Xiaomi Mi A1 vs Xiaomi Mi 9T Specs Comparison

Design

Dimensions
6.12 x 2.98 x 0.29 inches 155.4 x 75.8 x 7.3 mm	6.17 x 2.93 x 0.35 inches 156.7 x 74.3 x 8.8 mm
Weight
5.82 oz (165.0 g)	6.74 oz (191.0 g)
Materials
Back: Metal	Back: Metal Frame: Metal
Biometrics
Fingerprint (touch)	2D Face unlock, Optical in-screen fingerprint
Features
Touch sensitive control keys
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Pink	Carbon Black, Flame Red, Glacier Blue

Display

Size
5.5-inch	6.4-inch
Resolution
1920x1080px, 401 PPI	2340x1080px, 19.5:9 ratio, 403 PPI
Technology
IPS LCD	AMOLED
Refresh rate
	60Hz
Screen-to-body
70.87 %	85.94 %
Peak brightness
450 cd/m2 (nit)	430 cd/m2 (nit)
Features
Oleophobic coating, Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 625 8953 (14 nm)	Qualcomm Snapdragon 730 SM7150-AA (8 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core Kryo 470
GPU
Adreno 506	Adreno 618
RAM
4GB (LPDDR3)	6GB (LPDDR4)
Internal storage
64GB	128GB
Storage expansion
microSDXC up to 256 GB	not expandable
OS
Android (9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat)	Android (10, 9.0 Pie)

Battery

Capacity
3080 mAh	4000 mAh
Type
Li - Ion
Charging
Fast charging	Fast charging
Charge speed
	Wired: 18.0W

Camera

Rear
Dual camera	Triple camera
Main camera
12 MP (PDAF) Aperture size: F2.2 Focal length: 26 mm Pixel size: 1.25 μm	48 MP (PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
12 MP (Telephoto, Autofocus) Optical zoom: 2.0x Aperture size: F2.6 Focal Length: 50 mm Pixel size: 1 μm	13 MP (Ultra-wide) Aperture size: F2.4 Focal Length: 12 mm Sensor size: 1/3.1" Pixel size: 1.12 μm
Third camera
	8 MP (Telephoto) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 53 mm Sensor size: 1/4" Pixel size: 1.12 μm
Flash
Dual LED	Dual LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps) Video calling, Video sharing	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps) Video calling, Video sharing
Front
5 MP, Video capture: 1920x1080 (Full HD)	20 MP (Pop-up, HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot
USB
Type-C	Type-C
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Hall (for flip covers)	Accelerometer, Gyroscope, Compass
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback	Album art cover, Background playback
Screen mirroring
Wireless screen share
Radio
FM	FM
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 5(850)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 40(2300), 41(2600+)	Bands 38(2600), 40(2300)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE, HSPA, HSUPA	LTE-A, 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

Buyers information

In The Box
	Power adapter, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
Sep 05, 2017	Jun 12, 2019

Alternative variants

with 64 GB storage

Internal storage	64GB

Links

Full specifications
Xiaomi Mi A1 Specs	Xiaomi Mi 9T Specs
User Reviews
Xiaomi Mi A1 User Reviews