Phone Comparison - Samsung Galaxy M21 vs Samsung Galaxy A31 vs Xiaomi Poco M3

Price Comparison (India) - -

general General Info

Manufacturer Samsung Samsung Xiaomi
Announced 2020, March 18 2020, March 24 2020, November 24
Status Coming soon. Exp. release 2020, March 23 Coming Soon - April 2020 Coming soon. Exp. release 2020, November 27
Price Rs. 12,999 ($0.00) [Similarly Priced] - Rs. 10,999 ($0.00) [Similarly Priced]
Colors Midnight Blue, Raven Black Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White Cool Blue, Poco Yellow, Power Black
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)
162.3 x 77.2 x 9.6 mm
(6.39 x 3.04 x 0.38 in)
Weight 188 g (6.63 oz) 185 g (6.53 oz) 198 g (6.98 oz)
SIM Type Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) 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
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 band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (side-mounted)
Water-repellent coating

hardware Hardware and OS

OS Android 10.0 Android 10.0 Android 10
User Interface One UI 2.0 One UI 2.0 MIUI 12
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 (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm)
GPU Mali-G72 MP3 Mali-G52 MC2 Adreno 610
RAM 6 GB 6 GB 6 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSDXC (dedicated slot) microSDXC microSDXC (dedicated slot)

display Display

Type Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
420 nits max brightness (advertised)
Super AMOLED Capacitive Touchscreen IPS LCD Screen
400 nits (typ)
Corning Gorilla Glass
Colors 16M colors 16M colors 16M Colour
Size 6.4 inches 6.4 inches 6.53 inches
Resolution 1080 x 2340 pixels (403 ppi) 1080 x 2400 pixels (411 ppi) 1080 x 2340 pixels (395 ppi)
Screen-to-Body Ratio 84.07% 85.01% 83.40%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio, RDS, recording - Wireless FM radio (no wired headphones required)
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 48 MP + 8 MP + 5 MP 48 MP + 8 MP + 5 MP + 5 MP 48 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/1.8, (wide), 1/2.0", 0.8µm, PDAF
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
HDR, Panorama
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/2.0, 27mm (wide), 1/4.0", 1.12µm
HDR
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-A
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE 5.0, A2DP, LE
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 Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
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, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, 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, 6 GB RAM or 64 GB, 6 GB RAM (UFS 2.2) - India
128 GB, 4 GB RAM or 64 GB, 4 GB RAM (UFS 2.2) - Global
Expandable Storage microSDXC (dedicated slot) microSDXC microSDXC (dedicated slot)
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor 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 18W
Capacity 6000 mAh 5000 mAh 6000 mAh
Stand by - - -
Talk Time - - -