Xiaomi Mi A1 vs Xiaomi Redmi 9

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$141 VIEW ON AMAZON

Display

Size

5.5 inches
6.5 inches

Resolution

1920 x 1080 pixels,
401 PPI
2340 x 1080 pixels, 19.5:9 ratio,
395 PPI

Technology

IPS LCD
IPS LCD

Screen-to-body

70.87 %
83.27 %

Peak brightness

450 cd/m2 (nit)
 

Features

Oleophobic coating, Ambient light sensor, Proximity sensor
Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip

Qualcomm Snapdragon 625 8953
MediaTek Helio G80

Processor

Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm

GPU

Adreno 506
Mali G52 MC2

RAM

4GB LPDDR3
3GB LPDDR4

Internal storage

64GB
32GB (eMMC 5.1)

Storage expansion

microSDXC up to 256 GB
microSDXC

OS

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

Battery

Capacity

3080 mAh
5020 mAh

Type

Li - Ion, Not user replaceable
Not user replaceable

Battery life test results

 

Charging

Fast charging
Qualcomm Quick Charge 3.0

Max charge speed

 
Wired: 18.0W

Camera

Rear

Dual camera
Quad camera

Main camera

12 MP (PDAF)
13 MP (PDAF)

Specifications

Aperture size: F2.2; Focal length: 26 mm; Pixel size: 1.25 μm
Aperture size: F2.2

Second camera

12 MP (Telephoto, Autofocus)
8 MP (Ultra-wide)

Specifications

Optical zoom: 2x; Aperture size: F2.6; Focal Length: 50 mm; Pixel size: 1 μm
Aperture size: F2.2

Third camera

 
5 MP (Macro)

Specifications

 
Aperture size: F2.4

Fourth camera

 
2 MP (Depth information)

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
1920x1080 (Full HD)

Features

Video calling, Video sharing
 

Front

5 MP
8 MP (HDR)

Design

Dimensions

6.12 x 2.98 x 0.29 inches (155.4 x 75.8 x 7.3 mm)
6.43 x 3.03 x 0.36 inches (163.32 x 77.01 x 9.1 mm)

Weight

5.82 oz (165.0 g)
the average is 6.2 oz (178 g)
6.98 oz (198.0 g)
the average is 6.2 oz (178 g)

Materials

Back: Metal
 

Biometrics

Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Features

Touch sensitive control keys
 

Colors

Black, Gold, Pink
Carbon gray, Sunset purple, Ocean green

Cellular

LTE (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)

LTE (TDD)

Bands 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

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

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

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 b, g, n; Wi-Fi Direct, Hotspot

USB

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

Features

Mass storage device, Charging
Charging

Location

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

Buyers information

In The Box

 
10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide
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