Display
Size:
6.3 inches
6.5 inches
Resolution:
1520 x 720 pixels, 269 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
Technology:
IPS LCD
IPS LCD
Refresh rate:
60Hz
Screen-to-body:
80.99 %
79.20 %
Colors:
16 777 216
Features:
Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 632 SDM632 (14 nm)
Mediatek Helio P35 MT6765 (12 nm)
Processor:
Octa-core, 1800 MHz, Kryo 250, 64-bit
Octa-core, 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53, 64-bit
GPU:
Adreno 506
PowerVR GE8320
RAM:
4GB LPDDR3
3GB LPDDR4
Internal storage:
64GB
32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion:
microSDXC up to 2000 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (9.0 Pie, 8.1 Oreo)
Android (10), Samsung One UI
Battery
Capacity:
4000 mAh
4000 mAh
Type:
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Fast charging
Max charge speed:
Wired: 15.0W
Camera
Rear:
Dual camera
Quad camera
Main camera:
13 MP (PDAF)
16 MP (PDAF)
Specifications:
Aperture size: F1.8; Pixel size: 1.12 μm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Second camera:
2 MP (Depth information)
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
Flash:
LED
LED
Video recording:
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD)
1920x1080 (Full HD) (30 fps)
Features:
EIS, Video calling, Video sharing
Front:
8 MP (Flash)
13 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.24 x 3.00 x 0.30 inches (158.41 x 76.28 x 7.7 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
Weight:
5.64 oz (160.0 g)
6.81 oz (193.0 g)
Materials:
Back: Metal
Back: Plastic; Frame: Plastic
Biometrics:
2D Face unlock, Fingerprint (touch)
Fingerprint (touch)
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Blue
Black
Cellular
4G (FDD):
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
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)
4G (TDD):
Bands 40(2300)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G:
Bands 8(900), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed:
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Yes
SIM type:
Nano SIM
Nano SIM
HD Voice:
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
4.2
5.0
Wi-Fi:
802.11 b, g, n; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB:
microUSB, USB 2.0
Type-C (reversible), USB 2.0
Features:
Mass storage device, Charging
Charging
Location:
GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass
Other:
VoIP, Tethering, Computer sync, OTA sync
NFC
Hearing aid compatible:
M4, T3
Phone features
Notifications:
Haptic feedback, Music ringtones, Vibration
Other features:
Voice dialing, Voice commands, Voice recording
Regulatory Approval
FCC approval:
Date approved:
Apr 17, 2020
FCC ID value:
ZCASMA215U
Measured SAR:
Head:
0.42 W/kg
Body:
1.27 W/kg
Simultaneous Transmission:
1.27 W/kg
Wireless Router:
1.27 W/kg
Buyers information
Price:
$ 250
In The Box:
Micro-USB cable, Ejector pin (SIM tray needle), USB power adapter (10W), Documentation (user guide, warranty card), Clear soft bumper
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Dec 11, 2018
Apr 08, 2020