Samsung Galaxy A21s vs Xiaomi Redmi Note 9 Pro Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

7.5	8.5
Samsung Galaxy A21s	Xiaomi Redmi Note 9 Pro
Released · Jun 19, 2020	Released · May 05, 2020
6.5-inch · 1600x720px	6.7-inch · 2400x1080px
Quad camera	Quad camera
3GB · 32GB	6GB · 64GB
5000 mAh	5020 mAh

Design

Dimensions
6.44 x 2.96 x 0.35 inches 163.7 x 75.3 x 8.9 mm	6.53 x 3.02 x 0.35 inches 165.8 x 76.7 x 8.8 mm
Weight
6.77 oz (192.0 g)	7.37 oz (209.0 g)
Materials
	Back: Glass (Corning Gorilla Glass 5) Frame: Plastic
Biometrics
2D Face unlock, Fingerprint (touch)	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, White, Blue, Red	Interstellar gray, Tropical green, Glacier white

Display

Size
6.5-inch	6.7-inch
Resolution
1600x720px, 20:9 ratio, 270 PPI	2400x1080px, 20:9 ratio, 395 PPI
Technology
TFT	IPS LCD
Screen-to-body
82.94 %	84.42 %
Features
Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 850	Qualcomm Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core 8x 2.0GHz Cortex-A55	Octa-core 2300 MHz Kryo 465
GPU
Mali-G76	Adreno 618
RAM
3GB (LPDDR4)	6GB (LPDDR4)
Internal storage
32GB (eMMC 5.1), available to use: 19.5 GB	64GB (UFS 2.1)
Storage expansion
microSDXC up to 512 GB	microSDXC up to 512 GB
OS
Android (10), Samsung One UI	Android (10), Xiaomi MI UI

Battery

Capacity
5000 mAh	5020 mAh
Type
Li - Polymer	Li - Polymer
Charging
Fast charging	Fast charging
Charge speed
	Wired: 30.0W

Battery Life Estimate

Untested

Browsing

Untested

Video

11h 9min

Gaming

7h 48min

Battery Life Estimate

Untested

Browsing

Untested

Video

12h 17min

Gaming

10h 56min

Camera

Rear
Quad camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	64 MP (PDAF) Aperture size: F1.9 Focal length: 26 mm Sensor size: 1/1.7" Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm	8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
2 MP (Macro) Aperture size: F2.4	5 MP (Macro, Autofocus) Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.12 μm
Fourth camera
2 MP (Depth information) Aperture size: F2.4	2 MP (Depth information) Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.75 μm
Flash
LED	Dual LED
Video recording
1920x1080 (Full HD) (30 fps)	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)
Front
13 MP, Video capture: 1920x1080 (Full HD)	16 MP (HDR, Slow-motion videos), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	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, USB 2.0	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope	Accelerometer, Gyroscope, Compass
Other
NFC	NFC, Infrared

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 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)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, 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
Yes	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes
VoLTE
	Yes

Buyers information

MSRP
€ 240
In The Box
	33W Power adapter, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
May 15, 2020	Apr 30, 2020

Alternative variants

with 4GB RAM


RAM	4GB
Internal storage	64GB

with 128GB storage


Internal storage	128GB

with 6GB RAM


RAM	6GB
Internal storage	64GB

Links

Full specifications
Samsung Galaxy A21s Specs	Xiaomi Redmi Note 9 Pro Specs
PhoneArena Review
Samsung Galaxy A21s Review	Xiaomi Redmi Note 9 Pro Review
User Reviews
	Xiaomi Redmi Note 9 Pro User Reviews