Xiaomi Redmi 4X vs Xiaomi Mi A2

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Display

Display size

5.0 inches
6.0 inches

Resolution

720 x 1280 pixels
1080 x 2160 pixels

Pixel density

294 ppi
403 ppi

Technology

IPS LCD
IPS LCD

Screen-to-body

70.89 %
77.32 %

Features

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

Hardware & Performance

System chip

Qualcomm Snapdragon 435 8940
Qualcomm Snapdragon 660 SDM660

Processor

Octa-core, 1400 MHz, ARM Cortex-A53, 64-bit, 28 nm
Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm

GPU

Adreno 505
Adreno 512

RAM

3 GB
6 GB

Internal storage

32 GB
128 GB

Storage expansion

microSDXC up to 128 GB
 

OS

Android (6.0 Marshmallow)
Android (8.1 Oreo)

Battery

Capacity

4100 mAh
3010 mAh

Type

Not user replaceable
Li - Polymer, Not user replaceable

Charging

 
Qualcomm Quick Charge 3.0

Camera

Rear

Single camera
Dual camera

Main camera

13 megapixels
12 megapixels

Features

Phase detection autofocus
Phase detection autofocus

Second camera

 
20 megapixels

Video recording

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

Features

Video calling, Video sharing
Video calling, Video sharing

Front

5 megapixels
20 megapixels

Features

 
Flash, 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)
6.25 x 2.97 x 0.29 inches (158.7 x 75.4 x 7.3 mm)

Weight

5.15 oz (146 g)
the average is 6.1 oz (176 g)
5.93 oz (168 g)
the average is 6.1 oz (176 g)

Materials

Back: Aluminum
Back: Aluminum

Biometrics

Fingerprint (touch)
Fingerprint (touch)

Features

Touch sensitive control keys
 

Colors

Black, Gold
Black, Gold, Pink, Blue, Red

Cellular

LTE (FDD)

 
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)

LTE (TDD)

 
Bands 38(2600), 40(2300)

UMTS

 
850, 900, 1800, 1900 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

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
Charging, Headphones port, Mass storage device

Sensors

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

Other

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

Phone features

Notifications

Haptic feedback
 

Other features

Voice dialing, Voice commands, Voice recording
 

Shopping information

In The Box

power adapter, USB cable, warranty card, user guide, SIM insertion tool
Power adapter, USB cable, SIM eject too, Type-C to Audio adapter, User guide, Clear soft case
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