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Xiaomi Redmi K40 Pro+, picture 1
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Phone

Xiaomi Redmi K40 Pro+

Brand
Xiaomi
Release date
Mar 4, 2021
Screen size
6.67 ″
Chip
Snapdragon 888
Memory
12 GB
Storage
128 GB

The UnboxingTN Verdict

out of 100

A powerful 5G phone with an excellent camera and smooth AMOLED display, held back by its modest battery and dated software.

What is good

  • Snapdragon 888 and 12GB RAM deliver strong performance.
  • 108MP main camera captures detailed photos.
  • 6.67-inch AMOLED display offers 120Hz smoothness.

What is not

  • 4520mAh battery is relatively modest for demanding use.
  • 33W charging is not especially quick.
  • Android 11 feels dated.

How the score breaks down

  • Performance 70
  • Camera 76
  • Display 72
  • Battery 21
  • Connectivity 93
  • Build 55
  • 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.

Also known as

redmi-k40-pro

Specifications

Performance

Chip
Snapdragon 888
Chip maker
Qualcomm
Process
5 nm
Graphics
Adreno 660
Operating system
Android
System version
11

Memory and storage

Memory
12 GB
Storage
128 GB
256 GB

Display

Screen size
6.67 ″
Resolution
1,080 × 2,400
Panel type
AM-OLED
Refresh rate
120 Hz
Pixel density
395 ppi

Battery

Battery
4,520 mAh
Wired charging
33 W

Cameras

Cameras
main · 108 MP
selfie · 19.7 MP

Connectivity

Mobile network
5G
Wi-Fi
WiFi 6
Bluetooth
Bluetooth 5.2
NFC
Yes
USB
USB C reversible

Design

Weight
196 g
Height
163.7 mm
Width
76.4 mm
Thickness
7.8 mm

Data source · techapi:redmi-k40-pro