Xiaomi Poco X3 Pro vs Samsung Galaxy A21 Specs Comparison

Availability

Officially announced
Mar 22, 2021	Apr 08, 2020
Prices (MSRP)
6GB/128GB - €249	$250

Design

Dimensions
6.51 x 3.02 x 0.37 inches 165.3 x 76.8 x 9.4 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
7.58 oz / 215.0 g	6.81 oz / 193.0 g
Materials
	Back: Plastic Frame: Plastic
Resistance
Splash, Dust; IP53
Biometrics
2D Face unlock, Fingerprint (touch)	Fingerprint (touch)
Keys
Left: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Phantom black, Frost blue, Metal bronze	Black

Display

Size
6.7-inch, 84.68% screen-to-body	6.5-inch, 79.20% screen-to-body
Type
IPS LCD, 120Hz, HDR	IPS LCD, 60Hz
Resolution
2400x1080px, 20:9 ratio, 395 PPI	1600x720px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 6

Hardware

System chip
Snapdragon 860 SM8150-AC (7 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core 2960 MHz Kryo 485	Octa-core 4x2.3GHz Cortex-A53 4x1.8G​Hz Cortex-A53
GPU
Adreno 640	PowerVR GE8320
Memory
6GB (LPDDR4)/128GB (UFS 3.1) 8GB/256GB	3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
microSDXC up to 1024 GB	microSDXC up to 512 GB
OS
Android (11)	Android (10)

Battery

Type
5160 mAh	4000 mAh, Li - Polymer
Charging
	Fast charging
Charge speed
Wired: 33.0W	Wired: 15.0W

Camera

Rear
Quad camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm	16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
2 MP (Macro) Aperture size: F2.4	2 MP (Macro) Aperture size: F2.4
Fourth camera
2 MP (Depth information) Aperture size: F2.4	2 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
4K UHD (30 fps), 1080p (60 fps), 720p (30 fps)	1080p (30 fps)
Front
	13 MP Video capture: 1080p (30 fps)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 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, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M4/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, Infrared	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Screen mirroring
	Wireless screen share
Radio
	FM

Cellular

LTE Bands
1, 2, 3, 4, 5, 7, 8, 20, 28	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
TDD Bands
38, 40, 41	38, 39, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes

Regulatory Approval

FCC approval
Date approved: Feb 01, 2021 FCC ID value: 2AFZZJ20SG	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
Head: 0.81 W/kg Body: 0.67 W/kg Simultaneous Transmission: 1.57 W/kg Wireless Router: 0.78 W/kg	Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Alternative variants

with 256GB storage

Memory	8GB/256GB
Prices (MSRP)	€299

for Verizon

LTE Bands	1, 2, 3, 5, 7, 8, 20, 28
TDD Bands	38, 40, 41
3G Bands	5, 8, 2, 1

for Sprint

LTE Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
TDD Bands	41

Discover more

Full Specs Xiaomi Poco X3 Pro Specs

Full Specs Samsung Galaxy A21 Specs