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The Samsung Galaxy S21 Ultra is our Readers' Choice best phone of 2021 - Android Authority
Samsung Releases Android 12-Based One UI 4 Stable Update for Galaxy S21 Series | Beebom
Galaxy S21 FE One UI 6.0 (Android 14) update - Samsung Members
Galaxy S21 Series Receives Stable Android 14 Update - Gizchina.com
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Samsung Galaxy S21: Price, release date, features announced for 5G Android
Samsung Galaxy S21 One UI 5.0 (Android 13) update reaches Korea - Sammy Fans
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Samsung March 2023 update brings important patch to Galaxy S21 Exynos models - Sammy Fans
Android 12 for the Samsung Galaxy S21: Hands On and How to Get It | PCMag
Galaxy S21 FE 5G Snapdragon 888 version will get O... - Samsung Members
Samsung Galaxy S21 buyer's guide: Everything you need to know
Galaxy S21/Ultra/Plus: How to Find the Android Version - YouTube
Samsung's Android 13 Beta expands to the Galaxy S21 lineup in the US - GSMArena.com news
Samsung Galaxy S21 review: The best Android phone for the money | Engadget
Samsung Galaxy S21 FE Review: Don't Pay Full Price | WIRED
Samsung starts rolling out Android 14 to the Galaxy S21 series - PhoneArena
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