Currently, there are no widely reported specific issues directly linked to the HarmonyOS 5.0 update for the Huawei Watch Ultimate. However, it's worth noting that previous updates have caused problems for some users. For instance, a past update to HarmonyOS 4.2.0.103 caused issues with the watch freezing and failing to turn back on for some users, particularly those using it for diving activities[6]. Additionally, there have been general complaints about the update process and availability for different models, with some users experiencing delays or inconsistencies in receiving updates[10][11].
The HarmonyOS 5.0 update itself has been noted for bringing various improvements and features, such as a new UI, offline maps, and a golf app, but it does not include NFC payments, which were announced for future updates[1][4]. The latest updates, like version 5.0.0.21 and 5.0.0.22, focus on system stability optimizations without introducing significant new features[1][9].
If you encounter any issues after updating, it might be helpful to check for further updates or contact Huawei support for assistance.
Citations:
[1] https://www.notebookcheck.net/Huawei-rolling-out-new-global-Watch-Ultimate-update.949819.0.html
[2] https://developer.nuki.io/t/nuki-with-huawei-harmony-os/17276
[3] https://www.nextpit.com/huawei-watch-d-review
[4] https://www.huaweicentral.com/huawei-watch-ultimate-is-receiving-harmonyos-5-0-software-update/
[5] https://www.fully-kiosk.com/en/
[6] https://www.reddit.com/r/Huawei/comments/1f4q31w/critical_issue_with_huawei_watch_ultimate_after/
[7] https://www.androidauthority.com/huawei-google-android-ban-988382/
[8] https://xdaforums.com/t/problems-after-update-to-harmonyos-3-0-0-103.4636482/
[9] https://www.huaweicentral.com/huawei-pura-70-and-watch-ultimate-gets-february-2025-update/
[10] https://xdaforums.com/t/watch-3-pro-is-not-receiving-harmonyos-2-1-update.4493369/page-5
[11] https://www.gsmarena.com/huawei_watch_ultimate-reviews-12190.php