Xiaomi 18 Fold Debuts in China with In-House 3nm Silicon and 'Passport' Design
The new foldable shifts toward a shorter, wider form factor and signals Xiaomi's strategic move away from Qualcomm reliance.
Xiaomi has launched the Xiaomi 18 Fold in China, introducing a shorter and wider "passport-style" design that departs from the traditional tall, narrow book-style foldable. The device marks a significant technical milestone for the company by debuting its own in-house 3nm Xring O3 processor.
Launched on September 7, the Xiaomi 18 Fold features a 5.38-inch external screen and a 7.58-inch internal display. The hardware is anchored by the Xring O3 silicon and a high-capacity 6,000mAh battery supporting 67W wired and 50W wireless charging. For photography, Xiaomi integrated a Leica-branded system consisting of a 200MP main camera, a 50MP periscope telephoto lens, and a 50MP ultrawide sensor. The device runs HyperOS 4 based on Android 17 and starts at 10,999 yuan (approximately $1,640) in the Chinese market.
A Shift in Foldable Philosophy
The foldable market is currently experiencing a divergence in design philosophies. While some manufacturers, such as Huawei with the Mate XT 2, are pushing toward complex tri-fold devices, others are converging on the "passport" form factor. This shorter and wider approach is intended to improve handling when the device is closed and provide a more natural 4:3 aspect ratio when unfolded, making the internal screen feel more like a traditional tablet than a stretched smartphone.
Industry Implications
The convergence of Xiaomi and Samsung on this specific form factor suggests the industry is settling on a standardized design for book-style foldables. Beyond the physical shape, the inclusion of the 3nm Xring O3 processor is a strategic pivot. By developing its own silicon, Xiaomi is reducing its total reliance on Qualcomm for high-end foldable hardware, allowing for tighter integration between the processor and the unique power and thermal requirements of a folding chassis.
What to Watch
As the industry standardizes, the market will be watching to see if other major players adopt the passport-style design to maximize usability. While the Xiaomi 18 Fold establishes a new benchmark for in-house silicon in the foldable category, it remains to be seen how this proprietary chip performs in real-world efficiency compared to established competitors. Observers will also be monitoring whether this design shift leads to a broader industry move away from the narrow "remote control" feel of early foldable cover screens.