Xiaomi Mi A1 vs Xiaomi Mi A2 Specs Comparison

Design

Dimensions
6.12 x 2.98 x 0.29 inches 155.4 x 75.8 x 7.3 mm	6.25 x 2.97 x 0.29 inches 158.7 x 75.4 x 7.3 mm
Weight
5.82 oz (165.0 g)	5.93 oz (168.0 g)
Materials
Back: Metal	Back: Aluminum
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Pink	Black, Gold, Pink, Blue, Red

Display

Size
5.5-inch	6.0-inch
Resolution
1920x1080px, 401 PPI	2160x1080px, 18:9 ratio, 403 PPI
Technology
IPS LCD	IPS LCD
Screen-to-body
70.87 %	77.32 %
Peak brightness
450 cd/m2 (nit)
Features
Oleophobic coating, Ambient light sensor, Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 5), ShatterShield, Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 625 8953 (14 nm)	Qualcomm Snapdragon 660 SDM660 (14 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core 2200 MHz Kryo 260
GPU
Adreno 506	Adreno 512
RAM
4GB (LPDDR3)	6GB (LPDDR4)
Internal storage
64GB	128GB
Storage expansion
microSDXC up to 256 GB
OS
Android (9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat)	Android (10, 8.1 Oreo)

Battery

Capacity
3080 mAh	3010 mAh
Type
Li - Ion	Li - Polymer
Charging
Fast charging	Qualcomm Quick Charge 3.0

Camera

Rear
Dual camera	Dual camera
Main camera
12 MP (PDAF) Aperture size: F2.2 Focal length: 26 mm Pixel size: 1.25 μm	12 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2.9" Pixel size: 1.25 μm
Second camera
12 MP (Telephoto, Autofocus) Optical zoom: 2.0x Aperture size: F2.6 Focal Length: 50 mm Pixel size: 1 μm	20 MP Aperture size: F1.8 Sensor size: 1/2.8" Pixel size: 1 μm
Flash
Dual LED	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) (30 fps), 1280x720 (HD) (120 fps) Video calling, Video sharing
Front
5 MP, Video capture: 1920x1080 (Full HD)	20 MP (Flash, 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 Wi-Fi Direct, Hotspot
USB
Type-C	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, BeiDou
Sensors
Accelerometer, Gyroscope, Hall (for flip covers)	Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync	Infrared, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback	Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
Noise cancellation	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)
4G (TDD)
Bands 40(2300), 41(2600+)	Bands 38(2600), 40(2300)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 5(850), 8(900), 3(1800), 2(1900)
Data Speed
LTE, HSPA, HSUPA	LTE-A, HSPA, HSUPA
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM

Buyers information

In The Box
	Power adapter, USB cable, SIM eject too, Type-C to Audio adapter, User guide, Clear soft case

Availability

Officially announced
Sep 05, 2017	Jul 24, 2018

Alternative variants

with 32 GB of storage

RAM	4GB
Internal storage	32GB

with 64 GB of storage

RAM	4GB
Internal storage	64GB

Links

Full specifications
Xiaomi Mi A1 Specs	Xiaomi Mi A2 Specs
PhoneArena Review
	Xiaomi Mi A2 Review
User Reviews
Xiaomi Mi A1 User Reviews	Xiaomi Mi A2 User Reviews