OPPO A83 vs Xiaomi Redmi Note 9S Specs Comparison

Design

Dimensions
5.93 x 2.88 x 0.30 inches 150.5 x 73.1 x 7.7 mm	6.53 x 3.02 x 0.35 inches 165.75 x 76.68 x 8.8 mm
Weight
5.04 oz (143.0 g)	7.37 oz (209.0 g)
Materials
Back: Aluminum	Back: Glass (Corning Gorilla Glass 5)
Biometrics
2D Face unlock	Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold	Interstellar grey, Aurora blue, Glacier white

Display

Size
5.7-inch	6.7-inch
Resolution
1440x720px, 282 PPI	2400x1080px, 20:9 ratio, 395 PPI
Technology
IPS LCD	IPS LCD
Screen-to-body
76.10 %	84.42 %
Features
Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
MediaTek Helio P23 MT6763T (16 nm)	Qualcomm Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core 2500 MHz ARM Cortex-A53	Octa-core 2300 MHz Kryo 465
GPU
Mali-G71 MP2	Adreno 618
RAM
3GB (LPDDR4)	4GB (LPDDR4)
Internal storage
32GB	64GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (7.1 Nougat), OPPO ColorOS UI	Android (11, 10)

Battery

Capacity
3180 mAh	5020 mAh
Type
Li - Ion	Li - Polymer
Charging
	Fast charging

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (Autofocus) Aperture size: F2.2	48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Pixel size: 1.12 μm
Third camera
	5 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.12 μm
Fourth camera
	2 MP (Depth information) Aperture size: F2.4 Pixel size: 1.75 μm
Flash
LED	Dual LED
Video recording
1920x1080 (Full HD) (30 fps) Video calling, Video sharing	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)
Front
8 MP	16 MP (HDR, Slow-motion videos), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 a,b,g,n,dual-band Wi-Fi Direct	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0	Type-C
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Compass	Accelerometer, Gyroscope, Compass
Other
VoIP, Tethering, Computer sync, OTA sync	Infrared

Multimedia

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

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 5(850), 8(900)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 40(2300)
3G
Bands 5(850), 8(900), 1(2100)	Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed
LTE, HSPA, HSUPA	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

Regulatory Approval

Measured SAR
Head: 1.38 W/kg Body: 0.71 W/kg

Buyers information

MSRP
$ 218	$ 249
In The Box
Earphones, microUSB cable, charger, SIM ejector tool, Documentation, case	22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
	Mar 23, 2020

Alternative variants

with 128GB storage

RAM	6GB
Internal storage	128GB
MSRP	$ 279

Links

Full specifications
OPPO A83 Specs	Xiaomi Redmi Note 9S Specs