Xiaomi Mi 9 vs Google Pixel 4a

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from $290
from $350

Display

Size

6.4 inches
5.8 inches

Resolution

2340 x 1080 pixels, 19.5:9 ratio,
403 PPI
2340 x 1080 pixels, 19.5:9 ratio,
444 PPI

Technology

AMOLED
OLED

Screen-to-body

85.23 %
82.53 %

Peak brightness

600 cd/m2 (nit)
 

Features

HDR video support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip

Qualcomm Snapdragon 855
Qualcomm Snapdragon 730 SM7150-AA

Processor

Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm
Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm

GPU

Adreno 640
Adreno 618

RAM

6GB LPDDR4
6GB LPDDR4

Internal storage

128GB, not expandable
128GB, not expandable

Device type

Smartphone
Smartphone

OS

Android (9.0 Pie), Xiaomi MI UI
Android (11, 10)

Battery

Capacity

3300 mAh
3140 mAh

Type

Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

 

Charging

Qualcomm Quick Charge 4+, Qi wireless charging
USB Power Delivery

Max charge speed

 
Wired: 18.0W

Camera

Rear

Triple camera
Single camera

Main camera

48 MP (Sapphire crystal lens cover, Laser and PDAF, CMOS image sensor)
12.2 MP (OIS, PDAF)

Specifications

Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Second camera

12 MP (Telephoto, Sapphire crystal lens cover, PDAF)
 

Specifications

Optical zoom: 2x; Aperture size: F2.2; Focal Length: 50 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
 

Third camera

16 MP (Ultra-wide, Sapphire crystal lens cover, PDAF)
 

Specifications

Aperture size: F2.2; Focal Length: 17 mm; Sensor size: 1/3"; Pixel size: 1 μm
 

Video recording

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features

Continuous autofocus, EIS, Video calling, Video sharing
EIS

Front

20 MP (HDR)
8 MP

Design

Dimensions

6.20 x 2.94 x 0.30 inches (157.5 x 74.67 x 7.61 mm)
5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)

Weight

6.10 oz (173.0 g)
the average is 6.3 oz (179 g)
5.04 oz (143.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Glass (Corning Gorilla Glass 5); Frame: Metal
Back: Plastic; Frame: Plastic

Biometrics

In-screen fingerprint
Fingerprint (touch)

Keys

 
Right: Volume control, Lock/Unlock key

Colors

Black, Purple, Blue
Just black

Cellular

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 28(700 APT)
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)

LTE (TDD)

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

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A, HSPA, HSUPA
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
Nano SIM, eSIM

HD Voice

Yes
 

VoLTE

Yes
 

Multimedia

Headphones

No 3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features

aptX-HD
aptX, aptX-HD

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

 
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.1

Wi-Fi

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot

USB

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

Features

Mass storage device, OTG, Charging, Headphones port
Charging

Location

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

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Barometer

Other

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

Hearing aid compatible

 
M3, T4

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration
 

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

 
$ 349

In The Box

Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation
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 20, 2019
Aug 03, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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