The Huawei Watch Ultimate is indeed capable of two-way satellite communication, specifically through the BeiDou satellite network. This feature allows users to send and receive messages via satellite when there is no cellular network coverage, making it a valuable tool for emergency situations or remote areas. The watch is the first public smartwatch to support this functionality, and it is activated by holding a specific button for a few seconds[4][7].
To use this feature, users need to ensure they have the latest firmware update, which includes the HarmonyOS version 3.0.0.138 or later. Additionally, they must install the Huawei Health app version 13.1.5.315 or higher from the AppGallery. Once updated, users can download a dedicated Beidou Satellite SMS app on the watch to enable satellite messaging[2].
The satellite communication feature is powered by miniaturized RF modules and innovative nano-forming integration technology, which allows signal transmission in a small volume space. Huawei has also developed a battery intelligent heating solution to maintain high-power output in low-temperature environments, ensuring reliable satellite communication[4].
While this feature is currently available in China, there is no global rollout plan announced yet[7]. The watch's satellite capabilities, combined with its robust design and extensive health and fitness features, make it a versatile and reliable companion for both daily use and outdoor adventures[3][5].
In summary, the Huawei Watch Ultimate supports two-way satellite communication via the BeiDou network, providing users with a critical means of staying connected in areas without cellular coverage. However, this feature is currently limited to the Chinese market.
Citations:
[1] https://www.huaweicentral.com/huawei-certifies-watch-ultimate-2-with-uwb-and-satellite-sms-support/
[2] https://www.huaweicentral.com/huawei-watch-ultimate-satellite-sms-feature-update/
[3] https://root-nation.com/gadgets-en/wearables-en/en-huawei-watch-ultimate-review/
[4] https://www.vopmart.com/blog/post/Huawei-Watch-Ultimate-Review
[5] https://www.t3.com/reviews/huawei-watch-ultimate-review
[6] https://www.reddit.com/r/Huawei/comments/12pipxf/huawei_watch_ultimate_a_little_problem_on_the_gps/
[7] https://www.phonearena.com/reviews/huawei-watch-ultimate-review_id5760
[8] https://consumer.huawei.com/en/wearables/watch-ultimate/specs/