Xiaomi Redmi 9 vs Samsung Galaxy A02s

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

Display

Size:

6.5 inches
6.5 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 395 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

IPS LCD
IPS LCD

Screen-to-body:

83.27 %
81.80 %

Features:

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

Hardware

System chip:

MediaTek Helio G80
Qualcomm Snapdragon 450 SDM450

Processor:

Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm
Octa-core, 1800 MHz, Cortex-A53, 64-bit, 14 nm

GPU:

Mali G52 MC2
Adreno 506

RAM:

3GB LPDDR4
3GB

Internal storage:

32GB (eMMC 5.1)
32GB (eMMC 5.1), available to use: 20.5 GB

Storage expansion:

microSDXC
microSDXC up to 1024 GB

Device type:

Smartphone
Smartphone

OS:

Android
Android (11, 10)

Battery

Capacity:

5020 mAh
5000 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

Qualcomm Quick Charge 3.0
Samsung Adaptive Fast Charging

Max charge speed:

Wired: 18.0W
Wired: 15.0W

Camera

Rear:

Quad camera
Triple camera

Main camera:

13 MP (PDAF)
13 MP (Autofocus)

Specifications:

Aperture size: F2.2
Aperture size: F2.2

Second camera:

8 MP (Ultra-wide)
2 MP (Macro)

Specifications:

Aperture size: F2.2
Aperture size: F2.4

Third camera:

5 MP (Macro)
2 MP (Depth information)

Specifications:

Aperture size: F2.4
Aperture size: F2.4

Fourth camera:

2 MP (Depth information)

Video recording:

1920x1080 (Full HD)
1920x1080 (Full HD) (30 fps)

Front:

8 MP (HDR)
5 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.43 x 3.03 x 0.36 inches (163.32 x 77.01 x 9.1 mm)
6.46 x 2.99 x 0.36 inches (164.2 x 75.9 x 9.1 mm)

Weight:

6.98 oz (198.0 g)
6.91 oz (196.0 g)

Materials:

Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, Fingerprint (touch)

Keys:

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

Colors:

Carbon gray, Sunset purple, Ocean green
Black, White, Blue

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), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

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

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 5(850), 8(900)

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE Cat 4 (150/50 Mbit/s), 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

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
4.2

Wi-Fi:

802.11 b, g, n; Wi-Fi Direct, Hotspot
802.11 b, g, n, 802.1x; Wi-Fi Direct, Hotspot

USB:

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

Features:

Charging
Charging, Mass storage device

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer

Other:

NFC, Infrared

Regulatory Approval

FCC approval:

Date approved:

Feb 07, 2021

FCC ID value:

ZCASMA025U

Measured SAR:

Head:

1.00 W/kg

Body:

0.85 W/kg

Simultaneous Transmission:

1.40 W/kg

Wireless Router:

0.85 W/kg

Buyers information

In The Box:

10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide
Power brick, USB Cable, Headphones, Sim Card extractor tool
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