The Huawei Watch Ultimate, like other Huawei smartwatches, does not support Google Assistant. Huawei's watches operate on their own proprietary software, which does not integrate Google services such as Google Assistant. Instead, Huawei offers its own voice assistant, which is accessible through the Huawei Health app and requires the watch to be paired with a Huawei phone running EMUI 10.1 or later[4][6].
Huawei's voice assistant allows users to perform tasks like checking the weather or finding information, but it is limited compared to Google Assistant in terms of functionality and availability across different devices. The lack of Google Assistant on Huawei watches is due to the company's reliance on its own ecosystem and the absence of Google services on its devices, a result of the U.S. trade restrictions[1][4].
While Huawei has started to allow third-party apps on its wearable devices, these apps are developed using Huawei's integration kits and are available through the AppGallery[1]. However, there is no indication that Google Assistant or similar third-party assistants will be supported on Huawei watches in the near future. Users looking for Google Assistant integration would need to consider other smartwatch options that support Wear OS or are compatible with Google services.
Citations:
[1] https://www.gsmarena.com/huawei_now_accepts_third_party_apps_for_its_wearable_devices-news-47903.php
[2] https://www.youtube.com/watch?v=zmvB-MAyINs
[3] https://www.youtube.com/watch?v=GpnFWnkiCj8
[4] https://consumer.huawei.com/en/support/content/en-us00773900/
[5] https://www.techradar.com/reviews/huawei-watch-ultimate
[6] https://gzhls.at/blob/ldb/c/0/4/e/0996556910a2c1986d1547a5bea4fddc164d.pdf
[7] https://community.home-assistant.io/t/smartwatch-hass-compatible/51801
[8] https://www.reddit.com/r/HuaweiWatchGT/comments/16uhwzm/huawei_watch_4_vs_google_keep/
[9] https://www.youtube.com/watch?v=I6Qlm9M8ZpM