Xiaomi Mi Mix Alpha vs Samsung Galaxy A31 Specs Comparison

Display

Size
7.9-inch	6.4-inch
Resolution
2250 x 2088 px, 388 PPI	2400 x 1080 px, 20:9 ratio, 411 PPI
Technology
OLED	Super AMOLED
Refresh rate
	60Hz
Screen-to-body
180.49 %	84.88 %
Features
Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 855+ SM8150-AC (7 nm)	MediaTek Helio P65 MT6768 (12 nm)
Processor
Octa-core, 2960 MHz, Kryo 485, 64-bit	Octa-core, 2x 2.0GHz Cortex-A75 + 6x 2.0GHz Cortex-A55, 64-bit
GPU
Adreno 640	Mali-G52 MC2
RAM
12GB (LPDDR4)	4GB (LPDDR4)
Internal storage
512GB	64GB (eMMC 5.1), available to use: 46.2 GB
Storage expansion
	microSDXC up to 512 GB
OS
Android (10)	Android (10), Samsung One UI
Device type
Smartphone	Smartphone

Battery

Capacity
4050 mAh	5000 mAh
Type
Li - Ion, Not user replaceable	Li - Polymer, Not user replaceable
Charging
Fast charging	Fast charging
Max 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) Specifications: Aperture size: F1.7 Sensor size: 1/1.33" Pixel size: 0.8 μm	48 MP (PDAF) Specifications: Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
12 MP (Sapphire crystal lens cover, Laser and PDAF) Specifications: Optical zoom: 2.0x Aperture size: F2.0 Sensor size: 1/2.55" Pixel size: 1.4 μm	8 MP (Ultra-wide) Specifications: 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) Specifications: Aperture size: F2.2 Sensor size: 1/2.8" Pixel size: 1 μm	5 MP (Macro) Specifications: Aperture size: F2.4
Fourth camera
	5 MP (Depth information) Specifications: Aperture size: F2.4
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD), 1920x1080 (Full HD)	1920x1080 (Full HD) (30 fps)
Front
	20 MP, Video capture: 1920x1080 (Full HD)

Design

Dimensions
6.08 x 2.85 x 0.41 inches (154.38 x 72.3 x 10.4 mm)	6.27 x 2.88 x 0.34 inches (159.3 x 73.1 x 8.6 mm)
Weight
8.50 oz(241.0 g)	6.53 oz(185.0 g)
Materials
Frame: Titanium	Back: Plastic
Biometrics
Optical in-screen fingerprint	Optical in-screen fingerprint
Keys
	Right: Volume control, Lock/Unlock key
Colors
Black	Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Cellular

4G (FDD)
	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)
4G (TDD)
	Bands 38(2600), 40(2300), 41(2600+)
3G
	Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A, 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

Multimedia

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

Connectivity & Features

Bluetooth
5.0	5.0
Wi-Fi
802.11 a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
Type-C (reversible), Features: Charging	Type-C (reversible), USB 2.0, Features: Charging, OTG
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Dual-band positioning, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Thermometer, Humidity	Accelerometer, Gyroscope, Compass
Other
	NFC

Regulatory Approval

FCC approval
	Date approved: Mar 08, 2020 FCC ID value: A3LSMA315GL
Measured SAR
	Head: 0.53 W/kg Body: 0.56 W/kg Simultaneous Transmission: 1.42 W/kg Wireless Router: 0.65 W/kg Phablet: 0.89 W/kg

Buyers information

MSRP
	€ 300

Availability

Officially announced
Sep 24, 2019	Mar 24, 2020
Scheduled release
December 2019

Alternative variants

with 128GB storage

RAM	6GB
Internal storage	128GB

Links

Full specifications
Xiaomi Mi Mix Alpha Specs	Samsung Galaxy A31 Specs