小米3纳米芯片量产面市，高通依然是旗舰机供应商

Core Viewpoint - Xiaomi's self-developed 3nm smartphone SoC, "Xuanjie O1," is set to be officially released on May 22, marking a significant milestone in the company's decade-long chip development journey. This positions Xiaomi as the fourth company globally to design its own 3nm smartphone SoC, following Apple, Qualcomm, and MediaTek [2][4]. Chip Development and Market Position - The Xuanjie O1 is primarily aimed at high-end flagship products, with initial production estimates conservatively set at several hundred thousand units due to high initial costs from small-scale production [2][4]. - Xiaomi's strategy includes using a self-developed application processor (AP) while likely relying on MediaTek for the baseband processor (BP), as developing a proprietary BP involves high patent costs and complex compatibility challenges [6][8]. Competitive Landscape - Xiaomi aims to enhance its position in the high-end smartphone market, where competitors like Apple, Samsung, and Huawei already utilize self-developed SoCs. The self-developed SoC is seen as crucial for differentiation, cost control, and energy optimization [8][9]. - As of March 2024, Xiaomi holds a 24.3% market share in the 4000-5000 yuan price segment in mainland China, indicating progress in its high-end market strategy [8]. Relationship with Third-Party Suppliers - Despite the introduction of its own chip, Xiaomi will continue to collaborate with Qualcomm and MediaTek for various product lines, as the self-developed chip requires multiple generations for market validation and cost optimization [10][11]. - Qualcomm's CEO has stated that Xiaomi's self-developed chip is not expected to impact its business, and both companies have reaffirmed their partnership through a multi-year agreement [11]. Investment and Development History - Xiaomi has invested over 13.5 billion yuan in chip development from 2021 to April 2025, with an expected investment of over 6 billion yuan in 2023 alone. The R&D team has grown to over 2,500 members [12][13].