Xiaomi Redmi Note 4X vs Xiaomi Mi 9 SE

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Display

Display size

5.5 inches
6.0 inches

Resolution

1080 x 1920 pixels
1080 x 2340 pixels

Pixel density

401 ppi
432 ppi

Technology

IPS LCD
AMOLED

Screen-to-body ratio

72.78 %
83.96 %

Features

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

Camera

Rear

Single camera
Triple camera

Main camera

13 megapixels
48 megapixels

Hardware Features

CMOS image sensor, Phase detection autofocus
Phase detection autofocus

Specifications

Aperture size: F2.0
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

 
13 megapixels

Hardware Features

 
Ultra-wide, Phase detection autofocus

Specifications

 
Aperture size: F2.4; Sensor size: 1/3.06"; Pixel size: 1.12 μm

Third camera

 
8 megapixels

Hardware Features

 
Telephoto, Autofocus

Specifications

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

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
Digital image stabilization, Video calling, Video sharing

Front

5 megapixels
20 megapixels

Features

 
High Dynamic Range mode (HDR)

Design

Dimensions

5.94 x 2.99 x 0.33 inches (151 x 76 x 8.45 mm)
5.81 x 2.78 x 0.29 inches (147.5 x 70.5 x 7.45 mm)

Weight

5.82 oz (165 g)
the average is 6.1 oz (174 g)
5.47 oz (155 g)
the average is 6.1 oz (174 g)

Materials

Back: Metal
 

Biometrics

Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Features

Touch sensitive control keys
 

Colors

Black, Gold, Gray, Pink, Green
Black, Purple, Blue

Multimedia

Headphones

3.5 mm jack
USB Type-C (reversible)

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
Album art cover, Background playback

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

for Noise cancellation
 

Hardware & Performance

System chip

Qualcomm Snapdragon 625 8953
Qualcomm Snapdragon 712 SDM712

Processor

Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, Kryo 360, 64-bit, 10 nm

GPU

Adreno 506
Adreno 616

RAM

3 GB
6 GB

Internal storage

32 GB
128 GB

Storage expansion

microSDXC up to 128 GB
 

OS

Android (6.0 Marshmallow)
Android (9.0 Pie)

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
USB Type-C (reversible), USB 2.0

Features

Mass storage device, USB charging
Mass storage device

Location

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou

Sensors

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

Other

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

Cellular

LTE (FDD)

Bands 1, 3, 5, 7
Bands 1, 3, 5, 7, 8

LTE (TDD)

Bands 38, 39, 40, 41
Bands 34, 38, 39, 40, 41

UMTS

850, 900, 1900, 2100 MHz
850, 900, 1900, 2100 MHz

Data

LTE-A Cat 6 (300/50 Mbit/s), HSPA
LTE-A, HSPA, HSUPA

Dual SIM

Yes
Yes

SIM type

Nano SIM, Micro SIM
Nano SIM

HD Voice

Yes
 

VoLTE

Yes
Yes

Battery

Capacity

4100 mAh
3070 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Talk time

51.00 hours
the average is 20 h (1174 min)
 

Stand-by time (4G)

11.0 days (264 hours)
the average is 24 days (583 h)
 

Music playback

162.00 hours
 

Video playback

18.00 hours
 

Phone features

Notifications

Haptic feedback
Haptic feedback, Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Shopping information

MSRP price

$ 145
 
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