Google Pixel 3a vs Xiaomi Mi 9

$339 VIEW ON AMAZON
$255 VIEW ON AMAZON

Display

Size

5.6 inches
6.4 inches

Resolution

2220 x 1080 pixels, 18.5:9 ratio,
444 PPI
2340 x 1080 pixels, 19.5:9 ratio,
403 PPI

Technology

OLED
AMOLED

Screen-to-body

73.93 %
85.23 %

Features

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

Hardware & Performance

System chip

Qualcomm Snapdragon 670 SDM670
Qualcomm Snapdragon 855

Processor

Octa-core, 2000 MHz, Kryo 360, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm

GPU

Adreno 615
Adreno 640

RAM

4GB LPDDR4
6GB LPDDR4

Internal storage

64GB, not expandable
128GB, not expandable

OS

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

Battery

Capacity

3000 mAh
3300 mAh

Type

Not user replaceable
Not user replaceable

Charging

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

Camera

Rear

Single camera
Triple camera

Main camera

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

Specifications

Aperture size: F1.8; Focal length: 28 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 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) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps)

Features

OIS, EIS, Video calling, Video sharing
Continuous autofocus, EIS, Video calling, Video sharing

Front

8 MP
20 MP (HDR)

Design

Dimensions

5.96 x 2.76 x 0.32 inches (151.3 x 70.1 x 8.2 mm)
6.20 x 2.94 x 0.30 inches (157.5 x 74.67 x 7.61 mm)

Weight

5.19 oz (147 g)
the average is 6.4 oz (184 g)
6.10 oz (173 g)
the average is 6.4 oz (184 g)

Materials

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

Biometrics

Fingerprint (touch)
In-screen fingerprint

Colors

Black, Purple, White
Black, Purple, Blue

Cellular

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
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)

LTE (TDD)

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

UMTS

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

Data Speed

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

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

VoLTE

 
Yes

Multimedia

Headphones

3.5mm jack
No 3.5mm jack

Features

aptX-HD
aptX-HD

Connectivity & Features

Bluetooth

5.0
5.0

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 2.0

Features

Charging, Mass storage device
Mass storage device, OTG, Charging, Headphones port

Sensors

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

Other

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

Phone features

Notifications

 
Haptic feedback, Music ringtones, Vibration

Other features

 
Voice dialing, Voice commands, Voice recording

Shopping information

In The Box

18W USB-C power adapter, 1M USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool
Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation

MSRP

$ 399
 
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