Samsung One UI 3.1 Update Brings Select Powerful Features From the Galaxy S21 to the Galaxy S20, Galaxy Note20 and Galaxy Z Series – Samsung Global Newsroom
Samsung Galaxy A51 review: Is it still worth buying in 2021? | NextPit
One UI 3.1 update for Galaxy A51 - Samsung Members
Samsung One UI 3.1 Update Brings Select Powerful Features From the Galaxy S21 to the Galaxy S20, Galaxy Note20 and Galaxy Z Series – Samsung Global Newsroom
Galaxy A51 5G joins the 4G model in receiving One UI 3.1, based on Android 11 - PhoneArena
New features in One UI 3.1 for A51 - Samsung Members