Xiaomi joins Apple, Google, and Samsung in designing its own mobile chips

Xiaomi unveiled the Xring O3 on Monday, a 3-nanometer mobile processor built by TSMC. The chip puts Xiaomi alongside Samsung among phone makers that design their own flagship silicon. The Xring O3 debuts in the Xiaomi 18 Fold and Pad 9 Pro Max in September.

The Xring O3 is Xiaomi's second-generation in-house mobile SoC. The first, the Xring O1, was a 3nm chip for the Xiaomi 15S Pro. The new chip pushes further: a 10-core "all-big-core" CPU with two C1-Ultra cores at 4.35GHz, four C1-Premium cores at 3.68GHz, and four C1-Pro cores at 3.15GHz. Xiaomi claims a Geekbench 6.5 single-core score of 3,945 and a multi-core score of 15,221, which would put it in the same performance bracket as Apple's A19 Pro and Qualcomm's Snapdragon 8 Elite. The 16-core Mali-G2 Ultra NX GPU and a 4-core NPU rated at 200 TOPS target on-device AI workloads: the camera, voice, and assistant features that are now the marketing wedge for premium phones. The chip is the first mobile SoC with LPDDR6 memory and packs 24 billion transistors on a 133mm² die. (Business Standard, Digital Trends)

These numbers are vendor-provided, posted on Weibo by Xiaomi founder Lei Jun. Independent testing has not yet confirmed them, and the Xring O3 has not shipped in a consumer device. That is the standard gap for any first-weekend mobile-SoC announcement.

The trigger is on-device AI. Running language models, image processing, and live translation directly on a phone, without round-tripping to a data center, requires a neural processor tuned for the job. That gives any phone maker with enough volume a reason to design its own silicon: the chip can be optimized for the specific AI features the OEM wants to ship, and the OEM keeps the design margin. Apple made this bet with the A-series and the Neural Engine. Google followed with Tensor. Samsung uses Exynos in some regions. Xiaomi is the latest phone maker to design its own mobile silicon.

Xiaomi is also hedging its suppliers. The company is one of Qualcomm's largest Android customers and a major MediaTek buyer. Bloomberg Intelligence analysts Steven Tseng and Rebecca Wang note that the Xring O3 stays at 3nm while rivals move to 2nm, indicating Xiaomi is focusing on architecture and features rather than process leadership. More importantly, they wrote, "limited chip volume means Xiaomi will remain heavily reliant on Qualcomm and MediaTek." (Business Standard)

The chip arrives as Xiaomi's hardware business is under pressure. Counterpoint Research data shows Xiaomi had the heaviest shipment decline among major handset makers in the June quarter, and the company's electric vehicle unit is also under pressure. An in-house processor does two things for that situation. It gives Xiaomi a marketing differentiator: an "our own chip, optimized for our AI" pitch that Qualcomm's reference designs cannot match. It also gives the company bargaining leverage with Qualcomm on price and feature priority for the Snapdragon chips that will still go in most of its phones.

Unlike Huawei, which developed its Kirin chips under US sanctions that cut it off from Qualcomm, Xiaomi is not under US sanctions. It can use TSMC's leading-edge 3nm process and ship into every market it sells in. The Xring O3 is a commercial decision, not a forced substitution.

What to watch: independent benchmark results when the Xiaomi 18 Fold ships next month, Qualcomm's response on price and custom NPU work for its largest customers, and whether MediaTek counters with its own design-service offering for OEMs that want mid-tier in-house silicon without building a full chip team. The third-party mobile-SoC market is splitting into a commodity tier and a feature-stacking tier, and the line between them will define the next two years of Android hardware.