Display
Size:
6.4 inches
6.5 inches
Resolution:
2960 x 1440 pixels, 18.5:9 ratio, 516 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
Technology:
Super AMOLED
TFT
Screen-to-body:
83.51 %
82.94 %
Features:
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 845 SDM845
Samsung Exynos 850
Processor:
Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit
GPU:
Adreno 630
Mali-G76
RAM:
6GB LPDDR4
3GB LPDDR4
Internal storage:
128GB
32GB (eMMC 5.1), available to use: 19.5 GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (10, 9.0 Pie, 8.1 Oreo), Samsung One UI
Android (10), Samsung One UI
Battery
Capacity:
4000 mAh
5000 mAh
Type:
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Fast charging
Camera
Rear:
Dual camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
12 MP (Telephoto, OIS, Autofocus)
8 MP (Ultra-wide)
Specifications:
Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
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) (960 fps)
1920x1080 (Full HD) (30 fps)
Features:
Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, EIS
Front:
8 MP (Wide Angle, Autofocus)
13 MP
Video capture:
2560x1440 (QHD) (30 fps)
1920x1080 (Full HD)
Design
Dimensions:
6.37 x 3.01 x 0.35 inches (161.9 x 76.4 x 8.8 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)
Weight:
7.09 oz (201.0 g)
6.77 oz (192.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Resistance:
Water, Dust; IP68
Biometrics:
Iris scanner, 2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Features:
Notification light, Stylus
Keys:
Left: Volume control, Lock/Unlock key; Right: Other
Right: Volume control, Lock/Unlock key
Colors:
Midnight black, Ocean blue, Cloud silver, Lavender purple
Black, White, Blue, Red
Cellular
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), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
LTE (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
Bands 38(2600), 40(2300), 41(2600+)
UMTS:
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)
Data Speed:
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
LTE-A, 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, Multiple speakers
Earpiece, Loudspeaker
Features:
32-Bit DAC, Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0
Features:
Charging, OTG, Video out
Charging
Location:
GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope
Other:
NFC, ANT+
NFC
Hearing aid compatible:
M4, T3
Regulatory Approval
FCC approval:
Date approved:
Jul 03, 2018
FCC ID value:
A3LSMN960U
Measured SAR:
Head:
0.27 W/kg
Body:
0.76 W/kg
Simultaneous Transmission:
1.59 W/kg
Wireless Router:
1.35 W/kg
Phablet:
3.90 W/kg
Buyers information
Price:
$ 1000
€ 240
User Manual:
This is the official Samsung Galaxy A21s User Guide in English provided from the manufacturer.
In The Box:
S Pen, USB Cable, Earphones, SIM removal tool, USB power adaptor, USB connector, Pen, nibs, Tweezer, Clear cover case, Quick start guide, USB connector leaflet.
Availability
Officially announced:
Aug 09, 2018
May 15, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless