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Xiaomi Mi 9, picture 1
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Phone

Xiaomi Mi 9

Brand
Xiaomi
Release date
Mar 1, 2019
Screen size
6.39 ″
Chip
Snapdragon 855
Memory
6 GB
Storage
64 GB

The UnboxingTN Verdict

out of 100

The Mi 9 remains slim and capable, with versatile cameras and fast charging, but its small battery and Android 9 age poorly.

What is good

  • 173 g weight and 7.6 mm thickness make it slim and light.
  • 48 MP main camera, 16 MP ultrawide, and 2x optical telephoto offer versatility.
  • 20 W wireless charging and 27 W wired charging add flexibility.

What is not

  • 3300 mAh battery is small for a 6.39-inch AMOLED phone.
  • Android 9 is an outdated software foundation.
  • 60 Hz refresh rate limits display smoothness.

How the score breaks down

  • Performance 56
  • Camera 65
  • Display 47
  • Battery 18
  • Connectivity 60
  • Build 82
  • Software 34

UnboxingTN review · based on the specifications · engine 1.0.2 · Updated Sep 13, 2026

Written by UnboxingTN’s AI from the score and the specification sheet.

Reader reviews are coming, beside this score and never blended into it.

Specifications

Performance

Chip
Snapdragon 855
Chip maker
Qualcomm
Process
7 nm
Graphics
Adreno 640
Operating system
Android
System version
9

Memory and storage

Memory
6 GB
Storage
64 GB
128 GB

Display

Screen size
6.39 ″
Resolution
1,080 × 2,340
Panel type
AMOLED
Refresh rate
60 Hz
Pixel density
403 ppi
Brightness
600 nits

Battery

Battery
3,300 mAh
Wired charging
27 W
Wireless charging
20 W

Cameras

Cameras
main · 48 MP · f/1.8
ultrawide · 16 MP · f/2.2
telephoto · 12 MP · f/2.2 · 2×
selfie · 20 MP · f/2

Connectivity

Mobile network
4G
Wi-Fi
Wi-Fi 5
Bluetooth
5.0
NFC
Yes
USB
USB-C 2.0

Design

Weight
173 g
Height
157.5 mm
Width
74.7 mm
Thickness
7.6 mm
Colours
Fioletowy Czarny Ocean Blue

Data source · techapi:xiaomi-mi-9