Xiaomi Redmi 4X vs Google Pixel 4a Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

9.1
Google Pixel 4a
Xiaomi Redmi 4X Google Pixel 4a
4100 mAh
3140 mAh
5.0-inch · 1280x720px
5.8-inch · 2340x1080px
Single camera
Single camera
3GB · 32GB
6GB · 128GB
Released · Aug 20, 2020
Check prices

Design

Dimensions
5.48 x 2.75 x 0.34 inches
139.24 x 69.96 x 8.65 mm
5.67 x 2.73 x 0.32 inches
144 x 69.4 x 8.2 mm
Weight
5.15 oz (146.0 g) 5.04 oz (143.0 g)
Materials
Back: Aluminum Back: Plastic
Frame: Plastic
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 Just black

Display

Size
5.0-inch 5.8-inch
Resolution
1280x720px, 294 PPI 2340x1080px, 19.5:9 ratio, 444 PPI
Technology
IPS LCD OLED
Refresh rate
60Hz
Screen-to-body
70.89 % 82.53 %
Colors
16 777 216
Peak brightness
450 cd/m2 (nit)
Features
Scratch-resistant glass (Corning Gorilla Glass), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 435 8940 (28 nm) Qualcomm Snapdragon 730G SM7150-AA (8 nm)
Processor
Octa-core
1400 MHz
ARM Cortex-A53
Octa-core
2200 MHz
Kryo 470
GPU
Adreno 505 Adreno 618
RAM
3GB (LPDDR3) 6GB (LPDDR4)
Internal storage
32GB 128GB (UFS 2.1)
Storage expansion
microSDXC up to 128 GB not expandable
OS
Android (6.0 Marshmallow) Android (12, 11, 10)

Battery

Capacity
4100 mAh 3140 mAh
Type
Li - Polymer
Charging
USB Power Delivery
Charge speed
Wired: 18.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
4h 15min
Browsing
9h 27min
Video
6h 48min
Gaming
4h 51min

Camera

Rear
Single camera Single camera
Main camera
13 MP (PDAF)
Aperture size: F2.0
12.2 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 27 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Flash
LED LED
Video recording
1920x1080 (Full HD) (30 fps)
Video calling, Video sharing
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
EIS
Front
5 MP, Video capture: 1280x720 (HD) (30 fps) 8 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2 5.1
WLAN
802.11 b,g,n,dual-band
Hotspot, Wi-Fi Direct
802.11 a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0 Type-C, USB 3.1
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, BeiDou GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope Accelerometer, Gyroscope, Compass, Barometer
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
Album art cover, Background playback aptX, aptX-HD
Screen mirroring
Wireless screen share Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 7 (300/100 Mbit/s), HSPA LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM, Micro SIM Nano SIM, eSIM

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Jun 25, 2020
FCC ID value: A4RG025J
Measured SAR
Head: 1.18 W/kg
Body: 1.19 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.00 W/kg

Buyers information

MSRP
$ 349
In The Box
power adapter, USB cable, warranty card, user guide, SIM insertion tool 18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool

Availability

Officially announced
Feb 28, 2017 Aug 03, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless