The Huawei Watch Ultimate does not have a built-in torch or flashlight feature that can be used underwater. The watch is designed with advanced diving capabilities, including a 100-meter water resistance rating under the ISO 22810:2010 standard and EN 13319 diving standard, making it suitable for various diving activities such as recreational, technical, and freediving[1][2][3]. However, there is no mention of a torch or light source that can be used underwater in the available specifications or reviews.
The watch does feature an underwater constant light mode, which helps maintain visibility of the screen underwater by adjusting the display settings according to the environment. This feature enhances the readability of the watch's display in murky water conditions, but it is not a traditional torch or light source[10].
For underwater lighting needs, divers typically use separate dive lights designed specifically for underwater use. The Huawei Watch Ultimate's primary focus is on providing diving data, safety features, and navigation assistance during dives, rather than serving as a light source[4][9].
Citations:
[1] https://scubawarehouse.com.my/product/huawei-watch-ultimate/
[2] https://www.androidauthority.com/huawei-watch-ultimate-review-3335995/
[3] https://consumer.huawei.com/en/support/content/en-us15945731/
[4] https://www.galaxus.at/en/page/the-huawei-watch-ultimate-is-designed-to-meet-even-the-most-extreme-requirements-27071
[5] https://www.gadgets360.com/wearables/news/huawei-watch-ultimate-price-cny-5999-6999-launch-sale-specifications-features-3897573
[6] https://manuals.coolblue.nl/4f/huawei-watch-ultimate-zwart.pdf
[7] https://consumer.huawei.com/uk/wearables/watch-ultimate/
[8] https://www.phonearena.com/reviews/huawei-watch-ultimate-review_id5760
[9] https://scubaboard.com/community/threads/new-dive-watch-computer.631558/
[10] https://www.vopmart.com/blog/post/Huawei-Watch-Ultimate-Review
[11] https://www.youtube.com/watch?v=JnZpJ4fHlEk