Display
Size:
6.0 inches
6.5 inches
Resolution:
2160 x 1080 pixels, 18:9 ratio, 402 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
Technology:
OLED
TFT
Screen-to-body:
80.97 %
82.94 %
Features:
HDR support, Ambient light sensor, Proximity sensor
Proximity sensor
Hardware
System chip:
HiSilicon Kirin 970
Samsung Exynos 850
Processor:
Octa-core, 2360 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit
GPU:
Mali-G72 MP12
Mali-G76
RAM:
6GB LPDDR4
3GB LPDDR4
Internal storage:
128GB, not expandable
32GB (eMMC 5.1), available to use: 19.5 GB
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (9.0 Pie, 8.0 Oreo), Huawei Emotion UI
Android (10), Samsung One UI
Battery
Capacity:
4000 mAh
5000 mAh
Type:
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Fast charging
Fast charging
Camera
Rear:
Dual camera
Quad camera
Main camera:
12 MP (OIS, Laser and PDAF, CMOS image sensor, BSI sensor)
48 MP (PDAF)
Specifications:
Aperture size: F1.6; Focal length: 27 mm; Sensor size: 1/2.9"; Pixel size: 1.25 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
20 MP (Black and White, OIS, Laser and PDAF, CMOS image sensor)
8 MP (Ultra-wide)
Specifications:
Aperture size: F1.6; Focal Length: 27 mm; Sensor size: 1/2.7"; 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) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD)
1920x1080 (Full HD) (30 fps)
Features:
Time-lapse video, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, Video calling, Video sharing
Front:
8 MP
13 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.07 x 2.93 x 0.31 inches (154.2 x 74.5 x 7.9 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)
Weight:
6.28 oz (178.0 g)
6.77 oz (192.0 g)
Materials:
Back: Glass; Frame: Metal
Resistance:
Water, Dust; IP67
Biometrics:
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Features:
Notification light
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Gray, Brown, Pink, Blue
Black, White, Blue, Red
Cellular
LTE (FDD):
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 9(1800), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 32(1500 L-band)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
LTE (TDD):
Bands 39(1900+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS:
Bands 6(800), 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 5.76 Mbit/s, HSUPA, UMTS
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:
No 3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
Screen mirroring:
Wireless screen share
Wireless screen share
Additional microphone(s):
for Noise cancellation, Video recording
Connectivity & Features
Bluetooth:
4.2
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; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible)
Type-C (reversible), USB 2.0
Features:
Mass storage device, Charging, Video out, Headphones port
Charging
Location:
GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope
Other:
NFC, UMA (Wi-Fi Calling), Infrared, VoIP, Tethering, Computer sync, OTA sync
NFC
Regulatory Approval
FCC approval:
Date approved:
Oct 19, 2017
FCC ID value:
QISBLA-L09
Measured SAR:
Head:
1.06 W/kg
Body:
0.88 W/kg
Simultaneous Transmission:
1.59 W/kg
Wireless Router:
1.09 W/kg
Phablet:
3.95 W/kg
Buyers information
Price:
€ 240
User Manual:
This is the official Samsung Galaxy A21s User Guide in English provided from the manufacturer.
In The Box:
USB-C Earphones, Charger, USB-C Cable, USB-C to 3.5 mm Headphone Jack Adapter, Flexible Clear Case, Quick Start Guide, Eject tool
Availability
Officially announced:
Oct 16, 2017
May 15, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless