Phone Comparison - Samsung Galaxy M21 vs Samsung Galaxy A31 vs Samsung Galaxy A12

general General Info

Manufacturer Samsung Samsung Samsung
Announced 2020, March 18 2020, March 24 2020, November 24
Status Coming soon. Exp. release 2020, March 23 Coming Soon - April 2020 Coming Soon - January 2021
Price Rs. 12,999 ($0.00) [Similarly Priced] - Rs. 12,999 ($0.00) [Similarly Priced]
Colors Midnight Blue, Raven Black Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White Black, White, Blue, Red
Form Factor Candybar Candybar Candybar
Dimension 159 x 75.1 x 8.9 mm
(6.26 x 2.96 x 0.35 in)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
164 x 75.8 x 8.9 mm
(6.46 x 2.98 x 0.35 in)
Weight 188 g (6.63 oz) 185 g (6.53 oz) 205 g (7.23 oz)
SIM Type Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) LTE (unspecified) LTE (unspecified)
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (side-mounted)

hardware Hardware and OS

OS Android 10.0 Android 10.0 Android 10
User Interface One UI 2.0 One UI 2.0 -
Processor Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) Octa-core (2.3 GHz, 1.8 GHz)
GPU Mali-G72 MP3 Mali-G52 MC2 -
RAM 6 GB 6 GB 4 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSDXC (dedicated slot) microSDXC microSDXC

display Display

Type Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
420 nits max brightness (advertised)
Super AMOLED Capacitive Touchscreen HD+ TFT display
Colors 16M colors 16M colors 16M Colour
Size 6.4 inches 6.4 inches 6.5 inches
Resolution 1080 x 2340 pixels (403 ppi) 1080 x 2400 pixels (411 ppi) 720 x 1560 pixels (264 ppi)
Screen-to-Body Ratio 84.07% 85.01% 83.64%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio, RDS, recording - Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 48 MP + 8 MP + 5 MP 48 MP + 8 MP + 5 MP + 5 MP 48 MP + 5 MP + 2 MP + 2 MP
Flash LED Flash LED flash LED flash
Features 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, (depth)
Panorama, HDR
48 MP, f/2.0, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.4, (depth)
panorama, HDR
48 MP, f/2.0, (wide), AF
5 MP, f/2.2, 115˚ (ultrawide)
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
panorama, HDR
Video 2160p@30fps, 1080p@30fps, gyro-EIS 1080p@30fps 1080p@30fps
Front Camera 20 MP, f/2.0, (wide), 1/2.8", 1.0μm
HDR
1080p@30fps [Similar]
20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]
8 MP, f/2.2
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Yes
USB 2.0, Type-C 1.0 reversible connector 2.0, Type-C 1.0 reversible connector, USB On-The-Go USB Type-C 2.0
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) 128 GB, 4 GB RAM or 64 GB, 4 GB RAM or 64 GB, 3 GB RAM or 32 GB, 3 GB RAM
Expandable Storage microSDXC (dedicated slot) microSDXC microSDXC
USB OTG Supported Supported Not Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor not present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor not present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor not present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor not present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 6000 mAh 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -