO AMOLED (Pro)
- Comprehensive health monitoring including temperature sensing
- 5 ATM water resistance (50m)
- HarmonyOS 3.0
The Watch 4 Pro featured premium materials including a TC4 titanium frame and sapphire crystal glass, while the standard Watch 4 used stainless steel and regular glass. Both models provided excellent eSIM functionality, allowing users to make calls and use data independently of their smartphones.
Huawei Watch 3 and Watch 3 Pro (2021)
Released in June 2021, the Watch 3 series marked Huawei's transition to HarmonyOS for their smartwatches, bringing improved performance and battery life.
Notable features of the Watch 3 series include:
- eSIM support for cellular connectivity
- 1.43-inch AMOLED display
- HarmonyOS 2.0 (upgradable to 3.0)
- 5 ATM water resistance
- Comprehensive health tracking including SpO2 and temperature
- Built-in GPS with the Pro model offering dual-frequency GPS
The Watch 3 Pro featured a titanium frame for increased durability, while the standard Watch 3 used stainless steel. Both models were priced more competitively than their successors, making them good options for users wanting eSIM functionality at a lower price point.
These older models remain viable options for users seeking Huawei eSIM watches at more affordable prices, especially as they can often be found at significant discounts compared to their original retail prices. While they lack some of the latest features found in the Watch 5 and Watch Ultimate 2, they still provide the core eSIM functionality that allows independence from your smartphone.
How to Use eSIM on Huawei Watches
Setting up and using eSIM on your Huawei watch is straightforward, though the exact process may vary slightly depending on your carrier and region. Here's a general guide to get you started:
Setting Up eSIM on Your Huawei Watch
- Check Carrier Compatibility: First, confirm that your mobile carrier supports eSIM for wearable devices. Major carriers in most countries offer this service, but it's best to verify before proceeding.
- Install Huawei Health App: Download and install the latest version of the Huawei Health app on your smartphone.
- Pair Your Watch: Connect your Huawei watch to your smartphone via Bluetooth using the Huawei Health app.
- Navigate to eSIM Settings: In the Huawei Health app, go to your watch's settings and look for the "Mobile Network" or "eSIM" option.
- Add eSIM Plan: Select "Add Plan" or similar option to begin the eSIM setup process.
- Choose Activation Method: You'll typically have options to scan a QR code from your carrier, enter an activation code, or set up directly through your carrier's app. If you have an activation code but need a QR code, you can convert activation code to QR.
- Complete Carrier Verification: Follow the prompts to complete any verification steps required by your carrier.
- Activate the eSIM: Once verified, your eSIM will be activated on your watch, usually within a few minutes.
Using eSIM Features on Your Huawei Watch
Once your eSIM is activated, you can use these features:
- Make and Receive Calls: Use the phone app on your watch to dial numbers directly or access your contacts.
- Send Messages: Compose and receive text messages using the messages app.
- Use Data: Access internet-dependent features like weather updates, map navigation, and streaming services without your phone.
- Manage Connectivity: Switch between Bluetooth (connected to phone) and cellular (independent) modes as needed to conserve battery.
Frequently Asked Questions about Huawei eSIM Watches
Which Huawei watches support eSIM technology?
How do I activate an eSIM on my Huawei watch?
Can I use my Huawei eSIM watch without my phone nearby?
What's the difference between the Huawei Watch 5 and Watch Ultimate 2?
Can I use my Huawei eSIM watch when traveling internationally?
How long does the battery last when using eSIM on Huawei watches?
What is eSIM?
eSIM allows you to use a digital SIM card instead of a traditional plastic one. This enables you to purchase a SIM card online for the country you're traveling to.
The most well-known eSIM providers on the market are Airalo, Holafly, eSIM4Travel, Yesim, Saily and others.
Frequently asked questions about eSIM:
- Does my phone have eSIM?
- How to add eSIM to iPhone or Samsung?
- How to install eSIM on an older phone?
- What are the most affordable and best phones with eSIM support?
How to compare eSIM?
Here you can compare eSIM data packages for more than 170 countries, such as UK, USA, Egypt and others. And that for any duration and amount of data.
Along with additional information, such as provider ratings and whether the website is available in Czech.
Compare all eSIMs
Why can you trust Vefru?
Founders František and Jan experienced problems with mobile data every time they traveled outside the EU. As technology enthusiasts, the idea of traveling abroad without a data connection or risking truly insane roaming fees was unacceptable to them. Regardless of how adventurous the story of walking across Toronto on a winter night without an online map might be, it's not something they would want to repeat.
After the emergence of eSIM and later eSIM travel data package providers, they learned a lot about the technology and industry and decided to share their findings and the comparison tool they created for themselves with others. It now contains more than 10,000 updated eSIM mobile data packages from the most popular providers for more than 170 countries around the world.
Every time you read a guide on Vefru, it is created in the same way the author would research the topic themselves. From contacting locals about the best network operators, to recommending the most advantageous plans for what you really need, to technical guides on how to create a QR code for eSIM or how to troubleshoot eSIM issues. Most articles are created based on topics that the authors themselves have dealt with and for which they found the best solutions.
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