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

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

Display

Size:

5.5 inches
6.7 inches

Resolution:

1920 x 1080 pixels, 401 PPI
2400 x 1080 pixels, 20:9 ratio, 395 PPI

Technology:

IPS LCD
IPS LCD

Screen-to-body:

72.78 %
84.42 %

Colors:

16 777 216

Features:

Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 625 8953 (14 nm)
Qualcomm Snapdragon 720G SM7125 (8 nm)

Processor:

Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit
Octa-core, 2300 MHz, Kryo 465, 64-bit

GPU:

Adreno 506
Adreno 618

RAM:

3GB DDR3
4GB LPDDR4

Internal storage:

32GB
64GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (6.0 Marshmallow)
Android (11, 10)

Battery

Capacity:

4100 mAh
5020 mAh

Type:

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

Charging:

Fast charging

Camera

Rear:

Single camera
Quad camera

Main camera:

13 MP (CMOS image sensor, PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F2.0
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Pixel size: 1.12 μm

Third camera:

5 MP (Macro, Autofocus)

Specifications:

Aperture size: F2.4; Pixel size: 1.12 μm

Fourth camera:

2 MP (Depth information)

Specifications:

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

Flash:

Dual LED
Dual LED

Video recording:

1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)

Features:

Video calling, Video sharing

Front:

5 MP
16 MP (HDR, Slow-motion videos)

Video capture:

1920x1080 (Full HD)

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

Cellular

4G (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600)

4G (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 40(2300)

3G:

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

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:

Shared with microSD
Yes

SIM type:

Nano SIM, Micro SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes
Yes

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):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
5.0

Wi-Fi:

802.11 a, b, g, n, dual-band; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible)

Features:

Mass storage device, Charging
Charging

Location:

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

Sensors:

Accelerometer, Gyroscope, Hall (for flip covers)
Accelerometer, Gyroscope, Compass

Other:

Infrared, VoIP, Tethering, Computer sync, OTA sync
Infrared

Phone features

Notifications:

Haptic feedback

Other features:

Voice dialing, Voice commands, Voice recording

Buyers information

Price:

$ 145
$ 249

In The Box:

22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced:

Feb 08, 2017
Mar 23, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless