Xiaomi Mi A3 vs Samsung Galaxy A21s Specs Comparison

Availability

Officially announced
Jul 17, 2019	May 15, 2020
Prices (MSRP)
	€240

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, 82.56% screen-to-body	6.5-inch, 82.94% screen-to-body
Type
Super AMOLED	TFT
Resolution
1560x720px, 19.5:9 ratio, 282 PPI	1600x720px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 5

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	4.6 (Poor)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 665 (11 nm)	Samsung Exynos 850
Processor
Octa-core 2000 MHz Kryo 260	Octa-core 8x2.0GHz Cortex-A55
GPU
Adreno 610	Mali-G76
Memory
4GB (LPDDR4)/128GB 4GB/64GB	3GB (LPDDR4)/32GB (eMMC 5.1) 4GB/64GB 6GB/64GB
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

Learn more on our PhoneArena Battery Test Results page

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
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
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	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands
38, 40	38, 40, 41
3G Bands
5, 8, 4, 2, 1	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

Alternative variants

with 64 GB storage

Memory	64GB

with 4GB RAM

Memory	4GB/64GB

with 6GB RAM

Memory	6GB/64GB

Discover more

Full Specs Xiaomi Mi A3 Specs

Full Specs Samsung Galaxy A21s Specs PA Review Samsung Galaxy A21s Review