Xiaomi’s newly launched 15S Pro has drawn attention as the first smartphone powered by the brand’s in-house XRING O1 chip. However, the teardown of the device reveals that the XRING O1 is just one part of Xiaomi’s broader hardware ecosystem, which blends proprietary components with parts from established global suppliers.
Let’s take a closer look at what’s inside the Xiaomi 15S Pro, as uncovered by Counterpoint Research.
Xiaomi’s In-House Silicon Push
At the heart of the 15S Pro lies the XRING O1 SoC, a key milestone in Xiaomi’s journey toward greater semiconductor independence. But it doesn’t stop there. The device also incorporates:
- XP2210C, Xiaomi’s own power management chip
- Surge P3, an in-house wired charging IC
These components highlight Xiaomi’s ambition to reduce reliance on third-party chipmakers—though, as the teardown shows, the company still collaborates with a number of major hardware partners.
Memory and Storage: Top-Tier Sourcing
For memory, Xiaomi partners with SK Hynix, equipping the 15S Pro with the latest LPDDR5T RAM, using Package-on-Package (PoP) integration to maximize internal space.
In terms of storage, Micron supplies the UFS 4.1 modules, ensuring fast read/write speeds and efficient multitasking.
Connectivity: MediaTek Takes the Lead
Despite using its own processor, Xiaomi still depends heavily on MediaTek for networking and connectivity:
- T800 (MT6980W) modem for 5G
- MT6639BEW chip for Wi-Fi and Bluetooth
- MT6195W RF transceiver for signal transmission
This setup reinforces MediaTek’s growing footprint in mobile connectivity solutions, even in premium-tier devices.
Audio, NFC, and Sensors: A Global Supplier Mix
A wide range of international tech players contribute to various other components of the Xiaomi 15S Pro:
- NXP Semiconductors (Netherlands/USA): Supplies NFC and UWB chips
- Cirrus Logic (USA): Handles audio components
- Southchip Semiconductor (China): Responsible for secondary charging ICs
- NuVolta (China): Manages wireless charging modules
- Vanchip (China): Supplies RF power amplifiers
- STMicroelectronics (Switzerland/Italy): Provides key sensors
Xiaomi’s Strategic Balance: Innovation Meets Practicality
Though Xiaomi is clearly investing in developing its own chips, the 15S Pro teardown proves that hardware self-sufficiency is a gradual journey. Like most smartphone manufacturers, Xiaomi continues to collaborate with specialized suppliers to maintain a balance of cost-efficiency, performance, and innovation.
In the premium phone segment, especially, it’s common for brands to mix proprietary tech with third-party expertise—and Xiaomi is doing just that to deliver a competitive flagship without escalating production costs.
Bottom Line:
Xiaomi’s 15S Pro isn’t just a showcase of the company’s in-house capabilities—it’s also a reflection of strategic collaboration. By blending internal innovation with components from industry leaders, Xiaomi continues to offer powerful smartphones with carefully crafted value propositions.
