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Xiaomi Redmi K40 Pro Smartphone

MSRP 2799 CNYNEX score 74%

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Product Overview

Redmi K40 Pro is part of Xiaomi's 2021 Redmi K40-series dual-SIM 5G smartphones. Compared to the base K40, it uses the same Snapdragon 888 chipset found in Xiaomi's flagship Mi 11 as well as numerous other flagship smartphones, including the Galaxy S21.
Sharing the same dimensions with the base K40, the K40 Pro also has the same 6.67-inch OLED display sourced from Samsung. As a result, it has the same 20MP front camera set in a small centered punch hole found in other recent Xiaomi smartphones.
Like the two other models in the K40 series, the K40 Pro also offers 120Hz refresh rate. However, the Pro models uniquely enjoy the latest WiFi 6E and Bluetooth 5.2 connectivity, which are topped up by multi-functional NFC and IR blaster.
The Redmi K40 Pro's credentials also include up to 8GB of LPDDR5 memory and 256GB of UFS 3.1 storage, on part with the best from South Korea despite the market positioning of the Redmi sub-brand.

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Ratings

What we found**

Pros
  • Bright AMOLED display with 120 Hz
  • Good battery life
  • Fast Wi-Fi
Cons
  • Mediocre camera performance
  • Only 12 months of warranty

What external reviewers found***

NEX score: 74% (not directly comparable across industries)
Pros
  • Good battery life
  • Fast UFS storage
  • High-quality OLED panel
Cons
  • No IP certification
  • No wireless charging
  • No telephoto lens
Read More

Price Comparison (incl. referral links)*

Specifications

Connectivity

Ports
USB-C
Wireless Connectivity
WiFi 6E, Bluetooth 5.2, NFC, IR blaster

Construction

Battery | Capacity
4520 mAh
Camera | Front
20MP
Camera | Rear | Telephoto
5MP
Camera | Rear | Ultra-Wide
8MP, f/2.2
Camera | Rear | Wide
64MP, Sony IMX686, f/1.89
Colors
Glossy Black, Icy White, and Dreamland
Material
Corning Gorrila Glass 5
Speakers
Dual speakers

Dimensions

Size | Depth
7.8 mm
Size | Height
163.7 mm
Size | Width
76.4 mm
Weight
196 g

Display

Aspect Ratio
20:9
Brightness
900 nits (typ) / 1300 nits (max)
Contrast Ratio
5,000,000:1 (typical)
Display Color Depth
10-bit
Display Diagonal
6.67 inch
Display Type
Samsung E4 AMOLED (OLED)
Gamut
100% DCI-P3
Refresh Rate
120 Hz
Resolution
FHD+ 2400x1080

Function

Audio
Dolby Atmos
Bluetooth Codecs
AAC / LDAC / LHDC
Chipset
Qualcomm Snapdragon 888
Fast Charging
55W wired turbo charging
GPS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
Graphics
Qualcomm Adreno 660 GPU
HDR
HDR10+
Operating System
MIUI 12, Android 11
Processor
Qualcomm Kryo 680, 8-core
Security
Side-mounted fingerprint sensor
SIM
Dual nano 5G
Touch Screen
360Hz touch sampling rate
Video Recording
8K 30fps / 4K 60fps / FHD 960fps

Performance

Charging Time
52min to 100%
Memory | Capacity
6 or 8 GB
Memory | Type
LPDDR5 6400Mbps
Power Supply
33 W
Storage
128 or 256 GB UFS 3.1

Production

Debut
2021-02-25

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3rd-Party Review Videos

External Reviews

notebookcheck[1]

Sentiment Score 74%
Reviewers from notebookcheck have found the following***:
The Redmi K40 Pro supports a "360° light sensor technology" that is supposed to precisely control the accuracy of the automatic brightness adjustment. Thanks to the OLED technology used, the black levels are first-class and the contrast ratio is very good (infinite in theory) The system speed of the Redmi Phone is first-rate.
Find the original article here.
Pros
  • High-quality OLED panel
  • Good battery life
  • Fast UFS storage
Cons
  • No telephoto lens
  • No wireless charging
  • No IP certification

User Reviews

References

1. ^ Xiaomi Redmi K40 Pro smartphone review - Flagship performance at a mid-range price. [notebookcheck]. https://www.notebookcheck.net/Xiaomi-Redmi-K40-Pro-smartphone-review-Flagship-performance-at-a-mid-range-price.540641.0.html. Retrieved 2021-05-24.

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