Xiaomi Redmi Note 8 2021 vs OPPO A83 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.3 inches
5.7 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 409 PPI
1440 x 720 pixels, 282 PPI

Technology:

IPS LCD
IPS LCD

Refresh rate:

60Hz

Screen-to-body:

81.89 %
76.10 %

Features:

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

Hardware

System chip:

MediaTek Helio G85 MT6769Z (12 nm)
MediaTek Helio P23 MT6763T (16 nm)

Processor:

Octa-core, 2000 MHz, Cortex-A75, 64-bit
Octa-core, 2500 MHz, ARM Cortex-A53, 64-bit

GPU:

Mali G52 MC2
Mali-G71 MP2

RAM:

4GB LPDDR4
3GB LPDDR4

Internal storage:

64GB (eMMC 5.1)
32GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone

OS:

Android (11), MIUI 12.5 UI
Android (7.1 Nougat), OPPO ColorOS UI

Battery

Capacity:

4000 mAh
3180 mAh

Type:

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

Charging:

Fast charging

Max charge speed:

Wired: 18.0W

Camera

Rear:

Quad camera
Single camera

Main camera:

48 MP (Autofocus)
13 MP (Autofocus)

Specifications:

Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.2

Second camera:

8 MP (Ultra-wide)

Specifications:

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

Third camera:

2 MP (Macro, Autofocus)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm

Flash:

LED
LED

Video recording:

1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video calling, Video sharing

Front:

13 MP
8 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.23 x 2.96 x 0.33 inches (158.3 x 75.3 x 8.35 mm)
5.93 x 2.88 x 0.30 inches (150.5 x 73.1 x 7.7 mm)

Weight:

6.70 oz (190.0 g)
5.04 oz (143.0 g)

Materials:

Back: Glass; Frame: Plastic
Back: Aluminum

Biometrics:

Fingerprint (touch)
2D Face unlock

Keys:

Right: Volume control, Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key

Colors:

Neptune Blue, Moonlight White, Space Black,
Black, Gold

Cellular

4G (FDD):

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

4G (TDD):

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

3G:

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 5(850), 8(900), 1(2100)

Data Speed:

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

Dual SIM:

Shared with microSD
Yes

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

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):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.2
4.2

Wi-Fi:

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

USB:

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

Features:

Charging, OTG
Mass storage device, OTG, Charging

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Compass

Other:

Infrared
VoIP, Tethering, Computer sync, OTA sync

Regulatory Approval

Measured SAR:

Head:

1.38 W/kg

Body:

0.71 W/kg

Buyers information

Price:

$ 218

In The Box:

Adapter, USB Type-C cable, SIM Eject Tool, Protective Case, Quick Start Guide, Warranty Card
Earphones, microUSB cable, charger, SIM ejector tool, Documentation, case

Availability

Officially announced:

May 24, 2021
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