Xiaomi Redmi 4X vs Xiaomi Mi A2 Specs Comparison

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

Display

Size:

5.0 inches
6.0 inches

Resolution:

1280 x 720 pixels, 294 PPI
2160 x 1080 pixels, 18:9 ratio, 403 PPI

Technology:

IPS LCD
IPS LCD

Screen-to-body:

70.89 %
77.32 %

Colors:

16 777 216

Peak brightness:

450 cd/m2 (nit)

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

System chip:

Qualcomm Snapdragon 435 8940 (28 nm)
Qualcomm Snapdragon 660 SDM660 (14 nm)

Processor:

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

GPU:

Adreno 505
Adreno 512

RAM:

3GB LPDDR3
6GB LPDDR4

Internal storage:

32GB
128GB

Storage expansion:

microSDXC up to 128 GB

Device type:

Smartphone
Smartphone

OS:

Android (6.0 Marshmallow)
Android (10, 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 MP (PDAF)
12 MP (PDAF)

Specifications:

Aperture size: F2.0
Aperture size: F1.8; Sensor size: 1/2.9"; Pixel size: 1.25 μm

Second camera:

20 MP

Specifications:

Aperture size: F1.8; Sensor size: 1/2.8"; Pixel size: 1 μm

Flash:

LED
LED

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 MP
20 MP (Flash, HDR)

Video capture:

1280x720 (HD) (30 fps)
1920x1080 (Full HD)

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 (146.0 g)
5.93 oz (168.0 g)

Materials:

Back: Aluminum
Back: Aluminum

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
Black, Gold, Pink, Blue, Red

Cellular

4G (FDD):

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

4G (TDD):

Bands 38(2600), 40(2300)

3G:

Bands 5(850), 8(900), 3(1800), 2(1900)

Data Speed:

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

Dual SIM:

Shared with microSD
Yes

SIM type:

Nano SIM, Micro SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

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

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

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

Location:

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

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

Buyers 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

Availability

Officially announced:

Feb 28, 2017
Jul 24, 2018
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