小米集团董事长雷军微博发文称，小米玄戒O1采用第二代3nm工艺制程。

Core Viewpoint - Xiaomi Group's Chairman Lei Jun announced via Weibo that the Xiaomi Ring O1 utilizes the second-generation 3nm process technology [1] Group 1 - The introduction of the second-generation 3nm process technology signifies a technological advancement for Xiaomi in the semiconductor space [1]