Phone / Tablet / Laptop / E-Reader / Desktop LCD / HDTV

Samsung S21 Ultra has a pixel density of:
516.04

A.K.A.
Released: 2021

Resolution: 3200×1440 6.8″ display

Totaling 4.61mp (megapixels) and having a PPI of 516.04

Category: Phone
Tags: oled, sasung

Samsung Galaxy S21
Samsung Galaxy S21+
Samsung Galaxy S21 Ultra
Samsung Galaxy S21 FE
Galaxy S21 Logo 5G.svg
GalaxyS21.pngFrom left to right S21, S21 FE, S21+, and S21 Ultra.
Codename Unbound
Brand Samsung Galaxy
Manufacturer Samsung Electronics
Slogan Everyday Epic
Series Galaxy S
Model International models:
SM-G990x (S21 FE)
SM-G991x (S21)
SM-G996x (S21+)
SM-G998x (S21 Ultra)
(Last letter varies by carrier and international models)
Japanese models:
SCG09 (au, S21 5G)
SC-51B (NTT Docomo, S21 5G)
SCG10 (au, S21+ 5G)
SC-52B (NTT Docomo, S21 Ultra 5G)
Compatible networks 2G, 3G, 4G, 5G
First released January 14, 2021; 20 months ago (2021-01-14) (S21, S21+, and S21 Ultra)
January 3, 2022; 9 months ago (2022-01-03) (S21 FE)
Availability by region January 29, 2021; 20 months ago (2021-01-29) (S21, S21+, and S21 Ultra)
January 11, 2022; 8 months ago (2022-01-11) (S21 FE)
Predecessor Samsung Galaxy S20
Samsung Galaxy Note 20 Ultra
Successor Samsung Galaxy S22
Type Smartphone
Form factor Slate
Dimensions S21: 151.7 mm (5.97 in) H
71.2 mm (2.80 in) W
7.9 mm (0.31 in) DS21 FE: 155.7 mm (6.13 in) H
74.5 mm (2.93 in) W
7.9 mm (0.31 in) D
S21+: 161.5 mm (6.36 in) H
75.6 mm (2.98 in) W
7.8 mm (0.31 in) D
S21 Ultra: 165.1 mm (6.50 in) H
75.6 mm (2.98 in) W8.9 mm (0.35 in) D
Mass S21: 169 g (6.0 oz)S21 FE: 177 g (6.2 oz)S21+: 200 g (7.1 oz)S21 Ultra: 227 g (8.0 oz)
Operating system Original: Android 11 with One UI 3.1
Upgradable: Android 12 with One UI 4.1
System on chip International: Samsung Exynos 2100United States, Canada, China, Japan: Qualcomm Snapdragon 888
CPU Exynos: Octa-core (1×2.9 GHz Cortex-X1, 3×2.80 GHz Cortex-A78 and 4×2.2 GHz Cortex-A55)Snapdragon: Octa-core (1×2.84 GHz, 3×2.42 GHz and 4×1.80 GHz) Kryo 680
GPU Exynos: Mali-G78 MP14Snapdragon: Adreno 660
Memory S21 FE 6/8 GB RAMS21/S21+: 8 GB RAMS21 Ultra: 12/16 GB RAM
Storage S21/S21+/S21 FE: 128/256 GB UFS 3.1S21 Ultra: 128/256/512 GB UFS 3.1
Removable storage None
SIM nanoSIM, eSIM
Single SIM or Hybrid Dual SIM in dual stand-by
Battery S21: 4000 mAh Lithium polymerS21 FE: 4500 mAh Lithium polymerS21+: 4800 mAh Lithium polymerS21 Ultra: 5000 mAh Lithium polymer
Charging USB PD: 25W (PPS), 15W (non-PPS)
15 W QI wireless
4.5 W Reverse wireless
Display Dynamic AMOLED 2X Infinity-O capacitive touchscreen, 11Hz-120 Hz refresh rate, 20:9 aspect ratio, HDR10+S21: 6.2 in (160 mm) 1080 × 2400 (2.5 MP) (421 ppi) 1300 nits, ~87.2% screen-to-body ratioS21 FE: 6.4 in (160 mm) 1080 × 2400 (411 ppi) 1300 nits, ~89.6% screen-to-body ratioS21+: 6.7 in (170 mm) 1080 × 2400 (394 ppi) 1300 nits, ~88.3% screen-to-body ratioS21 Ultra: 6.8 in (170 mm) 1440 × 3200 (4.6 MP) (515 ppi) 1600 nits, ~89.8% screen-to-body ratio
External display Always on
Sound Dolby Atmos stereo speakers tuned by AKG
Rear camera All: Features: LED flash, auto-HDR, panorama
Video: 8K@24fps, 4K@30/60fps, 1080p@30/60/120fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
S21 FE:

12 MP, f/1.8, 26 mm (wide), Dual Pixel PDAF, OIS
8 MP, f/2.4, 76 mm (telephoto), 1/1.76″, 0.8µm, PDAF, 3x optical
12 MP, f/2.2, 13 mm 123° (ultrawide)

S21 and S21+:

64 MP, f/1.8, 26 mm (wide), 1/1.76″, 1.8µm, Dual Pixel PDAF, OIS
12 MP, f/2.0, 28 mm (telephoto), 1/1.76″, 0.8µm, PDAF, OIS, 1.1x optical, 3x hybrid
12 MP, f/2.2, 13 mm 120° (ultrawide), 1/2.55″ 1.4µm, Super Steady video

S21 Ultra:

108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33″, 0.8µm, PDAF, Laser AF, OIS
10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24″, 1.22µm, dual pixel PDAF, OIS, 10x optical
10 MP, f/2.4, 70mm (telephoto), 1/3.24″, 1.22µm, dual pixel PDAF, OIS, 3x optical
12 MP, f/2.2, 13mm (ultrawide), 1/2.55″, 1.4µm, dual pixel PDAF, Super Steady video

Front camera S21 and S21+: 10 MP, f/2.2, 26mm (wide), 1/3.24″, 1.22µm, Dual Pixel PDAFS21 FE: 32 MP, f/2.2, 26mm (wide), 1/2.74″, 0.8µm, Dual Pixel PDAFS21 Ultra: 40 MP, f/2.2, 26mm (wide), 1/2.8″, 0.7µm, PDAF
Connectivity Bluetooth 5.2Wi-Fi 802.11 a/b/g/n/ac/6(e)
Data inputs USB-C 3.2
Sensors:

Accelerometer
Barometer
Fingerprint scanner (S21/S21+/S21 Ultra: ultrasonic)
(S21 FE: optical)
Pressure sensor
Magnetometer
Gyroscope
Hall sensor
Proximity sensor
RGB Light Sensor

Water resistance IP68 water/dust resistance, up to 1.5 m for 30 minutes
SAR S21: 0.74 W/kg (head)
1.08 W/kg (body)
EU: 0.46 W/kg (head)
1.51 W/kg (body)
S21 FE: 0.77 W/kg (head)
0.90 W/kg (body)
EU: 0.95 W/kg (head)
1.48 W/kg (body)
S21+: 0.65 W/kg (head) 0.95 W/kg (body)
EU: 0.54 W/kg (head) 1.33 W/kg (body)
S21 Ultra: 0.77 W/kg (head) 1.02 (body)
EU: 0.71 W/kg (head) 1.58 W/kg (body)
Website S21 and S21+
S21 Ultra
S21 FE
References [1][2][3][4]

This righthand infobox courtesy of Wikipedia.

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