Display
Size:
5.4 inches
6.5 inches
6.1 inches
Resolution:
2340 x 1080 pixels, 19.5:9 ratio, 477 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
2532 x 1170 pixels, 19.5:9 ratio, 457 PPI
Technology:
OLED
IPS LCD
OLED
Screen-to-body:
85.83 %
79.20 %
86.93 %
Peak brightness:
1200 cd/m2 (nit)
1200 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
60Hz refresh rate, HDR support, Oleophobic coating, Scratch-resistant glass (Ceramic Shield), Ambient light sensor, Proximity sensor
Hardware
System chip:
Apple A14 Bionic
Mediatek Helio P35
Apple A14 Bionic
Processor:
Hexa-core, 3100 MHz, 64-bit, 5 nm
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Hexa-core, 3100 MHz, 64-bit, 5 nm
GPU:
Yes
PowerVR GE8320
Yes
RAM:
4GB
3GB LPDDR4
6GB LPDDR5
Internal storage:
64GB (NVMe), not expandable
32GB (eMMC 5.1), available to use: 19.8 GB
128GB (NVMe), 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)
Battery
Capacity:
2227 mAh
4000 mAh
2815 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, MagSafe wireless charging
Max charge speed:
Wireless: 15.0W
Wired: 15.0W
Wireless: 15.0W
Camera
Rear:
Dual camera
Quad camera
Triple camera
Main camera:
12 MP (Sapphire crystal lens cover, OIS, PDAF)
16 MP (PDAF)
12 MP (OIS, PDAF)
Specifications:
Aperture size: F1.6; Focal length: 26 mm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.6; Focal length: 26 mm; Pixel size: 1.4 μm
Second camera:
12 MP (Ultra-wide, Sapphire crystal lens cover)
8 MP (Ultra-wide)
12 MP (Telephoto, OIS, PDAF)
Specifications:
Aperture size: F2.4; Focal Length: 13 mm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Optical zoom: 2.0x; Aperture size: F2.0; Focal Length: 52 mm
Third camera:
2 MP (Macro)
12 MP (Ultra-wide)
Specifications:
Aperture size: F2.4
Aperture size: F2.4; Focal Length: 13 mm
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), 1280x720 (HD) (30 fps)
Features:
OIS, Time-lapse video, Continuous autofocus, Picture-taking during video recording, Video light
OIS, HDR, Time-lapse video, Continuous autofocus, Picture-taking during video recording, Video light
Front:
12 MP (EIS, HDR, Slow-motion videos)
13 MP
12 MP (Time-of-Flight (ToF), EIS, HDR, Slow-motion videos)
Video capture:
3840x2160 (4K UHD) (60 fps)
1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)
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)
5.78 x 2.82 x 0.29 inches (146.7 x 71.6 x 7.4 mm)
Weight:
4.76 oz (135.0 g)
6.81 oz (193.0 g)
6.66 oz (189.0 g)
Materials:
Back: Glass; Frame: Aluminum
Back: Plastic; Frame: Plastic
Back: Glass; Frame: Stainless steel
Materials & Colors:
Pacific blue, Gold, Silver, Graphite
Resistance:
Water, Dust; IP68
Water, Splash, Dust; IP68
Biometrics:
3D Face unlock
Fingerprint (touch)
3D Face unlock
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
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
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+), 28(700 APT), 29(700 d), 30(2300 WCS), 32(1500 L-band), 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 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, 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, UMTS
Dual SIM:
Yes
Yes
SIM type:
Nano SIM, eSIM
Nano SIM
Nano SIM, eSIM
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, Loudspeaker
Features:
Dolby Atmos
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 (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, 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, BeiDou, QZSS, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Barometer
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Barometer, LiDAR scanner
Other:
NFC, UMA (Wi-Fi Calling)
NFC
NFC, UMA (Wi-Fi Calling)
Hearing aid compatible:
M3, T4
M4, T3
M3, 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
$ 1000
In The Box:
USB-C to Lightning Cable, Documentation
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
USB‑C to Lightning Cable, Documentation
Availability
Officially announced:
Oct 13, 2020
Apr 08, 2020
Oct 13, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless