What you need to knowSamsung is surprisingly rolling out its One UI 8 update early on several past-gen and mid-range devices. The update's been spotted on the Galaxy S23 series, the Flip 5, Fold 5, its A35/A55 mid-range phones, and its Galaxy S10 Plus tablet. An array of Samsung's older Galaxy phones, and even some mid-range models, are receiving its big One UI update of 2025. It's been update frenzy today (Sep 29), as SamMobile reports that Samsung's One UI 8 update has been spotted on several past-gen devices. The Galaxy S23, S23 Plus, and S23 Ultra have been reportedly receiving the Android 16 update, which hauls in a huge 3GB download size.