Display
Size:
5.4 inches
6.5 inches
4.7 inches
Resolution:
2340 x 1080 pixels, 19.5:9 ratio, 477 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
1334 x 750 pixels, 16:9 ratio, 326 PPI
Technology:
OLED
IPS LCD
IPS LCD
Screen-to-body:
85.83 %
79.20 %
65.34 %
Peak brightness:
1200 cd/m2 (nit)
625 cd/m2 (nit)
Features:
60Hz refresh rate, HDR support, Oleophobic coating, Scratch-resistant glass (Ceramic Shield), Ambient light sensor, Proximity sensor
60Hz refresh rate, Ambient light sensor, Proximity sensor
Oleophobic coating, Scratch-resistant glass, Ambient light sensor, Proximity sensor
Hardware
System chip:
Apple A14 Bionic
Mediatek Helio P35
Apple A13 Bionic APL1W85
Processor:
Hexa-core, 3100 MHz, 64-bit, 5 nm
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Hexa-core, 2650 MHz, Lightning and Thunder, 64-bit, 7 nm
GPU:
Yes
PowerVR GE8320
Apple-designed 4 core
RAM:
4GB
3GB LPDDR4
3GB LPDDR4
Internal storage:
64GB (NVMe), not expandable
32GB (eMMC 5.1), available to use: 19.8 GB
64GB, not expandable
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
iOS (14.x)
Android (10), Samsung One UI
iOS (14.x, 13.x)
Battery
Capacity:
2227 mAh
4000 mAh
1821 mAh
Type:
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Li - Ion, Not user replaceable
Charging:
USB Power Delivery, Qi wireless charging, MagSafe wireless charging
Fast charging
USB Power Delivery, Qi wireless charging
Max charge speed:
Wireless: 15.0W
Wired: 15.0W
Camera
Rear:
Dual camera
Quad camera
Single camera
Main camera:
12 MP (Sapphire crystal lens cover, OIS, PDAF)
16 MP (PDAF)
12 MP (Sapphire crystal lens cover, OIS, PDAF, CMOS image sensor, BSI sensor)
Specifications:
Aperture size: F1.6; Focal length: 26 mm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.8; Focal length: 28 mm; Sensor size: 1/3"; Pixel size: 1.22 μm
Second camera:
12 MP (Ultra-wide, Sapphire crystal lens cover)
8 MP (Ultra-wide)
Specifications:
Aperture size: F2.4; Focal Length: 13 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
Video recording:
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD)
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps)
Features:
OIS, Time-lapse video, Continuous autofocus, Picture-taking during video recording, Video light
OIS, Time-lapse video, Continuous autofocus
Front:
12 MP (EIS, HDR, Slow-motion videos)
13 MP
7 MP (EIS, HDR)
Video capture:
3840x2160 (4K UHD) (60 fps)
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
5.18 x 2.53 x 0.29 inches (131.5 x 64.2 x 7.4 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
5.45 x 2.65 x 0.29 inches (138.4 x 67.3 x 7.3 mm)
Weight:
4.76 oz (135.0 g)
6.81 oz (193.0 g)
5.22 oz (148.0 g)
Materials:
Back: Glass; Frame: Aluminum
Back: Plastic; Frame: Plastic
Back: Glass; Frame: Aluminum
Resistance:
Water, Dust; IP68
Water, Dust; IP67
Biometrics:
3D Face unlock
Fingerprint (touch)
Fingerprint (touch)
Keys:
Left: Volume control, Other; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Left: Volume control, Other; Right: Lock/Unlock key
Colors:
Black, White, Red, Green, Blue
Black
Black, White, Red
Cellular
5G:
n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n71, n77, n78, n79, n260, n261, Sub-6, mmWave
LTE (FDD):
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), 32(1500 L-band), 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), 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+), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
LTE (TDD):
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46, 48(3600)
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)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed:
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Yes
SIM type:
Nano SIM, eSIM
Nano SIM
Nano SIM
HD Voice:
Yes
Yes
Yes
VoLTE:
Yes
Yes
Multimedia
Headphones:
No 3.5mm jack
3.5mm jack
No 3.5mm jack
Speakers:
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Wireless screen share
Radio:
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax, dual-band; MIMO, Hotspot
USB:
Lightning
Type-C (reversible), USB 2.0
Lightning
Features:
Charging, Headphones port
Charging
Charging, Headphones port
Location:
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Barometer
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Barometer
Other:
NFC, UMA (Wi-Fi Calling)
NFC
NFC, UMA (Wi-Fi Calling)
Hearing aid compatible:
M3, T4
M4, T3
T4
Regulatory Approval
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:
$ 729
$ 250
$ 399
In The Box:
USB-C to Lightning Cable, Documentation
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
EarPods with Lightning Connector, Lightning to USB Cable, USB Power Adapter, Documentation
Availability
Officially announced:
Oct 13, 2020
Apr 08, 2020
Apr 15, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless