Xiaomi Redmi Note 4X vs OPPO A9 (2020) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Xiaomi Redmi Note 4X OPPO A9 (2020)
Released · Feb 14, 2017
Released · Sep 11, 2019
5.5-inch · 1920x1080px
6.5-inch · 720x1600px
Single camera
Quad camera
3GB · 32GB
4GB · 128GB
4100 mAh
5000 mAh
Check prices

Availability

Officially announced
Feb 08, 2017
Prices (MSRP)
$145

Design

Dimensions
5.94 x 2.99 x 0.33 inches
151 x 76 x 8.45 mm
6.44 x 2.98 x 0.36 inches
163.6 x 75.6 x 9.1 mm
Weight
5.82 oz / 165.0 g 6.88 oz / 195.0 g
Materials
Back: Metal Back: Plastic
Frame: Plastic
Biometrics
Fingerprint (touch) 2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Right: Volume control, Lock/Unlock key Left: Volume control; Right: Lock/Unlock key
Colors
Black, Gold, Gray, Pink, Green Space purple, Marine green, Vanilla mint

Display

Size
5.5-inch, 72.78% screen-to-body 6.5-inch, 82.39% screen-to-body
Type
IPS LCD IPS LCD
Resolution
1920x1080px, 401 PPI 720x1600px, 20:9 ratio, 270 PPI
Colors
16 777 216
Protection
Corning Gorilla Glass 3

Hardware

System chip
Snapdragon 625 8953 (14 nm) Snapdragon 665 SM6125 (11 nm)
Processor
Octa-core
2000 MHz
ARM Cortex-A53
Octa-core
2000 MHz
Kryo 260
GPU
Adreno 506 Adreno 610
Memory
3GB (DDR3)/32GB
3GB/16GB
4GB/64GB
4GB (LPDDR4)/128GB
8GB/128GB
Storage expansion
microSDXC up to 128 GB microSDXC up to 256 GB
OS
Android (6.0 Marshmallow) Android (10, 9.0 Pie)

Battery

Type
4100 mAh, Li - Polymer 5000 mAh, Li - Polymer
Charging
Reverse wired charging

Camera

Rear
Single camera Quad camera
Main camera
13 MP (CMOS image sensor, PDAF)
Aperture size: F2.0
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2.3"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide, Autofocus)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
2 MP
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.75 μm
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.75 μm
Flash
Dual LED LED
Video recording
1080p (30 fps), 720p (120 fps)
Video calling, Video sharing
4K UHD (30 fps), 1080p (30 fps)
Time-lapse video, EIS
Front
5 MP 16 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
4.2 5.0
WLAN
a,b,g,n,dual-band
Hotspot, Wi-Fi Direct
802.11 a, b, g, n
b,g,n
Wi-Fi Direct, Hotspot
802.11 b, g, n
USB
microUSB, USB 2.0 Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Hall (for flip covers), Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
Album art cover, Background playback Dolby Atmos
Screen mirroring
Wireless screen share Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 7 1, 3, 5, 7, 8, 20, 28
4G (TDD) Bands
38, 39, 40, 41 38, 40, 41
3G Bands
5, 8, 2, 1 5, 8, 1
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM, Micro SIM Nano SIM
HD Voice
Yes
VoLTE
Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Alternative variants

Memory 16GB
with 8GB RAM
Memory 8GB
System chip MediaTek Helio X20 MT6797 (20 nm)
Processor Deca-core
2100 MHz
ARM Cortex-A72 and ARM Cortex-A53
GPU Mali-T880 MP4
Memory 4GB/64GB
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