Xiaomi Mi 9 vs Xiaomi Mi A3

$249.00 VIEW ON AMAZON $277.99 VIEW ON eBay
$199.98 VIEW ON AMAZON $229.99 VIEW ON eBay

Display

Size

6.4 inches
6.1 inches

Resolution

2340 x 1080 pixels, 19.5:9 ratio,
403 PPI
1560 x 720 pixels, 19.5:9 ratio,
282 PPI

Technology

AMOLED
Super AMOLED

Screen-to-body

85.23 %
82.56 %

Features

HDR video support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

Qualcomm Snapdragon 855
Qualcomm Snapdragon 665

Processor

Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm
Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm

GPU

Adreno 640
Adreno 610

RAM

6GB
4GB

Internal storage

128GB, not expandable
128GB

Storage expansion

 
microSDXC up to 256 GB

OS

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

Battery

Capacity

3300 mAh
4030 mAh

Type

Not user replaceable
Not user replaceable

Charging

Qualcomm Quick Charge 4+, Qi wireless charging
Qualcomm Quick Charge 3.0

Camera

Rear

Triple camera
Triple camera

Main camera

48 MP
48 MP

Features

Sapphire crystal lens cover, Laser and PDAF, CMOS image sensor
PDAF

Second camera

12 MP
8 MP

Features

Telephoto, Sapphire crystal lens cover, PDAF
Ultra-wide

Third camera

16 MP
2 MP

Features

Ultra-wide, Sapphire crystal lens cover, PDAF
Depth information

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, Video calling, Video sharing

Front

20 MP
32 MP

Features

HDR
 

Design

Dimensions

6.20 x 2.94 x 0.30 inches (157.5 x 74.67 x 7.61 mm)
6.04 x 2.83 x 0.33 inches (153.48 x 71.85 x 8.475 mm)

Weight

6.10 oz (173 g)
the average is 6.3 oz (179 g)
6.13 oz (174 g)
the average is 6.3 oz (179 g)

Materials

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

Biometrics

In-screen fingerprint
2D Face unlock, In-screen fingerprint

Colors

Black, Purple, Blue
Gray, Blue, White

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), 20(800 DD), 28(700 APT)

LTE (TDD)

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

UMTS

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

Data Speed

LTE-A, HSPA, HSUPA
LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
 

VoLTE

Yes
 

Multimedia

Headphones

No 3.5mm jack
3.5mm jack

Features

aptX-HD
Album art cover, Background playback

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; Hotspot, Wi-Fi Direct

USB

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

Features

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

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other

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

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration
Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Shopping information

In The Box

Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation
10W charger, USB Type-C cable, SIM eject tool, User guide, Soft case, Warranty card
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