Phone Comparison - Oppo A9 (2020) vs Oppo A91 vs Samsung Galaxy A31

general General Info

Manufacturer Oppo Oppo Samsung
Announced September 2019 2019, December 2020, March 24
Status Coming Soon - 2019 Coming soon. Exp. release 2019, December 26 Coming Soon - April 2020
Price Rs. 16,990 ($0.00) [Similarly Priced] - -
Colors Marine Green, Space Purple Black, Blue, Red Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Form Factor Candybar Candybar Candybar
Dimension 163.6 × 75.6 × 9.1 mm
(6.44 × 2.98 × 0.36 in)
7.9 mm thickness
(0.31 in thickness)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
Weight 195 g (6.88 oz) 172 g (6.07 oz) 185 g (6.53 oz)
SIM Type Hybrid Dual SIM (Nano-SIM, dual stand-by) 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
CDMA 800 & TD-SCDMA
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE (unspecified)
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor(In-display)
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

OS Android 9.0 (Pie) Android 9.0 (Pie) Android 10.0
User Interface ColorOS 6.1 ColorOS 6.1 One UI 2.0
Processor Octa-core(Quad 2GHz Kryo 260 + Quad 1.8GHz Kryo 260) , Qualcomm SDM665 Snapdragon 665 (11 nm) Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53), Mediatek MT6771V Helio P70 (12nm) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)
GPU Adreno 610 Mali-G72 MP3 Mali-G52 MC2
RAM 8 GB 8 GB 6 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSD, up to 256 GB microSD, up to 256 GB (dedicated slot) microSDXC

display Display

Type HD+ IPS Touchscreen, Corning Gorilla Glass 3+ protection Super AMOLED Capacitive Touchscreen Super AMOLED Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 6.5 inches 6.4 inches 6.4 inches
Resolution 720 x 1600 pixels (270 ppi) 1080 x 2340 pixels (403 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio - - 85.01%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 48 MP + 8 MP + 2 MP + 2 MP 48 MP + 8 MP + 2 MP + 2 MP 48 MP + 8 MP + 5 MP + 5 MP
Flash Dual-LED Flash LED flash LED flash
Features 48 MP, f/1.79, (wide), 1/2", 0.8µm, PDAF
8 MP, f/2.5, 13mm (ultrawide), 1.12µm
2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
2 MP, f/2.4, 1/5", 1.75µm, depth sensor
HDR, Panorana
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
2 MP, f/2.4, 1/5", 1.75µm, depth sensor
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
Video 2160p@30fps, 1080p@30/60/120fps, (gyro-EIS) 2160p@30fps 1080p@30fps
Front Camera 16 MP, f/2.0, HDR, 1080p@30fps [Similar] 16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm
HDR
1080p@30fps [Similar]
20 MP, f/2.2, 0.8µm
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 (3CA) Cat9 450/50 Mbps HSPA 42.2/11.5 Mbps, LTE-A HSPA, LTE-A
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE, aptX HD 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 2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 8 GB RAM or 64 GB, 6 GB RAM 128 GB, 8 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1)
Expandable Storage microSD, up to 256 GB microSD, up to 256 GB (dedicated slot) microSDXC
USB OTG Yes 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 present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 18W (Quick Charge 4)
Non-removable Li-Po Battery
Fast battery charging 30W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 4880 mAh 4000 mAh 5000 mAh
Stand by - - -
Talk Time - - -