Xiaomi Mi 8 vs Xiaomi Mi 9

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Display

Display size

6.2 inches
6.4 inches

Resolution

1080 x 2248 pixels
1080 x 2340 pixels

Pixel density

402 ppi
403 ppi

Technology

AMOLED
AMOLED

Screen-to-body ratio

83.66 %
85.23 %

Features

HDR video support, Pressure-sensitive, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
HDR video support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor

Camera

Rear

Dual camera
Triple camera

Main camera

12 megapixels
48 megapixels

Hardware Features

Optical image stabilization, Phase detection autofocus
Sapphire crystal lens cover, Laser and Phase detection autofocus, CMOS image sensor

Specifications

Aperture size: F1.8; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

12 megapixels
12 megapixels

Hardware Features

Telephoto, Autofocus
Telephoto, Sapphire crystal lens cover, Phase detection autofocus

Specifications

Optical zoom: 2x; Aperture size: F2.4; Focal Length: 56 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
Optical zoom: 2x; Aperture size: F2.2; Focal Length: 50 mm; Sensor size: 1/3.4"; Pixel size: 1 μm

Third camera

 
16 megapixels

Hardware Features

 
Ultra-wide, Sapphire crystal lens cover, Phase detection autofocus

Specifications

 
Aperture size: F2.2; Focal Length: 17 mm; Sensor size: 1/3"; Pixel size: 1 μm

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps)

Features

Video calling, Video sharing
Continuous autofocus, Digital image stabilization, Video calling, Video sharing

Front

20 megapixels
20 megapixels

Features

High Dynamic Range mode (HDR)
High Dynamic Range mode (HDR)

Design

Dimensions

6.10 x 2.94 x 0.30 inches (154.9 x 74.8 x 7.6 mm)
6.20 x 2.94 x 0.30 inches (157.5 x 74.67 x 7.61 mm)

Weight

6.17 oz (175 g)
the average is 6.1 oz (174 g)
6.10 oz (173 g)
the average is 6.1 oz (174 g)

Materials

Back: Glass (Corning Gorilla Glass 5)
Back: Glass (Corning Gorilla Glass 5); Frame: Metal

Biometrics

2D Face unlock, Fingerprint (touch)
In-screen fingerprint

Colors

Black, Gold, Blue, White
Black, Purple, Blue

Multimedia

Headphones

USB Type-C (reversible)
USB Type-C (reversible)

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
aptX-HD

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

for Noise cancellation
 

Hardware & Performance

System chip

Qualcomm Snapdragon 845 SDM845
Qualcomm Snapdragon 855

Processor

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm

GPU

Adreno 630
Adreno 640

RAM

6 GB
6 GB

Internal storage

256 GB
128 GB, not expandable

OS

Android (9.0 Pie, 8.0 Oreo)
Android (9.0 Pie), Xiaomi MI UI

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; MIMO, Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot

USB

USB Type-C (reversible)
USB Type-C (reversible), USB 2.0

Features

Mass storage device
Mass storage device, USB OTG

Location

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass

Other

NFC, VoIP, Tethering, Computer sync, OTA sync
NFC, Infrared, VoIP, Tethering, Computer sync, OTA sync

Cellular

LTE (FDD)

Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20
Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28

LTE (TDD)

Bands 34, 38, 39, 40, 41
Bands 38, 39, 40

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data

LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSPA, HSUPA

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

VoLTE

Yes
Yes

Battery

Capacity

3400 mAh
3300 mAh

Type

Not user replaceable
Not user replaceable

Charging

Qualcomm Quick Charge 4+
Qualcomm Quick Charge 4+, Qi wireless charging

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration
Haptic feedback, Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Shopping information

In The Box

Mi 8 Protective cover / Power adapter / USB Type-C cable / Type-C to audio converter / SIM insertion tool / User guide
Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation
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