Report: Xiaomi (小米) Surge OS 4 to launch in July or August

Launch details

It has been reported that Xiaomi (小米)’s Surge OS (澎湃 OS) 4 is slated to debut in July or August, with a public beta expected to precede the final release, according to a post by blogger @数码闲聊站 and reported by IT之家. Reportedly the Xiaomi 17 series and the Redmi K90 series will be the first devices to receive the beta. The blogger also suggested that a number of new phones arriving around the same time may still ship with Surge OS 3, while the official first full release could be reserved for a heavier “flagship moment” or the Xiaomi 18 series.

What is the "大会师" product?

The leak reiterates a broader plan fans and investors have been watching: a so‑called “大会师” device that combines a self‑developed chip, a self‑developed OS and an in‑house AI large model. The blogger defined “大会师” as “自研芯片 + 自研 AI 大模型大会师的新品.” It has been reported that Xiaomi founder Lei Jun previously said the company expects to achieve that integration on a single terminal by 2026, signaling an aggressive push to own more of the hardware‑software stack.

Why this matters

Why should Western readers care? China’s leading consumer tech firms have been accelerating vertical integration — from chips to operating systems to AI — in part to reduce reliance on foreign suppliers and to sharpen differentiation in a saturated smartphone market. This push comes against a backdrop of Western export controls and trade‑policy frictions that have made domestic technology sovereignty a higher priority for Chinese companies and regulators. Whether Surge OS 4 will be a meaningful step toward Xiaomi’s “大会师” vision remains to be seen, but the timing and device roadmap will be closely watched.