Xiaomi Mi 9 vs Xiaomi Redmi 9 Specs Comparison

Design

Dimensions
6.20 x 2.94 x 0.30 inches 157.5 x 74.67 x 7.61 mm	6.43 x 3.03 x 0.36 inches 163.32 x 77.01 x 9.1 mm
Weight
6.10 oz (173.0 g)	6.98 oz (198.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Metal
Biometrics
Optical in-screen fingerprint	2D Face unlock, Fingerprint (touch)
Keys
	Right: Volume control, Lock/Unlock key
Colors
Black, Purple, Blue	Carbon gray, Sunset purple, Ocean green

Display

Size
6.4-inch	6.5-inch
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	2340x1080px, 19.5:9 ratio, 395 PPI
Technology
AMOLED	IPS LCD
Screen-to-body
85.23 %	83.27 %
Peak brightness
600 cd/m2 (nit)
Features
HDR support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor	Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 855 (7 nm)	MediaTek Helio G80 (12 nm)
Processor
Octa-core 2840 MHz Kryo 485	Octa-core 2000 MHz Arm Cortex-A75 and Arm Cortex-A55
GPU
Adreno 640	Mali G52 MC2
RAM
6GB (LPDDR4)	3GB (LPDDR4)
Internal storage
128GB	32GB (eMMC 5.1)
Storage expansion
not expandable	microSDXC
OS
Android (9.0 Pie), Xiaomi MI UI	Android

Battery

Capacity
3300 mAh	5020 mAh
Charging
Qualcomm Quick Charge 4+, Qi wireless charging	Qualcomm Quick Charge 3.0
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

9h 15min

Gaming

7h 3min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Quad camera
Main camera
48 MP (Sapphire crystal lens cover, Laser and PDAF, CMOS image sensor) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	13 MP (PDAF) Aperture size: F2.2
Second camera
12 MP (Telephoto, Sapphire crystal lens cover, PDAF) Optical zoom: 2.0x Aperture size: F2.2 Focal Length: 50 mm Sensor size: 1/3.4" Pixel size: 1 μm	8 MP (Ultra-wide) Aperture size: F2.2
Third camera
16 MP (Ultra-wide, Sapphire crystal lens cover, PDAF) Aperture size: F2.2 Focal Length: 17 mm Sensor size: 1/3" Pixel size: 1 μm	5 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information)
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps) Continuous autofocus, EIS, Video calling, Video sharing	1920x1080 (Full HD)
Front
20 MP (HDR), Video capture: 1920x1080 (Full HD)	8 MP (HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
802.11 a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot	802.11 b,g,n Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass
Other
NFC, Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC, Infrared

Multimedia

Headphones
No 3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 28(700 APT)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
Yes	Yes
VoLTE
Yes	Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording

Buyers information

In The Box
Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation	10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide

Availability

Officially announced
Feb 20, 2019

Alternative variants

with 64 GB storage

Internal storage	64GB

with 64GB storage

RAM	4GB
Internal storage	64GB

Explorer Edition

RAM	12GB
Internal storage	256GB

Links

Full specifications
Xiaomi Mi 9 Specs	Xiaomi Redmi 9 Specs
PhoneArena Review
Xiaomi Mi 9 Review	Xiaomi Redmi 9 Review
User Reviews
	Xiaomi Redmi 9 User Reviews