Display
Size:
6.4 inches
6.4 inches
Resolution:
2280 x 1080 pixels, 19.5:9 ratio, 395 PPI
2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
Technology:
Super AMOLED
Super AMOLED
Screen-to-body:
86.66 %
84.11 %
Colors:
16 777 216
Peak brightness:
420 cd/m2 (nit)
Features:
Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Proximity sensor
Hardware
System chip:
Samsung Exynos 7 Octa 7904
Exynos 9611
Processor:
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm
GPU:
Mali-G71 MP2
Mali-G72 MP3
RAM:
6GB LPDDR4
4GB LPDDR4
Internal storage:
128GB, available to use: 107.6 GB
64GB, available to use: 49 GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (9.0 Pie, 8.1 Oreo), Samsung One UI
Android (10), Samsung One UI
Battery
Capacity:
5000 mAh
6000 mAh
Type:
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging
Fast charging
Camera
Rear:
Triple camera
Triple camera
Main camera:
13 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
5 MP (Ultra-wide)
8 MP (Ultra-wide)
Specifications:
Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Third camera:
5 MP (Depth information)
5 MP (Depth information)
Specifications:
Aperture size: F2.2
Aperture size: F2.2
Video recording:
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps)
Features:
Video calling, Video sharing
EIS
Front:
16 MP
20 MP (HDR)
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.26 x 2.96 x 0.33 inches (159 x 75.1 x 8.5 mm)
6.26 x 2.96 x 0.35 inches (159.0 x 75.1 x 8.9 mm)
Weight:
6.14 oz (174.0 g)
6.63 oz (188.0 g)
Materials:
Back: Plastic
Back: Plastic; Frame: Plastic
Biometrics:
2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Features:
Soft keys
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Blue
Midnight blue, Raven black
Cellular
LTE (FDD):
Bands 1(2100), 3(1800), 5(850), 8(900), 20(800 DD)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
LTE (TDD):
Bands 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS:
850, 900, 1900, 2100 MHz
850, 900, 1900, 2100 MHz
Data Speed:
LTE-A, 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
Yes
SIM type:
Nano SIM
Nano SIM
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Album art cover, Background playback, Dolby Atmos
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Mass storage device, Charging
Charging
Location:
GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope
Other:
VoIP, Tethering, Computer sync, OTA sync
Phone features
Notifications:
Haptic feedback, Music ringtones, Vibration
Other features:
Voice dialing, Voice commands, Voice recording
Regulatory Approval
Measured SAR:
Head:
0.28 W/kg
Body:
0.39 W/kg
Simultaneous Transmission:
1.24 W/kg
Wireless Router:
0.93 W/kg
Buyers information
In The Box:
This is the official Samsung Galaxy M21 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Feb 27, 2019
Mar 18, 2020
