Display
Size:
6.5 inches
5.8 inches
Resolution:
1600 x 720 pixels, 20:9 ratio, 270 PPI
2960 x 1440 pixels, 18.5:9 ratio, 568 PPI
Technology:
IPS LCD
Super AMOLED
Refresh rate:
60Hz
Screen-to-body:
79.20 %
84.36 %
Features:
Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Hardware
System chip:
Mediatek Helio P35 MT6765 (12 nm)
Qualcomm Snapdragon 845 SDM845 (10 nm)
Processor:
Octa-core, 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53, 64-bit
Octa-core, 2800 MHz, Kryo 385, 64-bit
GPU:
PowerVR GE8320
Adreno 630
RAM:
3GB LPDDR4
4GB LPDDR4
Internal storage:
32GB (eMMC 5.1), available to use: 19.8 GB
64GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 400 GB
Device type:
Smartphone
Smartphone
OS:
Android (10), Samsung One UI
Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Battery
Capacity:
4000 mAh
3000 mAh
Type:
Li - Polymer, Not user replaceable
Li - Ion, Not user replaceable
Charging:
Fast charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Max charge speed:
Wired: 15.0W
Camera
Rear:
Quad camera
Single camera
Main camera:
16 MP (PDAF)
12 MP (OIS, PDAF)
Specifications:
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Second camera:
8 MP (Ultra-wide)
Specifications:
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
Video recording:
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
Features:
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
Front:
13 MP
8 MP (Autofocus, HDR)
Video capture:
1920x1080 (Full HD)
2560x1440 (QHD) (30 fps)
Design
Dimensions:
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
5.81 x 2.70 x 0.33 inches (147.7 x 68.7 x 8.5 mm)
Weight:
6.81 oz (193.0 g)
5.75 oz (163.0 g)
Materials:
Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Resistance:
Water, Dust; IP68
Biometrics:
Fingerprint (touch)
Iris scanner, 2D Face unlock, Fingerprint (touch)
Features:
Notification light
Keys:
Right: Volume control, Lock/Unlock key
Left: Volume control, Other; Right: Lock/Unlock key
Colors:
Black
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue
Cellular
LTE (FDD):
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
LTE (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
UMTS:
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed:
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
SIM type:
Nano SIM
Nano SIM
HD Voice:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
32-Bit DAC, aptX-HD
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.1
Features:
Charging
Charging, OTG, Video out
Location:
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other:
NFC
NFC, ANT+
Hearing aid compatible:
M4, T3
Regulatory Approval
FCC approval:
Date approved:
Apr 17, 2020
Jan 11, 2018
FCC ID value:
ZCASMA215U
A3LSMG960U
Measured SAR:
Head:
0.42 W/kg
0.35 W/kg
Body:
1.27 W/kg
0.96 W/kg
Simultaneous Transmission:
1.27 W/kg
1.59 W/kg
Wireless Router:
1.27 W/kg
0.95 W/kg
Buyers information
Price:
$ 250
$ 720
In The Box:
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Apr 08, 2020
Feb 25, 2018
FCC OKs Cingular\'s purchase of AT&T Wireless