- Samsung releases Android 12-powered One UI 4 for Galaxy S21 phonesThe Verge
- One UI 4 now available for Galaxy S21 series, Samsung bringing it to these phones ‘at a later date’Android Police
- Samsung reveals the One UI 4.0 upgrade rollout schedule for its devicesXDA Developers
- Samsung’s Galaxy S21 series updated to One UI 4 with new Android 12 featuresEngadget
- BREAKING: Galaxy S21 series One UI 4.0 update now rolling out globally!SamMobile