Xiaomi Redmi Note 4X vs Google Pixel 4a vs Apple iPhone 12 mini

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

Display

Size:

5.5 inches
5.8 inches
5.4 inches

Resolution:

1920 x 1080 pixels, 401 PPI
2340 x 1080 pixels, 19.5:9 ratio, 444 PPI
2340 x 1080 pixels, 19.5:9 ratio, 477 PPI

Technology:

IPS LCD
OLED
OLED

Screen-to-body:

72.78 %
82.53 %
85.83 %

Colors:

16 777 216

Peak brightness:

1200 cd/m2 (nit)

Touchscreen:

Capacitive, Multi-touch

Features:

Ambient light sensor, Proximity sensor
60Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
60Hz refresh rate, HDR support, Oleophobic coating, Scratch-resistant glass (Ceramic Shield), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 625 8953
Qualcomm Snapdragon 730 SM7150-AA
Apple A14 Bionic

Processor:

Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm
Hexa-core, 3100 MHz, 64-bit, 5 nm

GPU:

Adreno 506
Adreno 618
Yes

RAM:

3GB DDR3
6GB LPDDR4
4GB

Internal storage:

32GB
128GB, not expandable
64GB (NVMe), not expandable

Storage expansion:

microSDXC up to 128 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (6.0 Marshmallow)
Android (11, 10)
iOS (14.x)

Battery

Capacity:

4100 mAh
3140 mAh
2227 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Li - Ion, Not user replaceable

Battery life test results:

Charging:

USB Power Delivery
USB Power Delivery, Qi wireless charging, MagSafe wireless charging

Max charge speed:

Wired: 18.0W
Wireless: 15.0W

Camera

Rear:

Single camera
Single camera
Dual camera

Main camera:

13 MP (CMOS image sensor, PDAF)
12.2 MP (OIS, PDAF)
12 MP (Sapphire crystal lens cover, OIS, PDAF)

Specifications:

Aperture size: F2.0
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.6; Focal length: 26 mm

Second camera:

12 MP (Ultra-wide, Sapphire crystal lens cover)

Specifications:

Aperture size: F2.4; Focal Length: 13 mm

Video recording:

1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD)

Features:

Video calling, Video sharing
EIS
OIS, Time-lapse video, Continuous autofocus, Picture-taking during video recording, Video light

Front:

5 MP
8 MP
12 MP (EIS, HDR, Slow-motion videos)

Video capture:

1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

5.94 x 2.99 x 0.33 inches (151 x 76 x 8.45 mm)
5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)
5.18 x 2.53 x 0.29 inches (131.5 x 64.2 x 7.4 mm)

Weight:

5.82 oz (165.0 g)
5.04 oz (143.0 g)
4.76 oz (135.0 g)

Materials:

Back: Metal
Back: Plastic; Frame: Plastic
Back: Glass; Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

Fingerprint (touch)
Fingerprint (touch)
3D Face unlock

Features:

Touch sensitive control keys

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Left: Volume control, Other; Right: Lock/Unlock key

Colors:

Black, Gold, Gray, Pink, Green
Just black
Black, White, Red, Green, Blue

Cellular

5G:

n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n71, n77, n78, n79, n260, n261, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600)
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)
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), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46, 48(3600)

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSPA
LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Shared with microSD
Yes
Yes

SIM type:

Nano SIM, Micro SIM
Nano SIM, eSIM
Nano SIM, eSIM

HD Voice:

Yes
Yes

VoLTE:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

Album art cover, Background playback
aptX, aptX-HD
Dolby Atmos

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
5.1
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; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible), USB 3.1
Lightning

Features:

Mass storage device, Charging
Charging
Charging, Headphones port

Location:

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning

Sensors:

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

Other:

Infrared, VoIP, Tethering, Computer sync, OTA sync
NFC
NFC, UMA (Wi-Fi Calling)

Hearing aid compatible:

M3, T4
M3, T4

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 link

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

Price:

$ 145
$ 349
$ 729

In The Box:

18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool
USB-C to Lightning Cable, Documentation

Availability

Officially announced:

Feb 08, 2017
Aug 03, 2020
Oct 13, 2020
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