Samsung Galaxy A21s vs Xiaomi Redmi 9
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
Technology
TFT
IPS LCD
Screen-to-body
82.94 %
83.27 %
Features
Proximity sensor
Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware
System chip
Samsung Exynos 850
MediaTek Helio G80
Processor
GPU
Mali-G76
Mali G52 MC2
RAM
Internal storage
32GB (eMMC 5.1), available to use: 19.5 GB
32GB (eMMC 5.1)
Storage expansion
microSDXC up to 512 GB
microSDXC
Device type
Smartphone
Smartphone
OS
Android (10), Samsung One UI
Android
Battery
Capacity
5000 mAh
5020 mAh
Type
Li - Polymer, Not user replaceable
Not user replaceable
Charging
Fast charging
Qualcomm Quick Charge 3.0
Max charge speed
Wired: 18.0W
Camera
Rear
Quad camera
Quad camera
Main camera
Specifications
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.2
Second camera
8 MP (Ultra-wide)
8 MP (Ultra-wide)
Specifications
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2
Third camera
2 MP (Macro)
5 MP (Macro)
Specifications
Aperture size: F2.4
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
2 MP (Depth information)
Specifications
Aperture size: F2.4
Video recording
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD)
Front
13 MP
8 MP (HDR)
Design
Dimensions
Weight
the average is 6.3 oz (179 g)
the average is 6.3 oz (179 g)
Biometrics
2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors
Black, White, Blue, Red
Carbon gray, Sunset purple, Ocean green
Cellular
LTE (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)
LTE (TDD)
Bands 38(2600), 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
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
Connectivity & Features
Bluetooth
5.0
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), USB 2.0
Type-C (reversible), USB 2.0
Features
Charging
Charging
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope
Accelerometer, Gyroscope, Compass
Other
NFC
NFC, Infrared
Buyers information
Price
€ 240
In The Box
10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide
Availability
Officially announced
May 15, 2020
