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Xiaomi Redmi K40 Gaming Edition (12GB + 256GB) Review | 197 Data compared

Avg. price:~£300RAM capacity:12 GBInternal storage:256 GBScreen size:6.67 inchesMain camera megapixels:64 MP & 8 MP & 2 MP

Xiaomi Redmi K40 Gaming Edition (12GB + 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.

6.6/10

Overall score

Score
6.6/ 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
▼
<55-66-77-88-99-10
▼ Worse than 52% of models
Score components

90%

6.6

Technical score

10%

?

User score

▼Worse than 52% of smartphones
7.3

Value for money

Value for money
7.3/ 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
▼
<55-66-77-88-99-10
▼ Worse than 56% of models
Score components

70%

6.6

Overall score

30%

8.9

Price

▼Worse than 56%
6.6

Technical score

Technical score
6.6/ 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
▼
<55-66-77-88-99-10
▲ Better than 52% of models
Score components

25%

7.1

Performance & Hardware

18%

6.4

Camera

15%

7.3

Display

15%

6.4

Battery

10%

4.1

Software

10%

7.7

Connectivity

4%

7.8

Audio

3%

5.8

Design

▲Better than 52%
?

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
▼
<55-66-77-88-99-10
▼ Worse than 70% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

Based on ratings from across the web.
  • No image
No image
Where to buy
    N/A~ £300
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of smartphone Xiaomi Redmi K40 Gaming Edition (12GB + 256GB)

Technical score
Technical score
6.6/ 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
▼
<55-66-77-88-99-10
▲ Better than 52% of models
Score components:

25%

7.1

Performance & Hardware

18%

6.4

Camera

15%

7.3

Display

15%

6.4

Battery

10%

4.1

Software

10%

7.7

Connectivity

4%

7.8

Audio

3%

5.8

Design

6.6
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
▼
<55-66-77-88-99-10
▼ Worse than 70% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

Based on ratings from across the web.
?
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
▼
<55-66-77-88-99-10
▼ Worse than 99% of models
Popularity:
Xiaomi Redmi K40 Gaming Edition (12GB + 256GB) has a popularity of 1 point, which is lower than 63.9% of smartphones.
1.0
Value for money
Value for money
7.3/ 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
▼
<55-66-77-88-99-10
▼ Worse than 56% of models
Score components:

70%

6.6

Overall score

30%

8.9

Price

7.3
Brand name
Xiaomi
Processor model
MediaTek Dimensity 1200
This smartphone uses the MediaTek Dimensity 1200 processor which is faster than processors in 57.7% of smartphones and equal to processors in 0.2% of smartphones.
RAM capacity
12 GB
Market range: <4 GB – >16 GB
This smartphone has a RAM capacity of 12 GB which is larger than the RAM capacity of 59% of smartphones and equal to that of 24.3% of smartphones.
Internal storage
256 GB
Market range: <64 GB – >512 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
3 GHz
Market range: <2 GHz – >3.3 GHz
The CPU boost clock speed of this smartphone is 3 GHz which is higher than the boost speed of 75.3% of smartphones and equal to that of 3.7% 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.
Show more
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 & 2 MP
Market range: <10 – >100
This smartphone has a main camera resolution of 64 MP & 8 MP & 2 MP which is higher than that of 78.1% of smartphones and equal to that of 2.8% of smartphones.
Main camera aperture
f/1.7 & f/2.2 & f/2.4
This smartphone has a main camera aperture of f/1.7 & f/2.2 & f/2.4 which is wider than that of 83.7% of smartphones and equal to that of 2.1% of smartphones.
Main camera sensor area
31.4 mm²
Market range: <19.7 mm² – >71.4 mm²
This smartphone has a main camera sensor area of 31.4 mm² which is smaller than the main camera sensor area of 57.3% of smartphones and equal to that of 5.8% of smartphones.
Main camera pixel size
0.7 µm
Market range: <0.64 µm – >1.22 µm
This smartphone has a main camera pixel size of 0.7 µm which is smaller than in 64.6% of smartphones and equal to the size in 10.4% of smartphones.
Show more
Number of SIM slots
2
Market range: <1 – >6
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.
Show more
Screen size
6.67 inches
Market range: <6.3 inches – >6.82 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
Market range: <264 ppi – >460 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
Market range: <60 Hz – >144 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
5,065 mAh
Market range: <4k mAh – >7k mAh
This smartphone has a battery capacity of 5,065 mAh which is larger than the batteries in 59.1% of smartphones.
Charging speed
67 W
Market range: <15 W – >90 W
This smartphone supports charging speeds of 67 W which is faster than in 72.8% of smartphones and equal to speeds in 4.1% of smartphones.
Fast charging
yes
This smartphone supports fast charging. 93.1% of smartphones support fast charging.
GSMArena full wired charge time
42 min
Market range: <36 min – >120 min
This smartphone reaches a full wired charge in 42 min which is faster than 78.2% of smartphones and equal to the time of 2.2% of smartphones.
Wireless charging
no
This smartphone does not support wireless charging. 25.2% of smartphones support wireless charging.
Show more
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
Market range: <1 – >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
no
This smartphone does not support aptX Lossless. 12.9% of smartphones provide aptX Lossless.
Show more
Height
161.9 mm
Market range: <156.2 mm – >171.56 mm
This smartphone has a height of 161.9 mm which is shorter than 68.4% of smartphones and equal to that of 1% of smartphones.
Width
76.9 mm
Market range: <73.1 mm – >81 mm
This smartphone has a width of 76.9 mm which is wider than 70.6% of smartphones and equal to that of 1.6% of smartphones.
Thickness
8.3 mm
Market range: <7.53 mm – >10.5 mm
This smartphone has a thickness of 8.3 mm which is thinner than 44.7% of smartphones and equal to that of 6.1% of smartphones.
Weight
205 g
Market range: <175 g – >256 g
This smartphone weighs 205 g which is heavier than 65.7% of smartphones and equal to the weight of 1.5% of smartphones.
Device volume
97,888 cm³
Market range: <80 cm³ – >190 cm³
This smartphone has a device volume of 97,888 cm³ which is larger than 53.5% of smartphones and equal to that of 0.9% of smartphones.
Show more

Xiaomi Redmi K40 Gaming Edition (12GB + 256GB) vs the average smartphone

246810TotalPerformance & HardwareSoftwareCameraConnectivityDisplayBatteryAudioDesign
  • 66.7% lower TDP
    This smartphone has a lower TDP than the average smartphone (10 W vs 6 W). The average TDP for smartphones is 6 W.
    10 W vs 6 W
  • 4 GB more RAM
    This smartphone has more RAM capacity than the average smartphone (12 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    12 GB vs 8 GB
  • 2.03x faster charging speed
    This smartphone supports a faster charging speed than the average smartphone (67 W vs 33 W). The average charging speed is 33 W.
    67 W vs 33 W
  • 25% higher CPU boost clock speed
    This smartphone has a higher CPU boost clock speed than the average smartphone (3 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    3 GHz vs 2.4 GHz
  • 2x higher touch sampling rate
    This smartphone has a higher touch sampling rate than the average smartphone (480 Hz vs 240 Hz). The average touch sampling rate is 240 Hz.
    480 Hz vs 240 Hz
  • Supports Dolby Vision support
    This smartphone supports Dolby Vision, the average smartphone does not. 17.3% of smartphones are Dolby Vision compatible.
  • Supports HDR10+ support
    This smartphone supports HDR10+, the average smartphone does not. 22.2% of smartphones include HDR10+ support.
  • Supports HDR10 support
    This smartphone supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
  • 66.7% lower TDP
    This smartphone has a lower TDP than the average smartphone (10 W vs 6 W). The average TDP for smartphones is 6 W.
    10 W vs 6 W
  • 4 GB more RAM
    This smartphone has more RAM capacity than the average smartphone (12 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    12 GB vs 8 GB
  • 25% higher CPU boost clock speed
    This smartphone has a higher CPU boost clock speed than the average smartphone (3 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    3 GHz vs 2.4 GHz
  • Higher CPU base clock speed
    This smartphone has a higher CPU base clock speed than the average smartphone (1x3 GHz & 3x2.6 GHz & 4x2 GHz vs 2x2.2 GHz & 6x2 GHz). The average smartphone has a base clock speed of 2x2.2 GHz & 6x2 GHz.
    1x3 GHz & 3x2.6 GHz & 4x2 GHz vs 2x2.2 GHz & 6x2 GHz
  • 55.1% faster memory speed
    This smartphone supports faster memory speed than the average smartphone (4,266 MHz vs 2,750 MHz). The average smartphone supports 2,750 MHz memory speed.
    4,266 MHz vs 2,750 MHz
  • 2x more L3 cache
    This smartphone has more L3 cache than the average smartphone (8,192 KB vs 4,096 KB). The average L3 cache is 4,096 KB.
    8,192 KB vs 4,096 KB
  • 2.25x more shader units
    This smartphone features more shader units than the average smartphone (576 vs 256). The average smartphone has 256 shader units.
    576 vs 256
  • 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
  • 36.2% higher 3DMark Wild Life benchmark
    This smartphone scores higher in 3DMark Wild Life than the average smartphone (4,244 vs 3,115). The average smartphone scores 3,115.
    4,244 vs 3,115
  • 8.4% higher PCMark Work 3.0 Performance benchmark
    This smartphone has a higher PCMark Work 3.0 performance score than the average smartphone (11,688 vs 10,783). The average score is 10,783.
    11,688 vs 10,783
  • 25.1% higher Geekbench 6 multi-core benchmark score
    This smartphone scores better in Geekbench 6 multi-core than the average smartphone (3,170 vs 2,533). The average smartphone scores 2,533 in multi-core.
    3,170 vs 2,533
  • 11.9% higher Geekbench 6 single-core benchmark score
    This smartphone scores better in Geekbench 6 single-core than the average smartphone (1,054 vs 942). The average smartphone scores 942 in single-core.
    1,054 vs 942
  • Supports RAW photo capture
    This smartphone supports RAW photo capture, the average smartphone does not. 37.1% of smartphones allow RAW files.
  • Higher-resolution main camera
    This smartphone has a higher main camera resolution than the average smartphone (64 MP & 8 MP & 2 MP vs 50 MP & 8 MP). The average smartphone main camera has 50 MP & 8 MP megapixels.
    64 MP & 8 MP & 2 MP vs 50 MP & 8 MP
  • Supports Dolby Vision video recording
    This smartphone supports Dolby Vision video recording, the average smartphone does not. 10.7% of smartphones support Dolby Vision.
  • Allows manual shutter speed
    This smartphone allows manual shutter speed control, the average smartphone does not. 29.8% of smartphones include this.
  • Supports HDR10 video recording
    This smartphone supports HDR10 video recording, the average smartphone does not. 35.9% of smartphones support HDR10.
  • Wider main camera aperture
    This smartphone has a wider main camera aperture than the average smartphone (f/1.7 & f/2.2 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone has a main camera aperture of f/1.8 & f/2.2 & f/2.4 & f/2.4.
    f/1.7 & f/2.2 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
  • 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.
  • 2x higher touch sampling rate
    This smartphone has a higher touch sampling rate than the average smartphone (480 Hz vs 240 Hz). The average touch sampling rate is 240 Hz.
    480 Hz vs 240 Hz
  • Supports Dolby Vision support
    This smartphone supports Dolby Vision, the average smartphone does not. 17.3% of smartphones are Dolby Vision compatible.
  • Supports HDR10+ support
    This smartphone supports HDR10+, the average smartphone does not. 22.2% of smartphones include HDR10+ support.
  • Supports HDR10 support
    This smartphone supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
  • Has an always-on display
    This smartphone features an always-on display, the average smartphone does not. 49.2% of smartphones offer always-on functionality.
  • 2.03x faster charging speed
    This smartphone supports a faster charging speed than the average smartphone (67 W vs 33 W). The average charging speed is 33 W.
    67 W vs 33 W
  • 20 min faster GSMArena full wired charge time
    This smartphone has a faster GSMArena full wired charge time than the average smartphone (42 min vs 62 min). The average charge time is 62 min.
    42 min vs 62 min
  • 1.3% larger battery capacity
    This smartphone has a larger battery capacity than the average smartphone (5,065 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
    5,065 mAh vs 5,000 mAh
  • 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
  • 1.7 mm shorter
    This smartphone is shorter than the average smartphone (161.9 mm vs 163.6 mm). The average smartphone height is 163.6 mm.
    161.9 mm vs 163.6 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.
  • Lacks app tracking protection
    This smartphone does not have app tracking protection, the average smartphone does. 70.2% of smartphones include app tracking protection.
  • No location privacy controls
    This smartphone does not offer location privacy controls, the average smartphone does. 88% of smartphones include location privacy features.
  • Lacks focus mode
    This smartphone does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
  • 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
  • No camera/mic privacy toggles
    This smartphone lacks camera and microphone privacy toggles, the average smartphone includes them. 87% of smartphones offer these toggles.
  • 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
  • 5.44x less popular
    Xiaomi Redmi K40 Gaming Edition (12GB + 256GB) is less popular than the average smartphone (1 vs 5.4).
    1 vs 5.44
  • Worse processor
    This smartphone uses a worse processor than the average smartphone (MediaTek Dimensity 1200 vs Qualcomm Snapdragon 7 Gen 3).
    MediaTek Dimensity 1,200 vs Qualcomm Snapdragon 7 Gen 3
  • 26.2% lower 3DMark Steel Nomad benchmark
    This smartphone performs worse in 3DMark Steel Nomad than the average smartphone (449 vs 608). The average smartphone scores 608.
    449 vs 608
  • 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 location privacy controls
    This smartphone does not offer location privacy controls, the average smartphone does. 88% of smartphones include location privacy features.
  • Lacks app tracking protection
    This smartphone does not have app tracking protection, the average smartphone does. 70.2% of smartphones include app tracking protection.
  • Lacks focus mode
    This smartphone does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
  • No camera/mic privacy toggles
    This smartphone lacks camera and microphone privacy toggles, the average smartphone includes them. 87% of smartphones offer these toggles.
  • 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 Wi-Fi password sharing
    This smartphone does not support Wi-Fi password sharing, the average smartphone does. 57.9% of smartphones allow easy Wi-Fi sharing.
  • No battery health monitoring
    This smartphone lacks battery health monitoring, the average smartphone includes it. 66.3% of smartphones provide battery health stats.
  • Does not allow app offloading
    This smartphone does not support app offloading, the average smartphone does. 51.9% of smartphones support app offloading to save space.
  • Lacks instant markup
    This smartphone does not support instant markup, the average smartphone does. 52.2% of smartphones include instant markup tools.
  • No scrolling screenshot support
    This smartphone does not support scrolling screenshots, the average smartphone does. 81.1% of smartphones allow scrolling screenshots.
  • No theme customization
    This smartphone does not support theme customization, the average smartphone does. 91% of smartphones allow theme customization.
  • No offline voice commands
    This smartphone does not support offline voice commands, the average smartphone does. 90.4% of smartphones offer offline voice control.
  • 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 dynamic theme support
    This smartphone does not support dynamic themes, the average smartphone does. 81.9% of smartphones support dynamic theming.
  • Lacks extra dim mode
    This smartphone does not have extra dim mode, the average smartphone does. 82.5% of smartphones offer extra dimming features.
  • 0.1 µm smaller main camera pixel size
    This smartphone has a smaller main camera pixel size than the average smartphone (0.7 µm vs 0.8 µm). The average smartphone has a pixel size of 0.8 µm.
    0.7 µm vs 0.8 µm
  • Narrower front camera aperture
    This smartphone has a narrower front camera aperture than the average smartphone (f/2.4 vs f/2.2). The average smartphone front aperture is f/2.2.
    f/2.4 vs f/2.2
  • 1.9% smaller main camera sensor area
    This smartphone has a smaller main camera sensor area than the average smartphone (31.4 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
    31.4 mm² vs 32 mm²
  • No memory card slot
    This smartphone does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
  • 500 nits lower peak brightness
    This smartphone has a lower peak brightness than the average smartphone (500 nits vs 1,000 nits). The average smartphone peak brightness is 1,000 nits.
    500 nits vs 1,000 nits
  • 24.2% lower screen brightness
    This smartphone has a lower screen brightness than the average smartphone (500 nits vs 660 nits). The average smartphone has a brightness of 660 nits.
    500 nits vs 660 nits
  • 17.6% lower PCMark Work 3.0 battery benchmark
    This smartphone scores lower in PCMark Work 3.0 battery benchmark than the average smartphone (648 min vs 786 min). The average smartphone scores 786 min.
    648 min vs 786 min
  • 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.
    April 2021
    2021 vs 2024
  • 4.5% heavier
    This smartphone is heavier than the average smartphone (205 g vs 196.2 g). The average smartphone weighs 196.2 g.
    205 g vs 196.2 g
  • 0.9 mm wider
    This smartphone is wider than the average smartphone (76.9 mm vs 76 mm). The average smartphone has a width of 76 mm.
    76.9 mm vs 76 mm

Video reviews

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

8.0
gizmochina
≈ estimated
03/05/2021
Full review · benchmarks, camera, charging and battery tests
Verdict
The Xiaomi Redmi K40 Gaming Edition offers good gaming at a lower price, but missing Google services holds back buyers outside China.
9.0
Techy Ric
≈ estimated
30/04/2021
Camera test · video recorded on a moving bus
Verdict
Xiaomi Redmi K40 Gaming Edition has very good camera quality, with stable video even while moving.
8.0
Sami Luo Tech
≈ estimated
27/04/2021
First look · quick gaming hands-on and heat tests
Verdict
The Xiaomi Redmi K40 Gaming Edition has strong gaming performance and a big battery, but heat near the camera at high settings needs work.
Not graded
Overview video
Not graded
Overview video
Not graded
Not graded
Not graded
Hands-on video, no verdict
Shop video

Expert reviews

In-depth analysis and verdict from leading tech publications

M
muycomputer.com
28/04/2021
Summary of the review
Xiaomi Redmi K40 Gaming Edition features triggers, up to 12 GB of RAM, and a 120 Hz OLED panel
(Translated)Show original

Third-party reviews

Based on ratings from across the web.
Reviews last updated: November 2026 · How we calculate this

What customers like about Xiaomi Redmi K40 Gaming Edition (12GB + 256GB)

  • Exceptional gaming performance and overall speed with the MediaTek Dimensity 1200 CPU.
  • Effective cooling system prevents significant thermal throttling during extended gaming sessions.
  • Large 5,065mAh battery provides good life, with some users reporting 7-11 hours of mixed usage.
  • Very fast 67W wired charging (full charge in around 38-42 minutes).
  • High-quality 120Hz AMOLED display with great color distribution and narrow bezels for an immersive experience.
  • Tactile, retractable mechanical shoulder buttons enhance the gaming experience.
  • Excellent sound quality with JBL certification and Dolby Atmos support.
  • Premium build quality with an aluminum alloy frame and glass back.
  • Good value for money, offering near-flagship specs at a mid-range price point.
  • Aesthetically pleasing design, often highlighted for its unique gaming style and RGB lights.

What customers don't like about Xiaomi Redmi K40 Gaming Edition (12GB + 256GB)

  • Camera quality is a major weak point, with users describing photos and especially video recording as poor, particularly the selfie camera.
  • The phone can feel heavy and thick, making one-handed usage difficult.
  • Software optimization (MIUI) can be inconsistent and buggy, with performance issues and battery drain reported on certain Android versions (e.g., some Android 13 versions).
  • Lack of a 3.5mm headphone jack, which is a notable omission for a gaming-focused device.
  • No dedicated microSD card slot for storage expansion.
  • The front camera punch-hole design is considered a drawback for an immersive gaming screen by some users.
  • Some users report network connectivity issues with specific carriers in certain regions.
  • Inferior screen brightness compared to the non-gaming K40 variant.

Verdict

The Xiaomi Redmi K40 Gaming Edition is a powerful smartphone designed specifically for mobile gaming enthusiasts, featuring a high-performance MediaTek Dimensity 1200 processor and a smooth 120Hz 6.67-inch AMOLED display with HDR10+ support. Its core strengths include a substantial 12GB of RAM and 256GB of storage, a robust 5,065mAh battery with rapid 67W fast charging, a capable 64MP main camera, and crucial dedicated gaming features like physical pop-up shoulder triggers and JBL-tuned stereo speakers. Potential drawbacks often cited are the lack of a headphone jack and a less versatile camera system compared to dedicated photography-focused flagships.

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