Phone Comparison - Samsung Galaxy A31 vs Xiaomi Redmi Note 9 Pro 5G vs Xiaomi Redmi Note 9 4G

general General Info

Manufacturer Samsung Xiaomi Xiaomi
Announced 2020, March 24 2020, November 26 November 2020
Status Coming Soon - April 2020 Coming soon. Exp. release 2020, December Coming Soon - December 2020
Colors Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White Gray, Blue, Red/Mint Gray, Green, Blue, Orange
Form Factor Candybar Candybar Candybar
Dimension 159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
165.4 x 76.8 x 9 mm
(6.51 x 3.02 x 0.35 in)
162.3 x 77.3 x 9.6 mm
(6.39 x 3.04 x 0.38 in)
Weight 185 g (6.53 oz) 215 g (7.58 oz) 198 g (6.98 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) 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 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100
4G Network LTE (unspecified) 1, 3, 5, 7, 8, 34, 38, 39, 40, 41 1, 3, 5, 8, 34, 38, 39, 40, 41
5G Network - 1, 3, 41, 78, 79 SA/NSA/Sub6 -
Messaging
Build Features - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (side-mounted)
- Fingerprint Sensor

hardware Hardware and OS

OS Android 10.0 Android 10 Android 10
User Interface One UI 2.0 MIUI 12 MIUI 12
Processor Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570), Qualcomm SM7225 Snapdragon 750G 5G (8 nm) Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm)
GPU Mali-G52 MC2 Adreno 619 Adreno 610
RAM 6 GB 8 GB 8 GB
Internal Memory 128 GB 256 GB 256 GB
External Memory microSDXC microSDXC (uses shared SIM slot) microSDXC (dedicated slot)

display Display

Type Super AMOLED Capacitive Touchscreen IPS LCD Screen
Corning Gorilla Glass 5
120Hz Refesh Rate
HDR10
450 nits (typ)
IPS LCD Screen
Corning Gorilla Glass 3
400 nits (typ)
Colors 16M colors 16M Colour 16M Colour
Size 6.4 inches 6.67 inches 6.53 inches
Resolution 1080 x 2400 pixels (411 ppi) 1080 x 2400 pixels (395 ppi) 1080 x 2340 pixels (395 ppi)
Screen-to-Body Ratio 85.01% 84.37% 83.29%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 48 MP + 8 MP + 5 MP + 5 MP 108 MP + 8 MP + 2 MP + 2 MP 48 MP + 8 MP + 2 MP
Flash LED flash Dual-LED dual-tone flash LED Flash
Features 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
108 MP, f/1.75, 26mm (wide), 1/1.52", 0.8µm, PDAF
8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
HDR, panorama
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (depth)
HDR, Panorama
Video 1080p@30fps 4K@30fps, 1080p@30fps 1080p@30fps
Front Camera 20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]
16 MP, f/2.0
HDR, panorama
1080p@30fps [Similar]
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE-A, 5G HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE 4.2, A2DP
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, USB On-The-Go USB Type-C 2.0 USB Type-C 2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, GALILEO, 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) 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM UFS 2.2 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM
Expandable Storage microSDXC microSDXC (uses shared SIM slot) 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 33W
Non-removable Li-Po Battery
Fast battery charging 18W
Reverse charging 2.5W
Capacity 5000 mAh 4820 mAh 6000 mAh
Stand by - - -
Talk Time - - -