Xiaomi Mi A1 vs Xiaomi Mi A2

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Display

Display size

5.5 inches
6.0 inches

Resolution

1080 x 1920 pixels
1080 x 2160 pixels

Pixel density

401 ppi
403 ppi

Technology

IPS LCD
IPS LCD

Screen-to-body ratio

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

Camera

Rear

Dual camera
Dual camera

Main camera

12 megapixels
12 megapixels

Hardware Features

Phase detection autofocus
Phase detection autofocus

Specifications

Aperture size: F2.2; Focal length: 26 mm; Pixel size: 1.25 μm
Aperture size: F1.8; Sensor size: 1/2.9"; Pixel size: 1.25 μm

Second camera

12 megapixels
20 megapixels

Hardware Features

Telephoto, Autofocus
 

Specifications

Optical zoom: 2x; Aperture size: F2.6; Focal Length: 50 mm; Pixel size: 1 μm
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)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)

Features

Video calling, Video sharing
Video calling, Video sharing

Front

5 megapixels
20 megapixels

Features

 
Flash, High Dynamic Range mode (HDR)

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 g)
the average is 6 oz (172 g)
5.93 oz (168 g)
the average is 6 oz (172 g)

Materials

Back: Metal
Back: Aluminum

Biometrics

Fingerprint (touch)
Fingerprint (touch)

Features

Touch sensitive control keys
 

Colors

Black, Gold, Pink
Black, Gold, Pink, Blue, Red

Hardware & Performance

System chip

Qualcomm Snapdragon 625 8953
Qualcomm Snapdragon 660 SDM660

Processor

Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm

GPU

Adreno 506
Adreno 512

RAM

4 GB
6 GB

Internal storage

64 GB
128 GB

Storage expansion

up to 256 GB
 

OS

Android (9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat)
Android (8.1 Oreo)

Battery

Capacity

3080 mAh
3010 mAh

Charging

Yes
Qualcomm Quick Charge 3.0

Cellular

LTE (FDD)

Bands 1, 3, 5
Bands 1, 2, 3, 4, 5, 7, 8, 20

LTE (TDD)

Bands 40, 41
Bands 38, 40

UMTS

850, 900, 1900, 2100 MHz
850, 900, 1800, 1900 MHz

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz

Data

LTE, HSPA, HSUPA
LTE-A, HSPA, HSUPA

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

Connectivity

Bluetooth

4.2
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band
802.11 a, b, g, n, ac, dual-band

USB

Yes
USB 2.0

Connector

USB Type-C (reversible)
USB Type-C (reversible)

Features

Mass storage device, USB charging
Mass storage device

Location

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, BeiDou

Other

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

Phone features

Sensors

Accelerometer, Gyroscope, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Notifications

Haptic feedback
Haptic feedback, Music ringtones, Vibration

Other features

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

Multimedia

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Headphones connector

3.5mm
USB Type-C (reversible)

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Shopping information

In The Box

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