Xiaomi Set to Be First Customer for SK Hynix's LPDDR6 Mass Production
Xiaomi is poised to become the first smartphone manufacturer to receive SK Hynix's next-generation LPDDR6 mobile memory chips, as the South Korean chipmaker prepares to begin mass production in the second half of 2026, according to a report by Korean outlet Herald Business.
SK Hynix completed development certification of its LPDDR6 product in March 2026, becoming the first company globally to do so. The memory is manufactured using a sixth-generation 10-nanometer-class process, known as 1c, and delivers a roughly 33% improvement in data processing speed compared with the previous LPDDR5X standard. Base operating speeds exceed 10.7 gigabits per second, with peak single-pin transfer rates reaching 14.4 Gbps. Through the introduction of sub-channel architecture and dynamic voltage and frequency scaling technology, overall power consumption is reduced by more than 20%. Single-chip bandwidth reaches 38.4 GB/s — approximately 2.25 times that of LPDDR5X.
Industry analysts expect the first LPDDR6-equipped device to be a premium variant within Xiaomi's upcoming 18 series — most likely the Xiaomi 18 Pro Max. The handset is anticipated to pair the new memory with Qualcomm's Snapdragon 8 Elite Gen 6 Pro mobile platform, with LPDDR6's high bandwidth seen as critical to fully unlocking that processor's computational ceiling. The performance gains are expected to translate into smoother on-device AI model execution, real-time video processing, and high-frame-rate cloud gaming, while also improving battery endurance and thermal management.
SK Hynix declined to confirm specifics, stating it "cannot confirm information related to specific customers." However, the two companies share a long-standing supply relationship dating to 2013, when SK Hynix began supplying LPDDR3 memory to select Xiaomi handsets, and has continued to provide successive generations of mobile DRAM through the current LPDDR5X.
Despite the technical leap, LPDDR6 adoption is expected to remain limited in the near term due to high production costs. Only a handful of top-tier flagship and high-performance gaming devices are likely to adopt the standard initially, with the majority of mainstream models continuing to rely on LPDDR5X.
The development intensifies competition in the mobile DRAM market, which is currently dominated by Samsung Electronics Co. and SK Hynix. Samsung announced its own LPDDR6 product based on fifth-generation 10nm-class, or 1b, technology in January 2026, winning a CES Innovation Award. Meanwhile, Chinese memory maker Changxin Memory Technologies (CXMT) has entered the sample-submission stage for its own LPDDR6 and is targeting mass production in the second half of 2026.
The Xiaomi order could also carry broader strategic significance for SK Hynix. Analysts note that securing a high-profile Chinese flagship design win could strengthen the chipmaker's position as it seeks to expand relationships with other major Chinese smartphone brands.
Beyond smartphones, the mass production of LPDDR6 is seen as opening a new front in the competition for SOCAMM modules — a form factor that packages LPDDR memory for use in AI server applications. As AI infrastructure shifts from training toward inference workloads, demand for such modules is accelerating, potentially positioning LPDDR6 as a meaningful growth driver for memory suppliers beyond the mobile segment.
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