Xiaomi 12X vs Xiaomi Mi 9 SE Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Xiaomi 12X Xiaomi Mi 9 SE
Released · Mar 15, 2022
Released · Apr 15, 2019
6.3-inch · 2400x1080px
6.0-inch · 2340x1080px
Triple camera
Triple camera
8GB · 128GB
6GB · 128GB
4500 mAh
3070 mAh

Availability

Officially announced
Mar 15, 2022 Feb 20, 2019

Design

Dimensions
6.01 x 2.75 x 0.32 inches
152.7 x 69.9 x 8.16 mm
5.81 x 2.78 x 0.29 inches
147.5 x 70.5 x 7.45 mm
Weight
6.21 oz / 176.0 g 5.47 oz / 155.0 g
Materials
Back: Glass
Frame: Aluminum
Biometrics
Fingerprint (touch) 2D Face unlock, Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Grey, Purple, Blue Black, Purple, Blue

Display

Size
6.3-inch, 89.30% screen-to-body 6.0-inch, 83.96% screen-to-body
Type
AMOLED, 120Hz, HDR, 1100 nits AMOLED, HDR, 600 nits
Resolution
2400x1080px, 20:9 ratio, 419 PPI 2340x1080px, 19.5:9 ratio, 432 PPI
Colors
16 777 216
Protection
Corning Gorilla Glass Victus Corning Gorilla Glass

Hardware

System chip
Snapdragon 870 SM8250-AC (7 nm) Snapdragon 712 SDM712 (10 nm)
Processor
Octa-core
1x3.20GHz Kryo 585
3x2.42GHz Kryo 585
4x1.80GHz Kryo 585
Octa-core
2300 MHz
Kryo 360
GPU
Adreno 650 Adreno 616
Memory
8GB (LPDDR5)/128GB (UFS 3.1)
8GB/256GB
6GB (LPDDR4)/128GB
Storage expansion
not expandable
OS
Android (11) Android (9.0 Pie)

Battery

Type
4500 mAh 3070 mAh
Charging
Fast charging
Charge speed
Wired: 67.0W

Camera

Rear
Triple camera Triple camera
Main camera
50 MP (OIS, PDAF)
Aperture size: F1.9
Pixel size: 1.0 μm
48 MP (PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
Second camera
13 MP (Ultra-wide)
Aperture size: F2.4
13 MP (Ultra-wide, PDAF)
Aperture size: F2.4
Sensor size: 1/3.06"
Pixel size: 1.12 μm
Third camera
5 MP (Telephoto, Macro)
Focal Length: 50 mm
8 MP (Telephoto, Autofocus)
Aperture size: F2.4
Sensor size: 1/4"
Pixel size: 1.12 μm
Flash
Dual LED LED
Video recording
8K UHD (24 fps), 4K UHD (30 fps), 1080p (960 fps)
EIS
4K UHD (30 fps), 1080p (120 fps), 720p (960 fps)
EIS, Video calling, Video sharing
Front
32 MP
Video capture: 1080p
20 MP (HDR)

Connectivity & Features

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

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Loudspeaker
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
n1, n3, n5, n8, n20, n28, n38, n40, n41, n66, n77, SA, NSA
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66 1, 3, 5, 7, 8
4G (TDD) Bands
38, 39, 40, 41, 42, 48 34, 38, 39, 40, 41
3G Bands
1, 2, 4, 5, 6, 8 5, 8, 2, 1
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s LTE-A, HSPA, HSUPA
Dual SIM
Yes Yes
SIM type
Dual Nano SIM Nano SIM
VoLTE
Yes

Phone Features

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

Alternative variants

With 256GB internal storage
Memory 256GB
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