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S21 SM-G991x S21+ SM-G996x S21 Ultra SM-G998x Dates Announced 4 January 2022 14 January 2021 Released 7 January 2022 29 January 2021 Dimensions mm (in) Height
The lineup of the first three devices was unveiled at Samsung's Galaxy Unpacked event on 14 January 2021. The three devices served as the successors of the 2020 models. All devices' design scheme has changed drastically, redesigning the massive rear-camera module for a slimmer camera module incorporated with the buttons and a uniform appearance for the S21, S21+, and S21 Ultra.
MediaTek Dimensity 8300 Ultra Octa-Core, (1x3.35 GHz Cortex-X715 + 3x3.2 GHz Cortex-A715 + 4x2.2 GHz Cortex-A520) Mali-G615 MC6 Android 14 HyperOS 160.5 mm × 74.3 mm × 8.3 mm 186 g 190 g 5000 mAh Poco M6 MediaTek Helio G91 Ultra (2x2.0 GHz Cortex-A75 + 6x1.8 GHz Cortex-A55) Mali-G52 MC2 128/256 GB microSDXC up to 1 TB 6/8 GB
A leak may have revealed detailed specs for Samsung's Galaxy S21 family, and the Ultra would be the star with S Pen support and more powerful cameras.
Displays supporting refresh rates higher than 60 Hz (such as 90 Hz or 120 Hz) also began to appear on smartphones in 2017; initially confined to "gaming" smartphones such as the Razer Phone (2017) and Asus ROG Phone (2018), they later became more common on flagship phones such as the Pixel 4 (2019) and Samsung Galaxy S21 series (2021). Higher ...
On 4 January 2022, the Samsung Galaxy S21 FE was released, a mid-range variant of the S21 containing similar cameras and performance but with lower features. These smartphones lack the microSD expandable storage previously featured on the entire Galaxy S series except the 2015 S6, and are, for the first time in the series, not equipped with a 3 ...
The S Pen has latency at 2.8ms, reduced from 26ms on Note 20 and 9ms on the Note 20 Ultra and S21 Ultra (although the S21 Ultra had S Pen functionality, it was not included with the phone), and marked the introduction of an 'AI-based co-ordination prediction system'. The S Pen also supports Air gestures and the Air Action system.
One UI is a user interface (UI) developed by Samsung Electronics for its smart devices, including Android devices running Android 9 (Pie) and later. Succeeding Samsung Experience, it is designed to make using larger smartphones easier and be more visually appealing.