Huawei recently rolled out the HarmonyOS 2.1.0.399 firmware update to the Huawei Watch GT 3 and GT Runner. The update bought some interesting features with itself. For instance, it has added a new car key function that enables users to unlock car doors or even control the whole car remotely. Let’s have a look at all the details.

Huawei Watch GT 3 and GT Runner have recently received the HarmonyOS 2.1.0.399 update that brings car key and door key functions. It also optimizes the accuracy of swimming distance and swimming pose recognition (Via IThome).

The car key function has been added for Huawei’s own AITO M5 car. This feature will allow users to remotely control their cars using their Huawei watch. For example, users will be able to unlock the car doors with just a tap. The BYD NFC car key function has also been added.

The changelog mentions that with the new update, users will also be able to use the Huawei Watch GT 3 and GT Runner as door keys. This means they can simply touch the door lock with their watch and it will be unlocked. However, only Huawei Smart Door Lock and Huawei Smart Door Lock Pro are compatible with this feature.

Do note that the new car keys and smart door lock keys features are only available in China, and they need to be activated from the “Wallet” in the “Sports Health” app.

The update also brings certain optimizations. For instance, users can now set multiple time periods in the “Do not disturb” mode, execute a custom running course or smart running plan by rotating the crown and pressing the lower button combination, and more.

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