Xiaomi Mi 9 vs Xiaomi Mi A3
Display
Size
Resolution
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
GPU
Adreno 640
Adreno 610
RAM
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
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
Weight
the average is 6.3 oz (179 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
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
