[REVISION HISTORY]

Xiaomi HyperOS 4 rollout and POCO F9 series details

Updated 15 times since CLSTR started tracking revisions of this situation.

What changed

2026-08-31 07:34 UTC → 2026-09-11 05:16 UTC · added ~~removed~~

Xiaomi has launched HyperOS 4, introducing a ‘Soft Light Glass’ design language with translucent surfaces and depth effects. The update features an overhauled Camera UI designed for one-handed operation, utilizing glassmorphism panels and MiSans ~~typography for improved legibility.~~ typography. However, the Xiaomi 17 Ultra Leica Edition is reportedly excluded from this specific camera UI redesign due to licensing and co-engineering boundaries with Leica. New reports indicate Xiaomi is developing a ‘Smart Privacy Display’ for HyperOS 4 to prevent bystanders from viewing content from side angles. This feature may utilize ‘hardware-level privacy protection’ to narrow viewing angles, potentially allowing users to apply protections to specific applications or sensitive views like passwords and financial transfers. Xiaomi has officially announced recruitment for its HyperOS 4 global beta programme. The first wave of recruitment begins September 10, 2026, for devices including the Xiaomi 17 Ultra, Xiaomi 17, and the Leica Leitzphone. A second wave starts September 17, 2026, for the Xiaomi 17T Pro, Xiaomi 17T, Xiaomi 15 Ultra, and Xiaomi 15. The update includes the HyperCore Performance Engine for kernel-level optimizations and expands HyperIsland Live Activities to support over 130 apps. Technical analysis indicates HyperOS 4 will be developed exclusively for devices running Android 17, bypassing Android 16. This ~~shift~~ means several ~~popular~~ models, including the Redmi Note 13 Pro ~~4G, Redmi Note 14S,~~ 4G and Poco X6 5G, ~~and Poco M6 Pro 4G,~~ will not receive the major feature update, though security patches may continue through 2028 or 2029. The rollout is organized in stages, with a stable version expected in China by late September and a global release projected for late 2026 to early 2027. update. Regarding the POCO sub-brand, the global launch of the ~~flagship~~ F9 series is confirmed for September 1, ~~2026. The lineup includes the POCO F9 Pro and the POCO F9 Ultra, both utilizing~~ 2026, featuring the ~~Qualcomm~~ Snapdragon 8 Elite Gen 5 chipset. The F9 Ultra is anticipated to feature an 8,050 mAh battery and a 6.85-inch display, while the F9 Pro is expected to include a 6.59-inch QHD+ Plastic OLED screen with a 185Hz refresh rate and a 6,330 mAh battery. Both models will support 100W fast charging and feature ‘Sound by Bose’. The series will emphasize gaming via WildBoost optimization and VisionBoost D8 technology.

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