Xiaomi Redmi 4X vs Xiaomi Mi 9 SE

$125.00 VIEW ON eBay
$305.99 VIEW ON eBay

Display

Size

5.0 inches
6.0 inches

Resolution

720 x 1280 pixels
1080 x 2340 pixels

Pixel density

294 PPI
432 PPI

Technology

IPS LCD
AMOLED

Screen-to-body

70.89 %
83.96 %

Features

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

Hardware & Performance

System chip

Qualcomm Snapdragon 435 8940
Qualcomm Snapdragon 712 SDM712

Processor

Octa-core, 1400 MHz, ARM Cortex-A53, 64-bit, 28 nm
Octa-core, 2300 MHz, Kryo 360, 64-bit, 10 nm

GPU

Adreno 505
Adreno 616

RAM

3GB
6GB

Internal storage

32GB
128GB

Storage expansion

microSDXC up to 128 GB
 

OS

Android (6.0 Marshmallow)
Android (9.0 Pie)

Battery

Capacity

4100 mAh
3070 mAh

Type

Not user replaceable
Not user replaceable

Camera

Rear

Single camera
Triple camera

Main camera

13 megapixels
48 megapixels

Features

Phase-detection autofocus
Phase-detection autofocus

Second camera

 
13 megapixels

Features

 
Ultra-wide, Phase-detection autofocus

Third camera

 
8 megapixels

Features

 
Telephoto, Autofocus

Video recording

1920x1080 (Full HD) (30 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

5.48 x 2.75 x 0.34 inches (139.24 x 69.96 x 8.65 mm)
5.81 x 2.78 x 0.29 inches (147.5 x 70.5 x 7.45 mm)

Weight

5.15 oz (146 g)
the average is 6.2 oz (177 g)
5.47 oz (155 g)
the average is 6.2 oz (177 g)

Materials

Back: Aluminum
 

Biometrics

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

Features

Touch sensitive control keys
 

Colors

Black, Gold
Black, Purple, Blue

Cellular

LTE (FDD)

 
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900)

LTE (TDD)

 
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS

 
850, 900, 1900, 2100 MHz

Data Speed

LTE-A Cat 7 (300/100 Mbit/s), HSPA
LTE-A, HSPA, HSUPA

Dual SIM

Yes
Yes

SIM type

Nano SIM, Micro SIM
Nano SIM

VoLTE

 
Yes

Multimedia

Headphones

3.5mm jack
No 3.5mm jack

Features

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

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

802.11 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), USB 2.0

Features

Mass storage device, Charging
Mass storage device, Charging, Headphones port

Sensors

Accelerometer, Gyroscope
Accelerometer, Gyroscope, Compass

Other

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

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

In The Box

power adapter, USB cable, warranty card, user guide, SIM insertion tool
 
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