Xiaomi Mi Mix Alpha vs Samsung Galaxy A21 Specs Comparison

Availability

Officially announced
Sep 24, 2019	Apr 08, 2020
Scheduled release
December 2019
Prices (MSRP)
	$250

Design

Dimensions
6.08 x 2.85 x 0.41 inches 154.38 x 72.3 x 10.4 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
8.50 oz / 241.0 g	6.81 oz / 193.0 g
Materials
Frame: Titanium	Back: Plastic Frame: Plastic
Biometrics
Optical in-screen fingerprint	Fingerprint (touch)
Keys
	Right: Volume control, Lock/Unlock key
Colors
Black	Black

Display

Size
7.9-inch, 180.49% screen-to-body	6.5-inch, 79.20% screen-to-body
Type
OLED	IPS LCD, 60Hz
Resolution
2250x2088px, 388 PPI	1600x720px, 20:9 ratio, 270 PPI

Hardware

System chip
Snapdragon 855+ 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
12GB (LPDDR4)/512GB	3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
	microSDXC up to 512 GB
OS
Android (10)	Android (10)

Battery

Type
4050 mAh, Li - Ion	4000 mAh, Li - Polymer
Charging
Fast charging	Fast charging
Charge speed
	Wired: 15.0W

Camera

Rear
Triple camera, Doubles as a selfie camera	Quad camera
Main camera
108 MP (Sapphire crystal lens cover, OIS, Laser and PDAF) Aperture size: F1.7 Sensor size: 1/1.33" Pixel size: 0.8 μm	16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm
Second camera
12 MP (Sapphire crystal lens cover, Laser and PDAF) Optical zoom: 2.0x Aperture size: F2.0 Sensor size: 1/2.55" Pixel size: 1.4 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
20 MP (Ultra-wide, Sapphire crystal lens cover, Laser autofocus) Aperture size: F2.2 Sensor size: 1/2.8" Pixel size: 1 μm	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
Dual LED	LED
Video recording
4K UHD, 1080p	1080p (30 fps)
Front
	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
a,b,g,n,ac,dual-band MIMO, 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, Hall (for flip covers), Thermometer, Humidity, 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, Dual-band positioning, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
	NFC

Discover more

Full Specs Xiaomi Mi Mix Alpha Specs

Full Specs Samsung Galaxy A21 Specs

Multimedia

Headphones
	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
aptX-HD
Screen mirroring
DLNA,Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD) Bands
	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
	38, 39, 40, 41
3G Bands
	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: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
	Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Alternative variants

for Verizon

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

for Sprint

4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41