Xiaomi Redmi Note 4 vs Xiaomi Redmi Note 9 Specs Comparison

Availability

Officially announced
Jan 19, 2017	Apr 30, 2020
Prices (MSRP)
$190

Design

Dimensions
5.94 x 2.99 x 0.33 inches 151 x 76 x 8.45 mm	6.39 x 3.04 x 0.35 inches 162.3 x 77.2 x 8.9 mm
Weight
5.82 oz (165.0 g)	7.02 oz (199.0 g)
Materials
Back: Aluminum	Frame: Plastic
Resistance
	Splash
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Features
Touch sensitive control keys, Soft keys
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Gray, Blue, White	Forest green, Polar white, Midnight gray

Display

Size
5.5-inch, 72.78% screen-to-body	6.5-inch, 83.52% screen-to-body
Type
IPS LCD, 450 nits	IPS LCD
Resolution
1920x1080px, 401 PPI	2340x1080px, 19.5:9 ratio, 395 PPI
Colors
16 777 216
Protection
	Corning Gorilla Glass 5

Hardware

System chip
Snapdragon 625 8953	MediaTek Helio G85 (12 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core 2000 MHz Arm Cortex-A75 and ArmCortex-A55
GPU
Adreno 506	Mali G52 MC2
Memory
4GB (LPDDR3)/64GB 2GB/32GB 3GB/32GB	3GB (LPDDR4)/64GB (eMMC 5.1) 4GB/128GB
Storage expansion
microSDXC up to 128 GB	microSDXC up to 128 GB
OS
Android (7.0 Nougat, 6.0 Marshmallow)	Android (10)

Battery

Type
4100 mAh, Li - Polymer	5020 mAh, Li - Polymer
Charging
	Fast charging Reverse wired charging
Charge speed
	Wired: 18.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

10h 43min

Gaming

7h 34min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (CMOS image sensor, BSI sensor, PDAF) Aperture size: F2.0 Pixel size: 1.12 μm	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 Sensor size: 1/4" Pixel size: 1.2 μm
Third camera
	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
Flash
Dual LED	LED
Video recording
1080p (30 fps), 720p (120 fps) Video calling, Video sharing	1080p (30 fps), 720p (120 fps)
Front
5 MP Video capture: 1080p	13 MP (HDR) Video capture: 1080p

Connectivity & Features

Bluetooth
4.1	5.0
WLAN
a,b,g,n,dual-band Hotspot, Wi-Fi Direct 802.11 a, b, g, n	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Hall (for flip covers), Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
Infrared, Tethering, Computer sync, OTA sync	NFC, 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

Cellular

4G (FDD) Bands
3, 5	1, 2, 3, 4, 5, 7, 8, 20, 28
4G (TDD) Bands
40	38, 40, 41
3G Bands
5, 8, 2, 1	1, 2, 4, 5, 8
Data Speed
LTE-A, HSPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM, Micro SIM	Nano SIM
VoLTE
Yes	Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Alternative variants

Memory	2GB/32GB
Prices (MSRP)	$146

with 128GB storage

Memory	4GB/128GB

Memory	3GB/32GB
Prices (MSRP)	$161

Links

Full specifications
Xiaomi Redmi Note 4 Specs	Xiaomi Redmi Note 9 Specs
PhoneArena Review
	Xiaomi Redmi Note 9 Review
User Reviews
Xiaomi Redmi Note 4 User Reviews	Xiaomi Redmi Note 9 User Reviews