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Xiaomi Redmi Note 8 2021 vs Xiaomi Redmi 9

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

Display

Size:

6.3 inches
6.5 inches

Resolution:

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

Technology:

IPS LCD
IPS LCD

Refresh rate:

60Hz

Screen-to-body:

81.89 %
83.27 %

Features:

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

Hardware

System chip:

MediaTek Helio G85 MT6769Z (12 nm)
MediaTek Helio G80 (12 nm)

Processor:

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

GPU:

Mali G52 MC2
Mali G52 MC2

RAM:

4GB LPDDR4
3GB LPDDR4

Internal storage:

64GB (eMMC 5.1)
32GB (eMMC 5.1)

Storage expansion:

microSDXC up to 128 GB
microSDXC

Device type:

Smartphone
Smartphone

OS:

Android (11), MIUI 12.5 UI
Android

Battery

Capacity:

4000 mAh
5020 mAh

Type:

Li - Polymer, Not user replaceable
Not user replaceable

Battery life test results:

Charging:

Fast charging
Qualcomm Quick Charge 3.0

Max charge speed:

Wired: 18.0W
Wired: 18.0W

Camera

Rear:

Quad camera
Quad camera

Main camera:

48 MP (Autofocus)
13 MP (PDAF)

Specifications:

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

Second camera:

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

Specifications:

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

Third camera:

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

Specifications:

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

Fourth camera:

2 MP (Depth information)
2 MP (Depth information)

Specifications:

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

Video recording:

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

Front:

13 MP
8 MP (HDR)

Video capture:

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

Design

Dimensions:

6.23 x 2.96 x 0.33 inches (158.3 x 75.3 x 8.35 mm)
6.43 x 3.03 x 0.36 inches (163.32 x 77.01 x 9.1 mm)

Weight:

6.70 oz (190.0 g)
6.98 oz (198.0 g)

Materials:

Back: Glass; Frame: Plastic

Biometrics:

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

Keys:

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

Colors:

Neptune Blue, Moonlight White, Space Black,
Carbon gray, Sunset purple, Ocean green

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

UMTS:

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

Data Speed:

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

Dual SIM:

Shared with microSD
Yes

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes
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

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.2
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 b, g, n; 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, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

Infrared
NFC, Infrared

Buyers information

In The Box:

Adapter, USB Type-C cable, SIM Eject Tool, Protective Case, Quick Start Guide, Warranty Card
10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide

Availability

Officially announced:

May 24, 2021
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