Xiaomi Mi Mix Alpha vs Xiaomi Redmi Note 9 Specs Comparison

Availability

Officially announced
Sep 24, 2019	Apr 30, 2020
Scheduled release
December 2019

Design

Dimensions
6.08 x 2.85 x 0.41 inches 154.38 x 72.3 x 10.4 mm	6.39 x 3.04 x 0.35 inches 162.3 x 77.2 x 8.9 mm
Weight
8.50 oz / 241.0 g	7.02 oz / 199.0 g
Materials
Frame: Titanium	Frame: Plastic
Resistance
	Splash
Biometrics
Optical in-screen fingerprint	Fingerprint (touch)
Keys
	Right: Volume control, Lock/Unlock key
Colors
Black	Forest green, Polar white, Midnight gray

Display

Size
7.9-inch, 180.49% screen-to-body	6.5-inch, 83.52% screen-to-body
Type
OLED	IPS LCD
Resolution
2250x2088px, 388 PPI	2340x1080px, 19.5:9 ratio, 395 PPI
Protection
	Corning Gorilla Glass 5

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	0.8 (Excellent)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 855+ SM8150-AC (7 nm)	MediaTek Helio G85 (12 nm)
Processor
Octa-core 2960 MHz Kryo 485	Octa-core 2000 MHz Arm Cortex-A75 and ArmCortex-A55
GPU
Adreno 640	Mali G52 MC2
Memory
12GB (LPDDR4)/512GB	3GB (LPDDR4)/64GB (eMMC 5.1) 4GB/128GB
Storage expansion
	microSDXC up to 128 GB
OS
Android (10)	Android (10)

Battery

Type
4050 mAh, Li - Ion	5020 mAh, Li - Polymer
Charging
Fast charging	Fast charging Reverse wired charging
Charge speed
	Wired: 18.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

10h 43min

Gaming

7h 34min

Learn more on our PhoneArena Battery Test Results page

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	48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 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: 1.2 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, Autofocus) Aperture size: F2.4 Pixel size: 1.75 μm
Fourth camera
	2 MP Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.7 μm
Flash
Dual LED	LED
Video recording
4K UHD, 1080p	1080p (30 fps), 720p (120 fps)
Front
	13 MP (HDR) 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
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
Other
	NFC, Infrared

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

Cellular

4G (FDD) Bands
	1, 2, 3, 4, 5, 7, 8, 20, 28
4G (TDD) Bands
	38, 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, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
VoLTE
	Yes

Alternative variants

with 128GB storage

Memory	4GB/128GB

Discover more

Full Specs Xiaomi Mi Mix Alpha Specs

Full Specs Xiaomi Redmi Note 9 Specs PA Review Xiaomi Redmi Note 9 Review