Xiaomi 15S Pro Launches With XRing O1 Chip

Xiaomi says its in-house chip outperforms both the Snapdragon 8 Elite and Apple's A18 Pro in benchmark tests.

Xiaomi just announced its first smartphone powered by its own custom chipset, the XRing O1. The device, called the Xiaomi 15S Pro, is pretty much the same as the 15 Pro but swaps out the Snapdragon 8 Elite for Xiaomi’s in-house silicon.

The XRing O1 was developed and designed by Xiaomi and manufactured on TSMC’s second-gen N3E 3nm process. It packs a ten-core CPU setup, including two high-performance Cortex-X925 cores running at 3.9GHz, six Cortex-A725 performance cores clocked between 1.9GHz and 3.4GHz, and two efficiency-focused Cortex-A520 cores at 1.8GHz, according to GSMArena.

(credit: Weibo)

The chip also includes a 16-core ARM Immortalis-G925 GPU and a six-core NPU capable of 44 TOPS for AI tasks.

As for the rest of the specs, the 15S Pro mirrors the 15 Pro. It has a 6.73-inch LTPO AMOLED display with QHD+ resolution and a 120Hz refresh rate, a triple 50MP camera setup (ultrawide, main, and a 5x periscope), and a 6,100mAh silicon carbon battery with 90W wired charging. It runs Xiaomi HyperOS 2, based on Android 15, and comes in Black and Blue colour options.

In terms of performance, Xiaomi claims the XRing O1 scored over 3 million points on AnTuTu, beating the Snapdragon 8 Elite. It also hit over 3,000 in single-core and 9,000 in multi-core tests on Geekbench 6, with the multi-core score even surpassing Apple’s A18 Pro. The chip supports the latest LPDDR5T RAM, UFS 4.1 storage, USB 3.2 Gen 2, Wi-Fi 7, and a custom three-core Xiaomi ISP for imaging.

Pricing starts at CNY5,499 (~RM3,260) for the 16GB/512GB model. The phone is already available for purchase in China, though Xiaomi hasn’t shared any details about a global release yet.