One UI 7 rollout may be late, but Samsung is already testing One UI 8

Samsung is skipping ahead as One UI 8 development starts earlier than usual.

Mar 7, 2025 - 22:07
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One UI 7 rollout may be late, but Samsung is already testing One UI 8
Samsung Galaxy S25 Ultra with s pen and warning
Credit: Ryan Haines / Android Authority
  • Samsung’s One UI 8 build for the Galaxy S25 series has been spotted online, suggesting that internal testing has already begun.
  • The development has started roughly two months earlier than usual, suggesting Samsung might be trying to speed up its update cycle.
  • The early push for One UI 8 comes amid delays in the rollout of the One UI 7 update, which is set to begin in April.

Samsung is known for offering one of the best software update policies among Android phone makers, but the company has recently faced mounting criticism over the speed of its rollouts. The delays surrounding One UI 7, which is based on Android 15, have been particularly frustrating for users. Despite Android 15’s official release last year, Samsung only recently confirmed that its One UI 7 rollout would begin in April — months behind schedule.

However, the company now appears to be taking steps to speed things up. According to a recent post by tipster Tarun Vats on X (formerly Twitter), Samsung has already started internal testing for One UI 8, its next major software update based on Android 16. The first test build has been spotted on Samsung’s servers, marking an earlier-than-usual start to development for the Galaxy S25 series. The leaked build version, S938BXXU1BYC1/S938BOXM1BYC1/S938BXXU1BYC1, suggests that work on One UI 8 is already well underway — roughly two months ahead of Samsung’s usual timeline.