Xiaomi's 18 Fold Brings Its First Self-Designed 3nm Chip to a New 10,000-Yuan Price Tier

Xiaomi entered a new price bracket on September 7 when it unveiled the 18 Fold, its first book-style foldable in the new generation and its most expensive phone ever, and the device carried a piece of silicon that matters more than the hardware around it. The 18 Fold is the first Xiaomi phone powered by Xring O3, a self-designed 3nm chip that the company positions as its answer to the premium processors from Qualcomm and MediaTek. By pairing an in-house flagship chip with a foldable body and a starting price above 10,000 yuan for the first time, Xiaomi is signaling that it intends to compete at the very top of the Chinese smartphone market on its own silicon, not just on price.

Key Facts

Xiaomi launched the 18 Fold at its autumn flagship event on September 7, with sales scheduled to begin on September 10 at 10:00 AM, according to the technology site Gizmochina. The pricing ladder starts at 10,999 yuan, about 1,640 US dollars, for the 12GB and 256GB configuration and rises to 14,999 yuan, about 2,235 dollars, for the 16GB and 1TB version, with a ceramic special edition at 15,999 yuan limited to 1,500 units. Gadgets360 reported on September 7 that Xiaomi chief executive Lei Jun described the phone as the company's most expensive ever and its first to cross the 10,000-yuan threshold, attributing the pricing partly to rising memory costs.

The defining component is the Xring O3 processor. Notebookcheck reported on September 7 that the chip is built on a 3nm process, delivers a 60 percent improvement in multi-core CPU performance over its predecessor, and raises GPU performance by 85 percent while cutting power consumption by 64 percent, with an NPU rated at 200 TOPS. Chinese technology coverage, including the Eastmoney finance portal, reported on the same day that Xiaomi claims the Xring O3 is the first AI flagship smartphone chip to exceed 5 million points on the AnTuTu benchmark, scoring 5.61 million.

The 18 Fold also marks a supply-chain milestone. Multiple Chinese reports on September 7 noted that the phone is the first commercial flagship to use domestically produced LPDDR6 memory from the Chinese memory maker ChangXin Memory Technology, known as CXMT, a step that reduces reliance on Korean and American memory suppliers for Xiaomi's highest-end products.

On the device side, the 18 Fold uses a mid-fold, book-style design with a 5.38-inch cover display and a 7.58-inch foldable inner display, both running at 120Hz LTPO with peak brightness up to 4,000 nits. Gadgets360 reported on September 7 that the phone packs a 6,000mAh battery, the largest Xiaomi has put in a foldable, with 67W wired and 50W wireless charging, and a Leica-tuned triple camera system built around a 200-megapixel main sensor with optical stabilization, a 50-megapixel periscope telephoto and a 50-megapixel ultrawide. The phone measures 5.02mm when unfolded and 10.68mm folded, weighs 219 grams, and runs Android 17-based HyperOS 4, according to the same report.

Analysis

What this really means is that Xiaomi has decided the only sustainable route to the premium tier is owning the processor, and the 18 Fold is the vehicle it chose to debut that ambition. For years Xiaomi has competed at the high end using Qualcomm's latest chips, which left it at the mercy of a single supplier's roadmap, pricing and allocation decisions. The Xring O3 changes that calculation: it lets Xiaomi differentiate on its own silicon, control the bill of materials for its flagship, and tell a national-technology story in China, where self-developed chips carry real marketing weight with both consumers and the state.

The bigger picture here is that the Chinese premium handset market is quietly becoming a contest of in-house silicon. Huawei builds its own Kirin chips, and the newly surfaced Mate devices run on them; now Xiaomi is fielding the Xring line, and the 18 Fold is a statement that Xiaomi intends to be a silicon company as well as a handset maker. The use of CXMT's LPDDR6 memory reinforces the pattern: China's leading phone vendors are systematically de-risking their supply chains against export controls, and every flagship that ships with a domestic chip and domestic memory makes the ecosystem harder for foreign sanctions to disrupt.

The pricing is the riskiest part of the bet. Crossing 10,000 yuan puts the 18 Fold in the same psychological bracket as Huawei's premium foldables and Apple's top-end iPhones, and Xiaomi's brand has historically been built on offering flagship specifications at a discount. Lei Jun's public remarks about expensive memory suggest Xiaomi is absorbing real cost pressure, and the ceramic edition limited to 1,500 units looks like a deliberate halo product designed to test how far Xiaomi can stretch its brand before the volume models carry the sales burden.

The design choice also deserves scrutiny. Xiaomi opted for a mid-fold, book-style format rather than the larger tablet-style foldables that dominated earlier generations, and rather than Huawei's tri-fold approach, which suggests the company is targeting the segment of buyers who want a foldable that still fits comfortably in a pocket. That is a bet on the mainstreaming of foldables as a daily driver rather than a novelty, and it aligns with the decision to keep the device relatively light at 219 grams. The success of that positioning will depend on whether enough users accept the crease and the durability trade-offs of foldable screens in exchange for a larger display in a compact body, a calculation that has defined the entire category's slow climb toward the mainstream.

Why It Matters

For Xiaomi, the 18 Fold is a test of whether it can command premium prices with its own chip, and the outcome will shape how aggressively it invests in future Xring generations. For CXMT and the broader Chinese semiconductor supply chain, the phone is an important proof point: landing domestic LPDDR6 in a flagship gives the Chinese memory industry a reference design and a revenue stream that can fund the next node. For Qualcomm, the launch is another crack in its grip on Chinese Android flagships, as the two largest domestic vendors now field their own application processors at the top of their lineups.

For consumers, the practical question is whether the Xring O3 delivers the experience that the benchmark numbers promise, particularly in camera processing, gaming and AI features, where the quality of the software stack matters as much as the raw silicon. If the 18 Fold performs as well as Xiaomi claims, the price gap between domestic-chip flagships and Qualcomm-powered rivals will narrow; if it does not, Xiaomi's premium ambitions will stall and the Xring program will face harder internal scrutiny.

Next Up

The first real-world tests will arrive within days of the September 10 sale date, when independent reviewers publish battery, camera and sustained-performance results. Watch how quickly Xiaomi sells through the initial stock and whether the ceramic special edition sells out, which would signal genuine appetite at the very top of its price range. The longer-term question is what the Xring roadmap looks like beyond this first flagship: whether the chip moves into lower-priced models, whether Xiaomi expands its use of CXMT memory across the lineup, and whether the company can sustain the premium positioning through the next hardware cycle against a Huawei that is simultaneously pushing its own silicon and software stack.