Display
Size:
6.5 inches
5.7 inches
Resolution:
1600 x 720 pixels, 20:9 ratio, 270 PPI
2280 x 1080 pixels, 19:9 ratio, 443 PPI
Technology:
IPS LCD
OLED
Refresh rate:
60Hz
90Hz
Screen-to-body:
79.20 %
77.32 %
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 855 SM8150 (7 nm)
Processor:
Octa-core, 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53, 64-bit
Octa-core, 2840 MHz, Kryo 485, 64-bit
GPU:
PowerVR GE8320
Adreno 640
RAM:
3GB LPDDR4
6GB LPDDR4
Internal storage:
32GB (eMMC 5.1), available to use: 19.8 GB
64GB, not expandable
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (10), Samsung One UI
Android (12, 11, 10)
Battery
Capacity:
4000 mAh
2800 mAh
Type:
Li - Polymer, Not user replaceable
Not user replaceable
Charging:
Fast charging
USB Power Delivery, Qi wireless charging
Max charge speed:
Wired: 15.0W
Camera
Rear:
Quad camera
Dual camera
Main camera:
16 MP (PDAF)
12.2 MP (OIS, PDAF)
Specifications:
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.7; Focal length: 28 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Second camera:
8 MP (Ultra-wide)
16 MP (Telephoto, OIS, PDAF)
Specifications:
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.4; Focal Length: 45 mm; Pixel size: 1 μm
Third camera:
2 MP (Macro)
Specifications:
Aperture size: F2.4
Fourth camera:
2 MP (Depth information)
Specifications:
Aperture size: F2.4
Flash:
LED
Dual LED
Video recording:
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
OIS, Time-lapse video, EIS
Front:
13 MP
8 MP (Dual-Camera, Time-of-Flight (ToF))
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
5.79 x 2.71 x 0.32 inches (147.1 x 68.8 x 8.2 mm)
Weight:
6.81 oz (193.0 g)
5.71 oz (162.0 g)
Materials:
Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Resistance:
Water, Dust; IP68
Biometrics:
Fingerprint (touch)
3D Face unlock
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black
Just black, Clearly white, Oh so orange
Cellular
4G (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)
4G (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G:
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
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 5.76 Mbit/s
Dual SIM:
Yes
SIM type:
Nano SIM
Nano SIM, eSIM
HD Voice:
Yes
Multimedia
Headphones:
3.5mm jack
No 3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
aptX-HD
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
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, Headphones port
Location:
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Barometer
Other:
NFC
NFC
Hearing aid compatible:
M4, T3
M3, T3
Regulatory Approval
FCC approval:
Date approved:
Apr 17, 2020
Sep 03, 2019
FCC ID value:
ZCASMA215U
A4RG020I
Measured SAR:
Head:
0.42 W/kg
1.20 W/kg
Body:
1.27 W/kg
1.34 W/kg
Simultaneous Transmission:
1.27 W/kg
1.59 W/kg
Wireless Router:
1.27 W/kg
1.01 W/kg
Buyers information
Price:
$ 250
$ 799
In The Box:
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
18W USB-C power adapter, 1m USB-C to USB-C cable, Quick Start Guide, Quick Switch Adapter, SIM tool
Availability
Officially announced:
Apr 08, 2020
Oct 15, 2019