Xiaomi Mi A3 vs Samsung Galaxy A21s 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
Samsung Galaxy A21s
Xiaomi Mi A3 Samsung Galaxy A21s
Released · Jul 24, 2019
Released · Jun 19, 2020
6.1-inch · 1560x720px
6.5-inch · 1600x720px
Triple camera
Quad camera
4GB · 128GB
3GB · 32GB
4030 mAh
5000 mAh

Design

Dimensions
6.04 x 2.83 x 0.33 inches
153.48 x 71.85 x 8.475 mm
6.44 x 2.96 x 0.35 inches
163.7 x 75.3 x 8.9 mm
Weight
6.13 oz (173.8 g) 6.77 oz (192.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Plastic
Biometrics
2D Face unlock, Optical in-screen fingerprint 2D Face unlock, Fingerprint (touch)
Keys
Back: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Gray, Blue, White Black, White, Blue, Red

Display

Size
6.1-inch 6.5-inch
Resolution
1560x720px, 19.5:9 ratio, 282 PPI 1600x720px, 20:9 ratio, 270 PPI
Technology
Super AMOLED TFT
Screen-to-body
82.56 % 82.94 %
Features
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 665 (11 nm) Samsung Exynos 850
Processor
Octa-core
2000 MHz
Kryo 260
Octa-core
8x 2.0GHz Cortex-A55
GPU
Adreno 610 Mali-G76
Memory
4GB (LPDDR4)/128GB 3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB microSDXC up to 512 GB
OS
Android (11, 10, 9.0 Pie) Android (10)

Battery

Type
4030 mAh 5000 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 3.0 Fast charging
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
Untested
Browsing
Untested
Video
11h 9min
Gaming
7h 48min

Camera

Rear
Triple camera Quad camera
Main camera
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2.3"
Pixel size: 0.8 μm
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
2 MP (Depth information)
Aperture size: F2.4
2 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (240 fps)
EIS, Video calling, Video sharing
1080p (30 fps)
Front
32 MP
Video capture: 1080p
13 MP
Video capture: 1080p

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 Type-C, USB 2.0
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
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync NFC

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)
Noise cancellation

Cellular

4G (FDD)
Bands 1, 2, 3, 4, 5, 7, 8, 20, 28 Bands 1, 2, 3, 5, 7, 8, 20, 28
4G (TDD)
Bands 38, 40 Bands 38, 40, 41
3G
Bands 5, 8, 4, 2, 1 Bands 1, 2, 5, 8
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
Yes Yes
SIM type
Nano SIM Nano SIM

Buyers information

MSRP
€ 240
In The Box
10W charger, USB Type-C cable, SIM eject tool, User guide, Soft case, Warranty card

Availability

Officially announced
Jul 17, 2019 May 15, 2020

Alternative variants

with 64 GB storage
Memory 64GB
with 4GB RAM
Memory 4GB/64GB
with 6GB RAM
Memory 6GB/64GB
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