Display
Size:
6.7 inches
6.5 inches
6.8 inches
Resolution:
2778 x 1284 pixels, 19.5:9 ratio, 458 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI
Technology:
OLED
IPS LCD
Dynamic AMOLED
Screen-to-body:
87.45 %
79.20 %
89.33 %
Peak brightness:
1200 cd/m2 (nit)
1500 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
120Hz refresh rate (adaptable), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
Hardware
System chip:
Apple A14 Bionic
Mediatek Helio P35
Qualcomm Snapdragon 888
Processor:
Hexa-core, 3100 MHz, 64-bit, 5 nm
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm
GPU:
Yes
PowerVR GE8320
Adreno 660
RAM:
6GB LPDDR5
3GB LPDDR4
12GB LPDDR5
Internal storage:
128GB (NVMe), not expandable
32GB (eMMC 5.1), available to use: 19.8 GB
128GB (UFS 3.1), not expandable
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
iOS (14.x)
Android (10), Samsung One UI
Android (11), Samsung One UI
Battery
Capacity:
3687 mAh
4000 mAh
5000 mAh
Type:
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
USB Power Delivery, Qi wireless charging, MagSafe wireless charging
Fast charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Max charge speed:
Wireless: 15.0W
Wired: 15.0W
Wired: 25.0W; Wireless: 15.0W
Camera
Rear:
Triple camera
Quad camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
16 MP (PDAF)
108 MP (OIS, Laser and PDAF)
Specifications:
Aperture size: F1.6; Focal length: 26 mm; Pixel size: 1.7 μm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm
Second camera:
12 MP (Telephoto, OIS, PDAF)
8 MP (Ultra-wide)
10 MP (Telephoto, OIS, PDAF)
Specifications:
Optical zoom: 2.5x; Aperture size: F2.2; Focal Length: 65 mm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm
Third camera:
12 MP (Ultra-wide)
2 MP (Macro)
12 MP (Ultra-wide, PDAF)
Specifications:
Aperture size: F2.4; Focal Length: 13 mm
Aperture size: F2.4
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Fourth camera:
2 MP (Depth information)
10 MP (Periscope, OIS, PDAF)
Specifications:
Aperture size: F2.4
Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm
Video recording:
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (30 fps)
1920x1080 (Full HD) (30 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
Features:
OIS, HDR, Time-lapse video, Continuous autofocus, Picture-taking during video recording, Video light
OIS, HDR, Hyperlapse, Video light, EIS
Front:
12 MP (Time-of-Flight (ToF), EIS, HDR, Slow-motion videos)
13 MP
40 MP (PDAF, HDR)
Video capture:
3840x2160 (4K UHD) (60 fps)
1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)
Design
Dimensions:
6.33 x 3.07 x 0.29 inches (160.84 x 78.09 x 7.39 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)
Weight:
8.03 oz (228.0 g)
6.81 oz (193.0 g)
8.04 oz (229.0 g)
Materials:
Back: Glass; Frame: Stainless steel
Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum
Materials & Colors:
Pacific blue, Gold, Silver, Graphite
Resistance:
Water, Splash, Dust; IP68
Water, Dust; IP68
Biometrics:
3D Face unlock
Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint
Keys:
Left: Volume control, Other; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black
Phantom black, Silver
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
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, 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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 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 38(2600), 39(1900+), 40(2300), 41(2600+), 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
SIM type:
Nano SIM, eSIM
Nano SIM
Nano SIM
HD Voice:
Yes
Yes
VoLTE:
Yes
Multimedia
Headphones:
No 3.5mm jack
3.5mm jack
No 3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
Dolby Atmos
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring:
Wireless screen share
Wireless screen share
Wireless screen share
Radio:
FM
FM, Stereo, RDS
Additional microphone(s):
for Noise cancellation
for Noise cancellation, Video recording
Connectivity & Features
Bluetooth:
5.0
5.0
5.1
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
Type-C (reversible), USB 3.2
Features:
Charging, Headphones port
Charging
Charging, Headphones port, OTG, Video out
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, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Barometer, LiDAR scanner
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other:
NFC, UMA (Wi-Fi Calling)
NFC
NFC, ANT+
Hearing aid compatible:
M3, T4
M4, T3
M3, T3
Regulatory Approval
FCC approval:
Date approved:
Apr 17, 2020
Dec 22, 2020
Measured SAR:
Head:
0.42 W/kg
0.77 W/kg
Body:
1.27 W/kg
1.02 W/kg
Simultaneous Transmission:
1.27 W/kg
1.59 W/kg
Wireless Router:
1.27 W/kg
1.16 W/kg
Phablet:
3.15 W/kg
Buyers information
Price:
$ 1100
$ 250
$ 1200
In The Box:
USB‑C to Lightning Cable, Documentation
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
C to C Data Cable, Ejection Pin
Availability
Officially announced:
Oct 13, 2020
Apr 08, 2020
Jan 14, 2021
