Samsung unveiled the flagship Samsung Galaxy S21 line of camera phones online on February 09, 2022. It consists of 3 models: the base Galaxy S21 5G, Galaxy S21+ 5G and Galaxy S21 Ultra. The main feature of the series, as befits a flagship, is support for the HDR10+ display, 120 Hz refresh rate, 8K shooting at 30fps and improved 5G support. The entire line runs on the Android 11 operating system with the updated One UI 3.1 shell. Samsung did not change its tradition and the European versions of phones are based on their Exynos 2100 processor for the European market, while models based on Qualcomm 888 are supplied for the American market. And now more about each model.
Samsung Galaxy S21 LTE\5G

Platform
OS: Android 13CPU: Exynos 2100 (Global)
CPU: Snapdragon 888 (USA)
SIM: 2 (1+1 or 1+eSIM)
Memory
8/128, 8/256External card: no
Size
6.2", 171 g, 5.96 oz151.7 x 71.2 x 7.9 mm
5.97 x 2.80 x 0.31 in
Battery
4000 mAhMain camera
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm
12 MP, f/2.2, 13mm, (ultrawide), 1/2.55" 1.4µm
Video modes
8K@24fps4K@30/60fps
1080p@30/60/240fps
720p@960fps
Selfie camera
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µmVideo modes:
4K@30/60fps1080p@30fps
Comes in LTE (Samsung Galaxy s20) and 5G (Samsung Galaxy s20 5G) versions Comes in two versions with or without 5G support, 5G model has 5G band as a suffix stating about this band support The base model, the smallest in size if a 6.2-inch phone can be called small. There is only one option to choose from - 8GB of RAM and 128/256GB. The battery capacity is 4000 mAh.
Samsung Galaxy S21+ 5G

Platform
OS: Android 13CPU: Exynos 2100 (Global)
CPU: Snapdragon 888 (USA)
SIM: 2 (1+1 or 1+eSIM)
Memory
8/128, 8/256External card: no
Size
6.7", 202 g (7.05 oz)161.5 x 75.6 x 7.8 mm
6.36 x 2.98 x 0.31 in
Battery
4800 mAhMain camera
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm64 MP, f/2.0, 29mm, 1/1.72", 0.8µm
12 MP, f/2.2, 13mm, 1/2.55", 1.4µm
Video modes
8K@24fps4K@30/60fps
1080p@30/60/240fps
720p@960fps
Selfie camera
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µmVideo modes
4K@30/60fps1080p@30fps
Also sells in two variants, same as non-plus model, with or without 5G support. In this model, the screen is larger and is 6.7 inches, the battery is increased to 4800 mAh. The memory options are similar to the base model, 8 RAM and 128 / 256GB for data.
Samsung Galaxy S21 Ultra 5G

Platform
OS: Android 13CPU: Exynos 2100 (Global)
CPU: Snapdragon 888 (USA)
SIM: 2 (1+1 or 1+eSIM)
Memory
12/128, 12/256, 12/51216/256, 16/512
External card: no
Size
6.8", 229 g (8.01 oz)165.1 x 75.6 x 8.9 mm
6.5 x 2.98 x 0.35 in
Battery
5000 mAhMain camera
108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm
10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm
12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm
Video modes
8K@24fps4K@30/60fps
1080p@30/60/240fps
720p@960fps
Selfie camera
40 MP, f/2.2, 26mm, 1/2.8", 0.7µmVideo modes
4K@30/60fps1080p@30fps
Samsung Galaxy S21 FE

Platform
OS: Android 12CPU: Exynos 2100 (Global)
CPU: Snapdragon 888 (USA)
SIM: 2 (1+1 or 1+eSIM)
Memory
6/128, 8/128, 8/256External card: no
Size
6.4", 177 g (6.24 oz)155.7 x 74.5 x 7.9 mm
6.13 x 2.93 x 0.31 in
Battery
4500 mAhMain camera
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm8 MP, f/2.4, 76mm (telephoto), 1/4.5", 1.0µm
12 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.0", 1.12µm
Video modes
4K@30/60fps1080p@30/60/120/240fps
720@960fps
Selfie camera
32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µmVideo modes
4K@30/60fps1080p@30/60fps