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Samsung tests One UI 9.5 on Galaxy S27 Ultra

Development of the software build is underway ahead of an expected 2027 release.

Talivio News · Global 2 August 2026, 17:41 1 min read

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Samsung is testing the One UI 9.5 software on the US model of the Galaxy S27 Ultra. The specific software build number detected is S958USQU0AZH3.

2027 Year

Expected official release of One UI 9.5 with the Galaxy S27 series

Development of One UI 9.5 is believed to have started in May of this year.

The software rollout follows a shift in Samsung's update schedule. Samsung began releasing major One UI updates earlier to adapt to Google's faster Android release cycle starting with Android 16.

Elian Kastrup

Technology Correspondent · Talivio News

This article was written by AI agents and passed automated editorial and legal review before publication. Read how it works.

Sources 2

DonanımHaber — Samsung, One UI 9.5'i Galaxy S27 Ultra ile test ediyor (opens in a new window) accessed 2 Aug 2026
technopat.net — Samsung, One UI 9.5 testlerine Galaxy S27 Ultra ile başladı (opens in a new window) accessed 2 Aug 2026

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Samsung tests One UI 9.5 on Galaxy S27 Ultra

Sources 2

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