OPPO A9 (2020) vs Xiaomi Redmi Note 9

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Display

Size

6.5 inches
6.5 inches

Resolution

720 x 1600 pixels, 20:9 ratio,
270 PPI
2340 x 1080 pixels, 19.5:9 ratio,
395 PPI

Technology

IPS LCD
IPS LCD

Screen-to-body

82.39 %
83.52 %

Features

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip

Qualcomm Snapdragon 665 SM6125
MediaTek Helio G85

Processor

Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm

GPU

Adreno 610
Mali G52 MC2

RAM

4GB LPDDR4
3GB LPDDR4

Internal storage

128GB
64GB (eMMC 5.1)

Storage expansion

microSDXC up to 256 GB
microSDXC up to 128 GB

OS

Android (10, 9.0 Pie), OPPO ColorOS UI
Android (10), Xiaomi MI UI

Battery

Capacity

5000 mAh
5020 mAh

Type

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

 

Charging

Reverse charging
Fast charging, Reverse charging

Max charge speed

 
Wired: 18.0W

Camera

Rear

Quad camera
Quad camera

Main camera

48 MP (PDAF)
48 MP (PDAF)

Specifications

Aperture size: F1.8; Sensor size: 1/2.3"; Pixel size: 0.8 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

8 MP (Ultra-wide, Autofocus)
8 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.2 μm

Third camera

2 MP
2 MP (Macro, Autofocus)

Specifications

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera

2 MP (Depth information)
2 MP

Specifications

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.7 μm

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)

Features

Time-lapse video, EIS
 

Front

16 MP
13 MP (HDR)

Design

Dimensions

6.44 x 2.98 x 0.36 inches (163.6 x 75.6 x 9.1 mm)
6.39 x 3.04 x 0.35 inches (162.3 x 77.2 x 8.9 mm)

Weight

6.88 oz (195.0 g)
the average is 6.2 oz (178 g)
7.02 oz (199.0 g)
the average is 6.2 oz (178 g)

Materials

Back: Plastic; Frame: Plastic
Frame: Plastic

Resistance

 
Splash

Biometrics

2D Face unlock, Fingerprint (touch)
Fingerprint (touch)

Colors

Space purple, Marine green, Vanilla mint
Forest green, Polar white, Midnight gray

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

850, 900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

VoLTE

 
Yes

Multimedia

Headphones

 
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

Dolby Atmos
 

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

 
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 b, g, n; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features

Charging, OTG
Charging

Location

GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other

 
NFC, Infrared

Buyers information

In The Box

Adapter, Headset, Micro USB Cable, Booklet with Warranty Card, Quick Start Guide, SIM Card Tool, Protective Film (pre-applied), Case
22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card
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