Scored using Smartphones Methodology v1.0
Smartphones Methodology v1.0
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Products in this category are scored under Frontum Smartphones Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Xiaomi Redmi K40 Pro (8GB + 256GB) Review | 197 Data compared

Avg. price:~£380RAM capacity:8 GBInternal storage:256 GBScreen size:6.67 inchesMain camera megapixels:64 MP & 8 MP & 5 MP

Xiaomi Redmi K40 Pro (8GB + 256GB) Review: Compare 197 technical specifications and user reviews to see how this product ranks in the Smartphones category and whether it is worth buying.

7.0/10

Overall score

Score
7.0/ 10
✕
What it is
An overall evaluation of the smartphone's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best smartphones on the market.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

90%

7.0

Technical score

10%

?

User score

â–²Better than 60% of smartphones
7.5

Value for money

Value for money
7.5/ 10
✕
What it is
An indicator that combines the smartphone's overall rating with its cost.
When it matters
When you are looking for a smartphone with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.0

Overall score

30%

8.5

Price

â–²Better than 58%
7.0

Technical score

Technical score
7.0/ 10
✕
What it is
An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.
When it matters
When you want to compare smartphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

25%

6.9

Performance & Hardware

18%

7.4

Camera

15%

7.2

Display

15%

5.7

Battery

10%

7.2

Software

10%

7.6

Connectivity

4%

8.9

Audio

3%

5.9

Design

â–²Better than 62%
?

User score

User score
8.0/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the smartphone
When it matters
When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

?

User ratings

30%

?

Number of reviews

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Technical Specifications of smartphone Xiaomi Redmi K40 Pro (8GB + 256GB)

Technical score
Technical score
7.0/ 10
✕
What it is
An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.
When it matters
When you want to compare smartphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

25%

6.9

Performance & Hardware

18%

7.4

Camera

15%

7.2

Display

15%

5.7

Battery

10%

7.2

Software

10%

7.6

Connectivity

4%

8.9

Audio

3%

5.9

Design

7.0
User score
User score
8.0/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the smartphone
When it matters
When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 10
✕
What it is
An indicator based on the number of reviews received by the smartphone.
When it matters
When you prefer to purchase a product chosen and reviewed by many other consumers.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
Xiaomi Redmi K40 Pro (8GB + 256GB) has a popularity of 1 point, which is lower than 63.9% of smartphones.
1.0
Value for money
Value for money
7.5/ 10
✕
What it is
An indicator that combines the smartphone's overall rating with its cost.
When it matters
When you are looking for a smartphone with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

70%

7.0

Overall score

30%

8.5

Price

7.5
Brand name
Xiaomi
Processor model
Qualcomm Snapdragon 888
This smartphone uses the Qualcomm Snapdragon 888 processor which is faster than processors in 75.5% of smartphones and equal to processors in 2% of smartphones.
RAM capacity
8 GB
This smartphone has a RAM capacity of 8 GB which is larger than the RAM capacity of 28.5% of smartphones and equal to that of 30.4% of smartphones.
Internal storage
256 GB
This smartphone has an internal storage capacity of 256 GB which is larger than the storage of 38.8% of smartphones and equal to that of 38.3% of smartphones.
CPU boost clock speed
2.84 GHz
The CPU boost clock speed of this smartphone is 2.84 GHz which is higher than the boost speed of 68.3% of smartphones and equal to that of 4.7% of smartphones.
Show more
Operating system
Android
This smartphone uses the Android operating system, which outperforms that of 1%.
Android 11
Android version
Android 11
This smartphone runs Android version Android 11 which is older than that found in 80.3% of smartphones and equal to that in 8.5% of smartphones.
Direct OS updates
no
This smartphone does not receive direct OS updates. 20.6% of smartphones receive direct updates.
Open-source OS
yes
This smartphone uses an open-source OS. 94.6% of smartphones use an open-source OS.
Dark mode
yes
This smartphone offers dark mode. 95.8% of smartphones support this feature.
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Multi-lens main camera
yes
This smartphone includes a multi-lens main camera system. 93.7% of smartphones include multi-lens setups.
Main camera megapixels
64 MP & 8 MP & 5 MP
This smartphone has a main camera resolution of 64 MP & 8 MP & 5 MP which is higher than that of 81.6% of smartphones and equal to that of 0.2% of smartphones.
Main camera aperture
?
Main camera sensor area
41 mm²
This smartphone has a main camera sensor area of 41 mm² which is larger than the main camera sensor area of 54.2% of smartphones and equal to that of 5.9% of smartphones.
Main camera pixel size
0.8 µm
This smartphone has a main camera pixel size of 0.8 µm which is larger than in 35.5% of smartphones and equal to the size in 21.9% of smartphones.
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Number of SIM slots
2
This smartphone has 2 SIM slots, which is more than in 3.8% of smartphones and equal to the number in 96.1% of smartphones.
Cellular module
yes
This smartphone includes a cellular module. 100% of smartphones include cellular modules.
5G connectivity
yes
This smartphone supports 5G connectivity. 66.9% of smartphones support 5G.
LTE support
yes
This smartphone supports LTE. 99.7% of smartphones include LTE connectivity.
Wi-Fi connectivity
yes
This smartphone supports Wi-Fi connectivity. 100% of smartphones offer Wi-Fi support.
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Screen size
6.67 inches
This smartphone has a screen size of 6.67 inches which is larger than the screens of 38.3% of smartphones and equal to those of 13.4% of smartphones.
Screen resolution
1080x 2400 px
This smartphone has a screen resolution of 1080x2400 px which is higher than that of 36.3% of smartphones and equal to that of 20.4% of smartphones.
Pixel density
395 ppi
This smartphone has a pixel density of 395 ppi which is higher than that of 41.7% of smartphones and equal to that of 8.9% of smartphones.
Display type
OLED/AMOLED
This smartphone uses a OLED/AMOLED display type. 58.6% of smartphones use this display technology.
Refresh rate
120 Hz
This smartphone supports a refresh rate of 120 Hz which is higher than in 34.7% of smartphones and equal to that in 55.2% of smartphones.
Show more
Battery capacity
4,520 mAh
This smartphone has a battery capacity of 4,520 mAh which is smaller than the batteries in 77.9% of smartphones and equal to those in 0.4% of smartphones.
Charging speed
33 W
This smartphone supports charging speeds of 33 W which is faster than in 38.9% of smartphones and equal to speeds in 12% of smartphones.
Fast charging
yes
This smartphone supports fast charging. 93.1% of smartphones support fast charging.
GSMArena full wired charge time
52 min
This smartphone reaches a full wired charge in 52 min which is faster than 63.9% of smartphones and equal to the time of 3.1% of smartphones.
Wireless charging
no
This smartphone does not support wireless charging. 25.2% of smartphones support wireless charging.
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Stereo speakers
yes
This smartphone includes stereo speakers. 64.4% of smartphones provide stereo audio.
3.5 mm headphone jack
no
This smartphone does not include a 3.5 mm headphone jack. 45.5% of smartphones offer this port.
Number of microphones
3
This smartphone includes 3 microphones, which is more than in 77.2% of smartphones and equal to the number in 19.7% of smartphones.
FM radio
no
This smartphone does not include an FM radio. 34.2% of smartphones offer FM radio functionality.
aptX Lossless
?
Show more
Height
163.7 mm
This smartphone has a height of 163.7 mm which is taller than 51.6% of smartphones and equal to that of 1.9% of smartphones.
Width
76.4 mm
This smartphone has a width of 76.4 mm which is wider than 60.7% of smartphones and equal to that of 2.2% of smartphones.
Thickness
7.8 mm
This smartphone has a thickness of 7.8 mm which is thinner than 77.4% of smartphones and equal to that of 4.2% of smartphones.
Weight
196 g
This smartphone weighs 196 g which is lighter than 50.1% of smartphones and equal to the weight of 2.3% of smartphones.
Device volume
86,716 cm³
This smartphone has a device volume of 86,716 cm³ which is smaller than 76.5% of smartphones and equal to that of 1.7% of smartphones.
Show more

Xiaomi Redmi K40 Pro (8GB + 256GB) vs the average smartphone

246810TotalPerformance & HardwareSoftwareCameraConnectivityDisplayBatteryAudioDesign
  • Better main camera video
    This smartphone records better main camera video than the average smartphone. 44.20x of smartphones support 4K or higher.
    4320x30 fps vs 2160x30 fps
  • Supports Dolby Vision support
    This smartphone supports Dolby Vision, the average smartphone does not. 17.3% of smartphones are Dolby Vision compatible.
  • Newer DDR memory version
    This smartphone supports a newer DDR version than the average smartphone (5 vs 4). The average DDR version is 4.
    5 vs 4
  • Higher contrast ratio
    This smartphone has a higher contrast ratio than the average smartphone (5000000:1 vs 1000000:1). The average smartphone contrast ratio is 1000000:1.
    AMOLED/OLED displays have an effectively infinite contrast ratio
    5,000,000:1 vs 1,000,000:1
  • Higher-resolution main camera
    This smartphone has a higher main camera resolution than the average smartphone (64 MP & 8 MP & 5 MP vs 50 MP & 8 MP). The average smartphone main camera has 50 MP & 8 MP megapixels.
    64 MP & 8 MP & 5 MP vs 50 MP & 8 MP
  • 50% higher touch sampling rate
    This smartphone has a higher touch sampling rate than the average smartphone (360 Hz vs 240 Hz). The average touch sampling rate is 240 Hz.
    360 Hz vs 240 Hz
  • Supports aptX Adaptive
    This smartphone supports aptX Adaptive, the average smartphone does not. 34.5% of smartphones include aptX Adaptive support.
  • Has a front LED flash
    This smartphone features a front-facing LED flash, the average smartphone does not. 7.8% of smartphones include a front flash.
  • Newer DDR memory version
    This smartphone supports a newer DDR version than the average smartphone (5 vs 4). The average DDR version is 4.
    5 vs 4
  • 18.3% higher CPU boost clock speed
    This smartphone has a higher CPU boost clock speed than the average smartphone (2.8 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    2.84 GHz vs 2.4 GHz
  • Higher CPU base clock speed
    This smartphone has a higher CPU base clock speed than the average smartphone (1x2.84 GHz & 3x2.42 GHz & 4x1.8 GHz vs 2x2.2 GHz & 6x2 GHz). The average smartphone has a base clock speed of 2x2.2 GHz & 6x2 GHz.
    1x2.84 GHz & 3x2.42 GHz & 4x1.8 GHz vs 2x2.2 GHz & 6x2 GHz
  • 19.9% higher PCMark Work 3.0 Performance benchmark
    This smartphone has a higher PCMark Work 3.0 performance score than the average smartphone (12,925 vs 10,783). The average score is 10,783.
    12,925 vs 10,783
  • 33.3% lower TDP
    This smartphone has a lower TDP than the average smartphone (8 W vs 6 W). The average TDP for smartphones is 6 W.
    8 W vs 6 W
  • 2x higher memory bandwidth
    This smartphone has higher memory bandwidth than the average smartphone (51.2 GB/s vs 25.6 GB/s). The average memory bandwidth is 25.6 GB/s.
    51.2 GB/s vs 25.6 GB/s
  • 16.7% smaller process node
    This smartphone uses a smaller process node than the average smartphone (5 nm vs 6 nm). The average process node size is 6 nm.
    5 nm vs 6 nm
  • 78.2% higher 3DMark Wild Life benchmark
    This smartphone scores higher in 3DMark Wild Life than the average smartphone (5,550 vs 3,115). The average smartphone scores 3,115.
    5,550 vs 3,115
  • 3x more shader units
    This smartphone features more shader units than the average smartphone (768 vs 256). The average smartphone has 256 shader units.
    768 vs 256
  • 22.9% higher Geekbench 6 single-core benchmark score
    This smartphone scores better in Geekbench 6 single-core than the average smartphone (1,158 vs 942). The average smartphone scores 942 in single-core.
    1,158 vs 942
  • Better processor
    This smartphone features a better processor than the average smartphone (Qualcomm Snapdragon 888 vs Qualcomm Snapdragon 7 Gen 3).
    Qualcomm Snapdragon 888 vs Qualcomm Snapdragon 7 Gen 3
  • 33.8% higher Geekbench 6 multi-core benchmark score
    This smartphone scores better in Geekbench 6 multi-core than the average smartphone (3,390 vs 2,533). The average smartphone scores 2,533 in multi-core.
    3,390 vs 2,533
  • 14.3% higher maximum RAM
    This smartphone supports more maximum RAM than the average smartphone (16 GB vs 14 GB). The average smartphone supports 14 GB RAM.
    16 GB vs 14 GB
  • 45.6% higher 3DMark Wild Life Unlimited benchmark
    This smartphone scores higher in 3DMark Wild Life Unlimited than the average smartphone (5,571 vs 3,825). The average smartphone scores 3,825.
    5,571 vs 3,825
  • 16.4% faster memory speed
    This smartphone supports faster memory speed than the average smartphone (3200 MHz vs 2750 MHz). The average smartphone supports 2750 MHz memory speed.
    3,200 MHz vs 2,750 MHz
  • Better main camera video
    This smartphone records better main camera video than the average smartphone. 44.20x of smartphones support 4K or higher.
    4320x30 fps vs 2160x30 fps
  • Higher-resolution main camera
    This smartphone has a higher main camera resolution than the average smartphone (64 MP & 8 MP & 5 MP vs 50 MP & 8 MP). The average smartphone main camera has 50 MP & 8 MP megapixels.
    64 MP & 8 MP & 5 MP vs 50 MP & 8 MP
  • Has a front LED flash
    This smartphone features a front-facing LED flash, the average smartphone does not. 7.8% of smartphones include a front flash.
  • Supports laser autofocus
    This smartphone features laser autofocus, the average smartphone does not. 21.4% of smartphones include laser AF.
  • 1 more flash LEDs
    This smartphone has more flash LEDs than the average smartphone (2 vs 1). The average smartphone has 1 flash LEDs.
    2 vs 1
  • Supports HDR10 video recording
    This smartphone supports HDR10 video recording, the average smartphone does not. 35.9% of smartphones support HDR10.
  • Has a dual-tone LED flash
    This smartphone features a dual-tone LED flash, the average smartphone does not. 41.4% of smartphones include dual-tone flash.
  • 28.1% larger main camera sensor area
    This smartphone has a larger main camera sensor area than the average smartphone (41 mm² vs 32 mm²). The average main camera sensor area is 32 mm².
    41 mm² vs 32 mm²
  • Higher front camera megapixels
    This smartphone has more front camera megapixels than the average smartphone (20 MP vs 16 MP). The average front camera has 16 MP megapixels.
    20 MP vs 16 MP
  • Newer Wi-Fi version
    This smartphone supports a newer Wi-Fi version than the average smartphone (Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)). The average smartphone uses Wi-Fi Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n).
    Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
  • Has a barometer
    This smartphone features a barometer, the average smartphone does not. 19.9% of smartphones include a barometer.
  • Has an infrared sensor
    This smartphone includes an infrared sensor, the average smartphone does not. 33.3% of smartphones feature an IR blaster.
  • Supports Dolby Vision support
    This smartphone supports Dolby Vision, the average smartphone does not. 17.3% of smartphones are Dolby Vision compatible.
  • Higher contrast ratio
    This smartphone has a higher contrast ratio than the average smartphone (5000000:1 vs 1000000:1). The average smartphone contrast ratio is 1000000:1.
    AMOLED/OLED displays have an effectively infinite contrast ratio
    5,000,000:1 vs 1,000,000:1
  • 50% higher touch sampling rate
    This smartphone has a higher touch sampling rate than the average smartphone (360 Hz vs 240 Hz). The average touch sampling rate is 240 Hz.
    360 Hz vs 240 Hz
  • 31.4% higher screen brightness
    This smartphone has a higher screen brightness than the average smartphone (867 nits vs 660 nits). The average smartphone brightness is 660 nits.
    867 nits vs 660 nits
  • 300 nits higher peak brightness
    This smartphone has a higher peak brightness than the average smartphone (1300 nits vs 1000 nits). The average peak brightness is 1000 nits.
    1,300 nits vs 1,000 nits
  • 10 min faster GSMArena full wired charge time
    This smartphone has a faster GSMArena full wired charge time than the average smartphone (52 min vs 62 min). The average charge time is 62 min.
    52 min vs 62 min
  • Supports aptX Adaptive
    This smartphone supports aptX Adaptive, the average smartphone does not. 34.5% of smartphones include aptX Adaptive support.
  • 1 more microphone/s
    This smartphone has more microphones than the average smartphone (3 vs 2). The average smartphone has 2 microphones.
    3 vs 2
  • Supports aptX
    This smartphone supports aptX, the average smartphone does not. 50% of smartphones are aptX compatible.
  • 0.5 mm thinner
    This smartphone is thinner than the average smartphone (7.8 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.
    7.8 mm vs 8.3 mm
  • No live text recognition
    This smartphone does not support live text recognition, the average smartphone does. 50.9% of smartphones offer real-time text recognition.
  • No memory card slot
    This smartphone does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
  • Lower IP rating
    This smartphone has a lower IP rating than the average smartphone (IP53 vs IP67). 0.00% of smartphones have a higher IP rating.
    IP53 vs IP67
  • Older Android version
    This smartphone runs an older Android version than the average smartphone (Android 11 vs Android 14). The average smartphone runs Android version Android 14.
    Android 11 vs Android 14
  • No reverse wired charging
    This smartphone does not support reverse wired charging, the average smartphone does. 60.8% of smartphones support reverse wired charging.
  • 9.6% smaller battery capacity
    This smartphone has a smaller battery capacity than the average smartphone (4520 mAh vs 5000 mAh). The average smartphone has a capacity of 5000 mAh.
    4,520 mAh vs 5,000 mAh
  • No scrolling screenshot support
    This smartphone does not support scrolling screenshots, the average smartphone does. 81.1% of smartphones allow scrolling screenshots.
  • 3 year/s older release date
    This smartphone is an older model than the average smartphone (2021 vs 2024). 3.00% of smartphones were released more recently.
    March 2021
    2021 vs 2024
  • 5.44x less popular
    Xiaomi Redmi K40 Pro (8GB + 256GB) is less popular than the average smartphone (1 vs 5.4).
    1 vs 5.44
  • 46.2% more expensive
    Xiaomi Redmi K40 Pro (8GB + 256GB) is more expensive than the average smartphone (£380 vs £260).
    £380 vs £260
  • No live text recognition
    This smartphone does not support live text recognition, the average smartphone does. 50.9% of smartphones offer real-time text recognition.
  • Older Android version
    This smartphone runs an older Android version than the average smartphone (Android 11 vs Android 14). The average smartphone runs Android version Android 14.
    Android 11 vs Android 14
  • No scrolling screenshot support
    This smartphone does not support scrolling screenshots, the average smartphone does. 81.1% of smartphones allow scrolling screenshots.
  • Does not allow play while downloading
    This smartphone cannot play games while downloading, the average smartphone can. 77.3% of smartphones support play-while-downloading.
  • No memory card slot
    This smartphone does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
  • No reverse wired charging
    This smartphone does not support reverse wired charging, the average smartphone does. 60.8% of smartphones support reverse wired charging.
  • 9.6% smaller battery capacity
    This smartphone has a smaller battery capacity than the average smartphone (4520 mAh vs 5000 mAh). The average smartphone has a capacity of 5000 mAh.
    4,520 mAh vs 5,000 mAh
  • Lower IP rating
    This smartphone has a lower IP rating than the average smartphone (IP53 vs IP67). 0.00% of smartphones have a higher IP rating.
    IP53 vs IP67
  • 3 year/s older release date
    This smartphone is an older model than the average smartphone (2021 vs 2024). 3.00% of smartphones were released more recently.
    March 2021
    2021 vs 2024
  • 0.4 mm wider
    This smartphone is wider than the average smartphone (76.4 mm vs 76 mm). The average smartphone has a width of 76 mm.
    76.4 mm vs 76 mm

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

C
cashify.in
22/08/2021
Summary of the review
G
go2android.de
11/04/2021
Summary of the review
C
china-gadgets.de
17/04/2021
Summary of the review
S
smartzone.de
31/03/2021
Summary of the review
M
m.alatest.fr
Date non spécifiée
Summary of the review

Verdict

The Xiaomi Redmi K40 Pro (8GB + 256GB) is a flagship-level smartphone with a powerful Qualcomm Snapdragon 888 processor and a smooth 6.67-inch 120Hz E4 AMOLED display. It features a versatile 64MP triple-camera system, a 20MP front camera, a 4520mAh battery with 33W fast charging, dual stereo speakers with Dolby Atmos, and 5G connectivity. However, some users have reported potential overheating issues during intense gaming, and the device lacks a 3.5mm headphone jack and wireless charging.

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