HUAWEI Watch 4 Pro Smart Watch for men-iOS & Android-Up to 21 Days Battery Life-eSIM Watch Cellular Calling and Sapphire Glass - Fitness Tracker Health Monitor with ECG and SPo2 - Brown

Does the Watch 4 Pro work with both iPhone and Android phones?

Yes, this smartwatch is compatible with both iOS and Android devices. You can pair it with your iPhone or Android phone through the HUAWEI Health app. The watch maintains full functionality across both platforms, including health monitoring, notifications and fitness tracking features. However, some advanced features may work differently depending on your phone's operating system.

How long does the battery actually last in real-world use?

The 780 mAh lithium polymer battery delivers 4.5 days of typical usage in standard mode. This includes regular notifications, health monitoring and moderate fitness tracking. If you switch to ultra-long battery mode, you can extend usage to 21 days by limiting certain features. Heavy users who frequently use GPS, make calls, or track workouts extensively may see shorter battery life.

Can I make phone calls directly from the watch without my phone nearby?

Yes, the watch includes eSIM support and cellular calling capabilities. This means you can make and receive calls independently without your phone nearby. However, eSIM availability in the UK is currently limited to specific network providers. You'll need to check with your mobile carrier to confirm eSIM support and set up the service separately.

Is the sapphire glass screen really scratch-resistant?

The sapphire glass display offers exceptional scratch resistance, ranking 9 on the Mohs hardness scale. This makes it significantly more durable than standard glass screens found on most smartwatches. The aerospace-grade titanium case combined with sapphire glass provides excellent protection against daily wear, drops and impacts. Only diamond or other sapphire materials can scratch this surface.

What health monitoring features are included and how accurate are they?

The watch includes ECG monitoring, SPo2 blood oxygen measurement, comprehensive sleep tracking and multi-sport monitoring. The ECG feature can detect irregular heart rhythms, while SPo2 monitoring tracks blood oxygen levels throughout the day. Sleep monitoring analyses your sleep stages and quality. These sensors use medical-grade technology, though they're designed for fitness and wellness purposes rather than medical diagnosis.

How water-resistant is this watch for swimming and water sports?

The watch has an IPX6 rating and 30-metre water resistance. This means it can handle splashes, rain and shallow water activities. However, some user reviews indicate issues with seawater exposure during swimming. The IPX6 rating protects against powerful water jets but isn't designed for prolonged submersion or high-pressure water activities like diving.

Does the watch support contactless payments in the UK?

While the watch includes NFC technology, contactless payment functionality is not available in the UK. This is a significant limitation compared to other smartwatches that support Google Pay or Apple Pay. The NFC chip is present in the hardware but payment services haven't been activated for the UK market, which many users find disappointing.

How much storage space is available and what can I store on it?

The watch comes with 32 GB of internal storage. This space is used for the HarmonyOS operating system, apps, music files and health data. You can store several hundred songs directly on the watch for phone-free listening during workouts. The storage also holds your fitness data, sleep records and downloaded watch faces. Most users find 32 GB sufficient for typical smartwatch usage.