Display
Size:
5.5 inches
6.5 inches
Resolution:
1920 x 1080 pixels, 401 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
Technology:
IPS LCD
TFT
Screen-to-body:
73.91 %
82.94 %
Peak brightness:
550 cd/m2 (nit)
Features:
Ambient light sensor, Proximity sensor
Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 660 (14 nm)
Samsung Exynos 850
Processor:
Octa-core, 2200 MHz, Kryo 260, 64-bit
Octa-core, 8x 2.0GHz Cortex-A55, 64-bit
GPU:
Adreno 512
Mali-G76
RAM:
6GB LPDDR4
3GB LPDDR4
Internal storage:
128GB
32GB (eMMC 5.1), available to use: 19.5 GB
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (8.1 Oreo, 7.1 Nougat), Xiaomi MI UI
Android (10), Samsung One UI
Battery
Capacity:
3500 mAh
5000 mAh
Type:
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 3.0
Fast charging
Camera
Rear:
Dual camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.8; Focal length: 27 mm; Pixel size: 1.25 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
12 MP (Telephoto, Autofocus)
8 MP (Ultra-wide)
Specifications:
Optical zoom: 2.0x; Aperture size: F2.6; Focal Length: 52 mm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Third camera:
2 MP (Macro)
Specifications:
Aperture size: F2.4
Fourth camera:
2 MP (Depth information)
Specifications:
Aperture size: F2.4
Flash:
Dual LED
LED
Video recording:
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
1920x1080 (Full HD) (30 fps)
Features:
Video calling, Video sharing
Front:
16 MP
13 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.01 x 2.91 x 0.30 inches (152.6 x 73.95 x 7.6 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)
Weight:
5.75 oz (163.0 g)
6.77 oz (192.0 g)
Materials:
Back: Glass; Frame: Aluminum
Resistance:
Splash
Biometrics:
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Blue
Black, White, Blue, Red
Cellular
4G (FDD):
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
3G:
Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed:
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Yes
Yes
SIM type:
Nano SIM
Nano SIM
Multimedia
Headphones:
No 3.5mm jack
3.5mm jack
Speakers:
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
Screen mirroring:
Wireless screen share
Wireless screen share
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Mass storage device, Charging, Headphones port
Charging
Location:
GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope
Other:
NFC, Infrared, Tethering, Computer sync, OTA sync
NFC
Buyers information
Price:
$ 444
€ 240
User Manual:
This is the official Samsung Galaxy A21s User Guide in English provided from the manufacturer.
Availability
Officially announced:
Sep 11, 2017
May 15, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless