Core Viewpoint - Xiaomi's response to rumors about the玄戒O1 being a custom chip from Arm clarifies that it is not true, emphasizing that the chip was independently developed by Xiaomi's team without using Arm's complete solutions [2][3]. Group 1: Development and Design - The玄戒O1 is a 3nm flagship SoC that took over four years to develop, with the CPU and GPU based on Arm's latest IP standards, but the overall design was completed independently by Xiaomi's team [3]. - The CPU of玄戒O1 features a super-large core with a maximum frequency of 3.9GHz, significantly exceeding industry standards, achieved through numerous innovations and hundreds of layout iterations [3]. - Xiaomi's team redesigned over 480 standard cell libraries for the CPU, which is nearly one-third of the 3nm standard cell library, and implemented edge power supply technology and self-developed high-speed registers to meet the challenging design goal [3]. Group 2: Performance and Future Plans - Testing by various media outlets indicates that the CPU and GPU of玄戒O1 have reached first-tier performance and power efficiency [3]. - Xiaomi acknowledges that this is their first flagship SoC and commits to continuous improvement in chip development over the next five, ten, or even twenty years [3]. - The company also highlights its ongoing efforts in baseband development, stating that the玄戒T1 chip includes a fully integrated independently developed 4G baseband [3].

Group 1 - The Xiaomi Xuanjie O1 is not a custom chip from Arm, but rather a 3nm flagship SoC developed independently by Xiaomi's Xuanjie team over four years, utilizing Arm's latest CPU and GPU standard IP licensing without adopting Arm's complete solution [1] - The CPU of the Xuanjie O1 features a super-large core with a maximum frequency of 3.9GHz, significantly exceeding industry standards, achieved through numerous innovations and hundreds of layout iterations [1] - The Xuanjie O1 has redesigned over 480 standard cell libraries, nearly one-third of the 3nm standard cell library, and employs innovative edge power supply technology and self-developed high-speed registers [1] Group 2 - The Xiaomi 15S Pro, equipped with an external baseband, provides a user experience comparable to other flagship smartphones and supports 5G [3] - In internal tests, the Xiaomi 15S Pro achieved a DOU (Daily Usage) of 1.47 days, closely approaching the 1.50 days of the 15 Pro, with minimal differences in daily usage [3] - Xiaomi has integrated a fully independent 4G baseband in the recently released Xuanjie T1 chip, which is already used in the Xiaomi Watch S4 [3] Group 3 - The Xiaomi 15S Pro supports always-on display (AOD) features, including customizable clock and signature settings, while managing power consumption by defaulting to a 10-second display [4] - The device includes a "motion sickness relief" mode that uses visual compensation to alleviate symptoms during vehicle movement, activated through built-in high-precision sensors [5] Group 4 - The camera app of the Xiaomi 15S Pro has undergone a simplification process, automatically triggering night mode in low-light conditions without requiring manual activation [7] - In professional mode, red stripes appear in bright areas of the preview to indicate potential overexposure, a common feature in professional photography equipment [8]