We tested the Huawei GT6 Pro: the smartwatch with the longest battery life

For the past few weeks, we've put our Huawei GT5 aside and started testing the new Huawei Watch GT6 Pro , unveiled in Paris at an event at the Olympic Velodrome. It became clear that the focus of this new watch is on cyclists. The GT6 is designed, like most devices in its class, for outdoor training, advanced health tracking, and, above all, for those who are tired of charging their smartwatch every night, as it offers up to 21 days of battery life .

The GT6 series comes in three versions: the GT 6 Pro 46mm, the GT 6 46mm, and a more compact GT 6 41mm, designed for smaller wrists. All retain the classic round design, with metallic finishes and an aesthetic that combines the elegance of a traditional watch with a sporty look.

The Pro model is the most complete and elegant, with sapphire crystal and a titanium body, ideal for those looking for a durable watch for adventures that also looks good with a shirt. Huawei has even included woven straps for a "casual touch" and fluoroelastomer straps for those who want to wear it on the mountain or to the gym.

One of the major improvements of this generation is the new Sunflower positioning system, which, together with the redesigned antenna, allows for more accurate route and speed data. In our tests, during bike rides in urban and mountain environments, the accuracy was excellent. Compared to the Garmin Edge 830 bike computer, the routes virtually overlap, making the GT6 Pro the first to achieve GPS coverage.

Plus, we get not only positioning data, but also real-time gradients, elevation maps, and a pace adjusted for incline, which is especially beneficial for trail running.

Its key new cycling feature is virtual power calculation , one of the firsts in the industry that doesn't require external sensors (which, by the way, are very expensive). The watch estimates power in watts using data such as speed, gradient, and weight. It's not perfect, and there's still a five-second delay in reading, but it can be an alternative to external power meters, at least for training sessions. We compared it to a Garmin Rally 100/200 power meter, and because this is a "non-final" version, the differences are noticeable, although Huawei assures that the final version will only be 25W. If we take into account the Strava segments and the average power between the Garmin and the GT6, the deviation is much smaller. In conclusion: it's not a good reference for real-time power, but it is good for calculating averages at the end of the route.

The GT6 features automatic fall detection with an emergency countdown—ideal for long rides—and connectivity with up to four professional cadence or heart rate sensors at the same time. Additionally, both the GT6 and GT5 allow you to share your heart rate with other devices, such as the Edge 830 in our case, eliminating the need to carry an additional band.

Huawei has continued to advance with the TruSense system, which improves the accuracy of heart rate, SpO₂, and temperature readings, even on small wrists or with skin variations. But perhaps most surprising is its emotional tracking: the GT6 can detect up to 12 different emotional states, accompanied by breathing exercises guided by a panda animation. Obviously, it's subjective, but we found it to be quite accurate in reflecting how you feel throughout the day.

Only the GT 6 Pro model includes features like ECG, contour mapping, and advanced metrics for golf and trail running. The GT6 46mm offers the essentials: a 1.47" AMOLED display, a robust design, and all the training and health features, but without maps or ECG. The GT6 41mm, on the other hand, is more elegant and compact, with slightly shorter battery life (up to 14 days), and is designed for more everyday use than sports.

The GT6 is compatible with both Android and iOS, although the experience is somewhat more complete if you use a Huawei phone. It requires the Huawei Health app, from which everything is synced. Without Wear OS, there are some sacrifices: the number of installable apps is very limited and integration with Google is almost nonexistent . WhatsApp and email notifications are basic, while on Wear OS you can open and navigate within apps. The same goes for AI, since the GT6 lacks Gemini.

In terms of battery life, there's no competition here. The GT6 can last up to three weeks without a charger. Only the 41mm model goes down to about seven days, but that still beats most. The wireless fast charging system is convenient and efficient: it reaches 100% in 95 minutes, although the charger on previous versions isn't compatible. In our tests, tracking 1.5 hours of cycling consumed just 5% of the battery—practically nothing. In contrast, other Android-based watches need to be recharged after a couple of workouts.

Huawei has made a strong commitment with the GT6, offering a thoughtful design, new wellness features, and a battery life that lets you forget about the charger for weeks. It's not a smartwatch for experimenting with apps, but if you're into sports, health tracking, and don't want to carry a charger everywhere, it's hard to find anything better. However, there's still room for improvement in features like the power display delay. Even so, the Huawei Watch GT6 is one of the most complete and practical wearables we've tested this year. The price starts at 379 euros .