Xiaomi Redmi Note 9 vs Xiaomi Redmi Note 8 2021 Specs Comparison

Availability

Officially announced
Apr 30, 2020	May 24, 2021

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,

Display

Size
6.5-inch, 83.52% screen-to-body	6.3-inch, 81.89% screen-to-body
Type
IPS LCD	IPS LCD, 60Hz
Resolution
2340x1080px, 19.5:9 ratio, 395 PPI	2340x1080px, 19.5:9 ratio, 409 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass 5

Hardware

System chip
MediaTek Helio G85 (12 nm)	MediaTek Helio G85 MT6769Z (12 nm)
Processor
Octa-core 2000 MHz Arm Cortex-A75 and ArmCortex-A55	Octa-core 2000 MHz Cortex-A75
GPU
Mali G52 MC2	Mali G52 MC2
Memory
3GB (LPDDR4)/64GB (eMMC 5.1) 4GB/128GB	4GB (LPDDR4)/64GB (eMMC 5.1) 4GB/128GB
Storage expansion
microSDXC up to 128 GB	microSDXC up to 128 GB
OS
Android (10)	Android (11)

Battery

Type
5020 mAh, Li - Polymer	4000 mAh, Li - Polymer
Charging
Fast charging Reverse wired charging	Fast charging
Charge speed
Wired: 18.0W	Wired: 18.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

10h 43min

Gaming

7h 34min

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm	48 MP (Autofocus) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.2 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
2 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.75 μm	2 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.75 μm
Fourth camera
2 MP Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.7 μm	2 MP (Depth information) Aperture size: F2.4 Pixel size: 1.75 μm
Flash
LED	LED
Video recording
1080p (30 fps), 720p (120 fps)	1080p (30 fps), 720p (120 fps)
Front
13 MP (HDR) Video capture: 1080p	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.2
WLAN
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Other
NFC, Infrared	Infrared

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD)
Bands 1, 2, 3, 4, 5, 7, 8, 20, 28	Bands 1, 2, 3, 4, 5, 7, 8, 20, 28
4G (TDD)
Bands 38, 40, 41	Bands 38, 40
3G
Bands 1, 2, 4, 5, 8	Bands 1, 2, 4, 5, 8
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	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes
VoLTE
Yes	Yes

Alternative variants

with 128GB storage

Memory	4GB/128GB

With 128GB internal stotrage

Memory	128GB

Links

Full specifications
Xiaomi Redmi Note 9 Specs	Xiaomi Redmi Note 8 2021 Specs
PhoneArena Review
Xiaomi Redmi Note 9 Review
User Reviews
Xiaomi Redmi Note 9 User Reviews