Xiaomi Mi 9 vs Xiaomi 12

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.4 inches
6.3 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
2400 x 1080 pixels, 20:9 ratio, 419 PPI

Technology:

AMOLED
AMOLED

Refresh rate:

120Hz

Screen-to-body:

85.23 %
89.30 %

Peak brightness:

600 cd/m2 (nit)
1100 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 Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 855 (7 nm)
Qualcomm Snapdragon 8 Gen1 SM8450 (4 nm)

Processor:

Octa-core, 2840 MHz, Kryo 485, 64-bit
Octa-core, 1x 3.00GHz Cortex-X2 + 3x 2.50GHz Cortex-A710 + 4x 1.80GHz Cortex-A510

GPU:

Adreno 640
Adreno 730

RAM:

6GB LPDDR4
8GB LPDDR5

Internal storage:

128GB, not expandable
128GB (UFS 3.1), not expandable

Device type:

Smartphone
Smartphone

OS:

Android (9.0 Pie), Xiaomi MI UI
Android (12), MIUI 13 UI

Battery

Capacity:

3300 mAh
4500 mAh

Type:

Not user replaceable
Not user replaceable

Charging:

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

Max charge speed:

Wired: 67.0W; Wireless: 50.0W

Camera

Rear:

Triple camera
Triple camera

Main camera:

48 MP (Sapphire crystal lens cover, Laser and PDAF, CMOS image sensor)
50 MP (OIS, PDAF)

Specifications:

Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.9; Focal length: 26 mm; Sensor size: 1/1.56"; Pixel size: 1.0 μm

Second camera:

12 MP (Telephoto, Sapphire crystal lens cover, PDAF)
13 MP (Ultra-wide)

Specifications:

Optical zoom: 2.0x; Aperture size: F2.2; Focal Length: 50 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
Aperture size: F2.4; Focal Length: 12 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm

Third camera:

16 MP (Ultra-wide, Sapphire crystal lens cover, PDAF)
5 MP (Telephoto, Macro)

Specifications:

Aperture size: F2.2; Focal Length: 17 mm; Sensor size: 1/3"; Pixel size: 1 μm
Focal Length: 50 mm

Video recording:

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (960 fps)

Features:

Continuous autofocus, EIS, Video calling, Video sharing
EIS

Front:

20 MP (HDR)
32 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.20 x 2.94 x 0.30 inches (157.5 x 74.67 x 7.61 mm)
6.01 x 2.75 x 0.32 inches (152.7 x 69.9 x 8.2 mm)

Weight:

6.10 oz (173.0 g)
6.35 oz (180.0 g)

Materials:

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

Biometrics:

In-screen fingerprint
Fingerprint (touch)

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Black, Purple, Blue
Black, Green, Blue, Pink

Cellular

5G:

n1, n3, n5, n8, n20, n28, n38, n40, n41, n66, n77, n78, n79, SA, NSA

LTE (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), 32(1500 L-band), 66(AWS-3)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500)

UMTS:

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, HSDPA+ (4G) 42.2 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM
Dual Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.2

Wi-Fi:

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); Wi-Fi Direct, Hotspot

USB:

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

Features:

Mass storage device, OTG, Charging, Headphones port
Charging, OTG

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

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

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

Availability

Officially announced:

Feb 20, 2019
Dec 28, 2021
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