Xiaomi Mi 9 vs OnePlus 8 Pro Specs Comparison

Design

Dimensions
6.20 x 2.94 x 0.30 inches 157.5 x 74.67 x 7.61 mm	6.51 x 2.93 x 0.33 inches 165.3 x 74.3 x 8.5 mm
Weight
6.10 oz (173.0 g)	7.02 oz (199.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Metal	Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum
Biometrics
Optical in-screen fingerprint	2D Face unlock, Optical in-screen fingerprint
Keys
	Left: Volume control; Right: Lock/Unlock key
Colors
Black, Purple, Blue	Glacial green

Display

Size
6.4-inch	6.8-inch
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	3168x1440px, 19.8:9 ratio, 513 PPI
Technology
AMOLED	AMOLED
Refresh rate
	120Hz
Screen-to-body
85.23 %	90.79 %
Peak brightness
600 cd/m2 (nit)	1300 cd/m2 (nit)
Features
HDR support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 855 (7 nm)	Qualcomm Snapdragon 865 SM8250 (7 nm)
Processor
Octa-core 2840 MHz Kryo 485	Octa-core 2840 MHz Kryo 585
GPU
Adreno 640	Adreno 650
RAM
6GB (LPDDR4)	8GB (LPDDR5)
Internal storage
128GB	128GB (UFS 3.0)
Storage expansion
not expandable	not expandable
OS
Android (9.0 Pie), Xiaomi MI UI	Android (11, 10), Oxygen OS UI

Battery

Capacity
3300 mAh	4510 mAh
Type
	Li - Polymer
Charging
Qualcomm Quick Charge 4+, Qi wireless charging	OnePlus Warp Charge, Qi wireless charging, Reverse wireless charging
Charge speed
	Wired: 30.0W Wireless: 30.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

5h 45min

Browsing

10h 0min

Video

9h 15min

Gaming

10h 33min

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	48 MP (OIS, Laser and PDAF) Aperture size: F1.8 Focal length: 25 mm Sensor size: 1/1.4" Pixel size: 1.12 μm
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	48 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 14 mm Sensor size: 1/2" Pixel size: 0.8 μm
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	8 MP (Telephoto, OIS, Laser and PDAF) Optical zoom: 3.0x Aperture size: F2.4 Sensor size: 1/2" Pixel size: 1 μm
Fourth camera
	5 MP (Color filter) Aperture size: F2.4
Flash
Dual LED	Dual LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps) Continuous autofocus, EIS, Video calling, Video sharing	3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps) OIS, HDR, EIS
Front
20 MP (HDR), Video capture: 1920x1080 (Full HD)	16 MP (EIS, HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	5.1
WLAN
802.11 a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C, USB 3.1
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Dual-band positioning, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass
Other
NFC, Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
aptX-HD	Dolby Atmos, aptX-HD
Screen mirroring
Wireless screen share	DLNA,Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G
	Bands n2, n5, n41, n66, n71, SA, NSA
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), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300)	Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900)
Data Speed
LTE-A, HSPA, HSUPA	LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
Yes
VoLTE
Yes

Phone Features

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

Regulatory Approval

FCC approval
	Date approved: Oct 12, 2020 FCC ID value: 2ABZ2-EE007
Measured SAR
	Head: 0.93 W/kg Body: 0.89 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 0.95 W/kg

Buyers information

MSRP
	$ 899
In The Box
Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation	Warp Charge 30 Power Adapter, Warp Type-C Cable (Support USB 2.0), Quick Start Guide, Welcome Letter, Safety Information and Warranty Card, LOGO Sticker, Case, Screen Protector, SIM Tray Ejector

Availability

Officially announced
Feb 20, 2019	Apr 14, 2020

Alternative variants

with 64 GB storage

Internal storage	64GB

with 256GB storage

RAM	12GB
Internal storage	256GB
Colors	Onyx black, Ultramarine blue
MSRP	$ 999

Explorer Edition

RAM	12GB
Internal storage	256GB

for Europe

5G	Bands n1, n3, n7, n28, n78, SA, NSA
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD)	Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46

for T-Mobile

Resistance	Water, Dust; IP68

Links

Full specifications
Xiaomi Mi 9 Specs	OnePlus 8 Pro Specs
PhoneArena Review
Xiaomi Mi 9 Review	OnePlus 8 Pro Review
User Reviews
	OnePlus 8 Pro User Reviews