In one of the video teasers posted on Weibo, it appears that the Mi Watch will be running on a smartwatch-based variant of Xiaomi’s MIUI. That said, it is still unclear if this version of MIUI will be based on Wear OS, given that the watch will also be powered by Qualcomm’s Snapdragon Wear 3100 SoC.
Further, one of Xiaomi’s product manager hinted that the Mi Watch possibly being small form factor smartphone as well. Once again, the feature does seem to mimic Apple and its Watch Series 5, and there’s even video footage of the feature in action. Beyond that, there’s not much else known about the Mi Watch. On top of its official launch on 5 November, there’s also the tentative Mi CC9 that the brand is expected to announce alongside the smartwatch. Guess we’ll just have to wait until then to find out more. (Source: Weibo[1][2] via 9to5Google, XDA)