Xiaomi Mi A3 vs Xiaomi Redmi Note 9

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.1 inches
6.5 inches

Resolution:

1560 x 720 pixels, 19.5:9 ratio, 282 PPI
2340 x 1080 pixels, 19.5:9 ratio, 395 PPI

Technology:

Super AMOLED
IPS LCD

Screen-to-body:

82.56 %
83.52 %

Features:

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 665
MediaTek Helio G85

Processor:

Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm

GPU:

Adreno 610
Mali G52 MC2

RAM:

4GB LPDDR4
3GB LPDDR4

Internal storage:

128GB
64GB (eMMC 5.1)

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 128 GB

Device type:

Smartphone
Smartphone

OS:

Android (10, 9.0 Pie)
Android (10), Xiaomi MI UI

Battery

Capacity:

4030 mAh
5020 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

Qualcomm Quick Charge 3.0
Fast charging, Reverse charging

Max charge speed:

Wired: 18.0W

Camera

Rear:

Triple camera
Quad camera

Main camera:

48 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.8; Sensor size: 1/2.3"; Pixel size: 0.8 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.2 μm

Third camera:

2 MP (Depth information)
2 MP (Macro, Autofocus)

Specifications:

Aperture size: F2.4
Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera:

2 MP

Specifications:

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.7 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)

Features:

EIS, Video calling, Video sharing

Front:

32 MP
13 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.04 x 2.83 x 0.33 inches (153.48 x 71.85 x 8.475 mm)
6.39 x 3.04 x 0.35 inches (162.3 x 77.2 x 8.9 mm)

Weight:

6.13 oz (173.8 g)
7.02 oz (199.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Frame: Plastic

Resistance:

Splash

Biometrics:

2D Face unlock, In-screen fingerprint
Fingerprint (touch)

Keys:

Back: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Gray, Blue, White
Forest green, Polar white, Midnight gray

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 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), 40(2300)
Bands 38(2600), 40(2300), 41(2600+)

UMTS:

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

Data Speed:

LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Shared with microSD
Yes

SIM type:

Nano SIM
Nano SIM

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

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0

Wi-Fi:

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

Features:

Charging, Mass storage device
Charging

Location:

GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

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

Buyers information

In The Box:

10W charger, USB Type-C cable, SIM eject tool, User guide, Soft case, Warranty card
22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced:

Jul 17, 2019
Apr 30, 2020
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