Xiaomi Redmi Note 4X vs Xiaomi Redmi Note 9S Specs Comparison

Availability

Officially announced
Feb 08, 2017	Mar 23, 2020
Prices (MSRP)
$145	$249

Design

Dimensions
5.94 x 2.99 x 0.33 inches 151 x 76 x 8.45 mm	6.53 x 3.02 x 0.35 inches 165.75 x 76.68 x 8.8 mm
Weight
5.82 oz / 165.0 g	7.37 oz / 209.0 g
Materials
Back: Metal	Back: Glass (Corning Gorilla Glass 5)
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Gray, Pink, Green	Interstellar grey, Aurora blue, Glacier white

Display

Size
5.5-inch, 72.78% screen-to-body	6.7-inch, 84.42% screen-to-body
Type
IPS LCD	IPS LCD, HDR
Resolution
1920x1080px, 401 PPI	2400x1080px, 20:9 ratio, 395 PPI
Colors
16 777 216
Protection
	Corning Gorilla Glass 5

Hardware

System chip
Snapdragon 625 8953 (14 nm)	Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core 2300 MHz Kryo 465
GPU
Adreno 506	Adreno 618
Memory
3GB (DDR3)/32GB 3GB/16GB 4GB/64GB	4GB (LPDDR4)/64GB 6GB/128GB
Storage expansion
microSDXC up to 128 GB	microSDXC up to 512 GB
OS
Android (6.0 Marshmallow)	Android (11, 10)

Battery

Type
4100 mAh, Li - Polymer	5020 mAh, Li - Polymer
Charging
	Fast charging

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (CMOS image sensor, PDAF) Aperture size: F2.0	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 Pixel size: 1.12 μm
Third camera
	5 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.12 μm
Fourth camera
	2 MP (Depth information) Aperture size: F2.4 Pixel size: 1.75 μm
Flash
Dual LED	Dual LED
Video recording
1080p (30 fps), 720p (120 fps) Video calling, Video sharing	4K UHD (30 fps), 1080p (120 fps), 720p (960 fps)
Front
5 MP	16 MP (HDR, Slow-motion videos) Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	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
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, VoIP, Tethering, Computer sync, OTA sync	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	Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 7
4G (TDD) Bands
38, 39, 40, 41	38, 40
3G Bands
5, 8, 2, 1	5, 8, 4, 2, 1
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), 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
HD Voice
Yes
VoLTE
Yes	Yes

Phone Features

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

Alternative variants

Memory	16GB

with 128GB storage

Memory	6GB/128GB
Prices (MSRP)	$279

System chip	MediaTek Helio X20 MT6797 (20 nm)
Processor	Deca-core 2100 MHz ARM Cortex-A72 and ARM Cortex-A53
GPU	Mali-T880 MP4
Memory	4GB/64GB

Links

Full specifications
Xiaomi Redmi Note 4X Specs	Xiaomi Redmi Note 9S Specs