Phone Comparison - Oppo A31 vs Samsung Galaxy A21 vs Xiaomi Redmi Note 9 Pro (Global Version)

general General Info

Manufacturer Oppo Samsung Xiaomi
Announced February 2020 2020, April 8 April 2020
Status Available - February 2020 Coming soon. Exp. release 2020, April Coming Soon - May 2020
Price Rs. 11,490 ($0.00) [Similarly Priced] - -
Colors Fantasy White, Mystery Black Various Tropical Green, Glacier White, Interstellar Gray
Form Factor Candybar Candybar Candybar
Dimension 163.9 x 75.5 x 8.3 mm
(6.45 x 2.97 x 0.33 in)
- 165.8 x 76.7 x 8.8 mm
(6.53 x 3.02 x 0.35 in)
Weight 180 g (6.35 oz) - 209 g (7.37 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 only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE (unspecified) LTE 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor
Glass front, plastic back, plastic frame
- Fingerprint Sensor (side-mounted)

hardware Hardware and OS

OS Android 9.0 (Pie) Android 10.0 Android 10
User Interface ColorOS 6.1 One UI 2.0 MIUI 11
Processor Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765V/CB Helio P35 (12nm) Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm)
GPU PowerVR GE8320 PowerVR GE8320 Adreno 618
RAM 4 GB 3 GB 6 GB
Internal Memory 128 GB 64 GB 128 GB
External Memory microSDXC (dedicated slot) microSDXC (dedicated slot) microSDXC (dedicated slot)

display Display

Type IPS LCD Capacitive Touchscreen HD+ Super AMOLED Capacitive Touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5
Colors 16M colors 16M colors 16M colors
Size 6.5 inches 6.5 inches 6.67 inches
Resolution 720 x 1600 pixels (270 ppi) 720 x 1600 pixels (270 ppi) 1080 x 2400 pixels (395 ppi)
Screen-to-Body Ratio 82.39% - 84.28%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 12 MP + 2 MP + 2 MP 16 MP + 8 MP + 2 MP + 2 MP 64 MP + 8 MP + 5 MP + 2 MP
Flash LED Flash No LED flash
Features 12 MP, f/1.8, (wide), PDAF
2 MP, f/2.4, 27mm (macro), 1/5.0", 1.75µm
2 MP, f/2.4, (depth)
HDR, Panorama
16 MP, f/1.9, 28mm (wide), AF
8 MP, f/2.2, 12mm (ultrawide)
2 MP, (macro)
2 MP, (depth)
panorama, HDR
64 MP, f/1.9, 26mm (wide), 1/1.72", 0.8µm, PDAF
8 MP, f/2.2, 119° (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro), 1/5.0", 1.12µm, AF
2 MP, f/2.4, (depth)
HDR, panorama
Video 1080p@30fps 1080p@30fps 2160p@30fps, 1080p@30/60/120fps, 720p@960fps
Front Camera 8 MP, f/2.0, HDR, 1080p@30fps [Similar] 13 MP
HDR
1080p@30fps [Similar]
16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm
HDR
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

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

memory User Memory

Internal 128 GB, 4 GB RAM 64 GB, 3 GB RAM eMMC 5.1 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1)
Expandable Storage microSDXC (dedicated slot) microSDXC (dedicated 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 not present gyroscope sensor present gyroscope sensor present
NFC NFC not supported NFC not supported NFC supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 30W
Capacity 4230 mAh 4000 mAh 5020 mAh
Stand by - - -
Talk Time - - -