Xiaomi Redmi Note 9 vs Xiaomi Redmi Note 8 2021

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

Display

Size:

6.5 inches
6.3 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 395 PPI
2340 x 1080 pixels, 19.5:9 ratio, 409 PPI

Technology:

IPS LCD
IPS LCD

Screen-to-body:

83.52 %
81.89 %

Features:

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

MediaTek Helio G85
MediaTek Helio G85 MT6769Z

Processor:

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

GPU:

Mali G52 MC2
Mali G52 MC2

RAM:

3GB LPDDR4
4GB LPDDR4

Internal storage:

64GB (eMMC 5.1)
64GB (eMMC 5.1)

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 128 GB

Device type:

Smartphone
Smartphone

OS:

Android (10), Xiaomi MI UI
Android (11), MIUI 12.5 UI

Battery

Capacity:

5020 mAh
4000 mAh

Type:

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

Battery life test results:

Charging:

Fast charging, Reverse charging
Fast charging

Max charge speed:

Wired: 18.0W
Wired: 18.0W

Camera

Rear:

Quad camera
Quad camera

Main camera:

48 MP (PDAF)
48 MP (Autofocus)

Specifications:

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

Second camera:

8 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications:

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

Third camera:

2 MP (Macro, Autofocus)
2 MP (Macro, Autofocus)

Specifications:

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

Fourth camera:

2 MP
2 MP (Depth information)

Specifications:

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

Video recording:

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

Front:

13 MP (HDR)
13 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.39 x 3.04 x 0.35 inches (162.3 x 77.2 x 8.9 mm)
6.23 x 2.96 x 0.33 inches (158.3 x 75.3 x 8.35 mm)

Weight:

7.02 oz (199.0 g)
6.70 oz (190.0 g)

Materials:

Frame: Plastic
Back: Glass; Frame: Plastic

Resistance:

Splash

Biometrics:

Fingerprint (touch)
Fingerprint (touch)

Keys:

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

Colors:

Forest green, Polar white, Midnight gray
Neptune Blue, Moonlight White, Space Black,

Cellular

LTE (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), 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)

UMTS:

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

Data Speed:

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

Dual SIM:

Yes
Shared with microSD

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Screen mirroring:

Wireless screen share
Wireless screen share

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.2

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; 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
Charging, OTG

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

NFC, Infrared
Infrared

Buyers information

In The Box:

22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card
Adapter, USB Type-C cable, SIM Eject Tool, Protective Case, Quick Start Guide, Warranty Card

Availability

Officially announced:

Apr 30, 2020
May 24, 2021
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