OVERALL
ALTERNATIVES
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REVIEWS
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Xiaomi Redmi K40S (12GB + 256GB) Review | 197 Data compared

Avg. price:~£400RAM capacity:12 GBInternal storage:256 GBScreen size:6.67 inchesMain camera megapixels:48 MP & 8 MP & 2 MP

Xiaomi Redmi K40S (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.

7.3/10

Overall score

Score
7.3/ 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
â–² Better than 68% of models
Score components

90%

7.3

Technical score

10%

?

User score

â–²Better than 68% of smartphones
7.6

Value for money

Value for money
7.6/ 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
â–² Better than 66% of models
Score components

70%

7.3

Overall score

30%

8.4

Price

â–²Better than 66%
7.3

Technical score

Technical score
7.3/ 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
â–² Better than 69% of models
Score components

25%

7.3

Performance & Hardware

18%

7.4

Camera

15%

7.7

Display

15%

6.5

Battery

10%

7.2

Software

10%

7.4

Connectivity

4%

8.4

Audio

3%

6.0

Design

â–²Better than 69%
?

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
â–¼ Worse than 70% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image
Where to buy
    N/A~ £400
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 K40S (12GB + 256GB)

Technical score
Technical score
7.3/ 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
â–² Better than 69% of models
Score components:

25%

7.3

Performance & Hardware

18%

7.4

Camera

15%

7.7

Display

15%

6.5

Battery

10%

7.2

Software

10%

7.4

Connectivity

4%

8.4

Audio

3%

6.0

Design

7.3
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
â–¼ Worse than 70% of models
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
â–¼ Worse than 99% of models
Popularity:
Xiaomi Redmi K40S (12GB + 256GB) has a popularity of 1 point, which is lower than 63.9% of smartphones.
1.0
Value for money
Value for money
7.6/ 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
â–² Better than 66% of models
Score components:

70%

7.3

Overall score

30%

8.4

Price

7.6
Brand name
Xiaomi
Processor model
Qualcomm Snapdragon 870
This smartphone uses the Qualcomm Snapdragon 870 processor which is faster than processors in 72.4% of smartphones and equal to processors in 1.3% 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
3.2 GHz
Market range: <2 GHz – >3.3 GHz
The CPU boost clock speed of this smartphone is 3.2 GHz which is higher than the boost speed of 81.3% of smartphones and equal to that of 7.1% of smartphones.
Show more
Operating system
Android
This smartphone uses the Android operating system, which outperforms that of 1%.
Android 12
Android version
Android 12
This smartphone runs Android version Android 12 which is older than that found in 67.1% of smartphones and equal to that in 13.2% 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
48 MP & 8 MP & 2 MP
Market range: <10 – >100
This smartphone has a main camera resolution of 48 MP & 8 MP & 2 MP which is lower than that of 79.8% of smartphones and equal to that of 0.4% of smartphones.
Main camera aperture
?
Main camera sensor area
30.7 mm²
Market range: <19.7 mm² – >71.4 mm²
This smartphone has a main camera sensor area of 30.7 mm² which is smaller than the main camera sensor area of 63.5% of smartphones and equal to that of 6.3% of smartphones.
Main camera pixel size
0.8 µm
Market range: <0.64 µm – >1.22 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.
1.6 binned
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
4,500 mAh
Market range: <4k mAh – >7k mAh
This smartphone has a battery capacity of 4,500 mAh which is smaller than the batteries in 78.5% of smartphones and equal to those in 5.9% 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
?
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
?
Show more
Height
163.2 mm
Market range: <156.2 mm – >171.56 mm
This smartphone has a height of 163.2 mm which is shorter than 55.3% of smartphones and equal to that of 1.2% of smartphones.
Width
76 mm
Market range: <73.1 mm – >81 mm
This smartphone has a width of 76 mm which is narrower than 47.2% of smartphones and equal to that of 3.2% of smartphones.
Thickness
7.7 mm
Market range: <7.53 mm – >10.5 mm
This smartphone has a thickness of 7.7 mm which is thinner than 82.2% of smartphones and equal to that of 2.8% of smartphones.
Weight
195 g
Market range: <175 g – >256 g
This smartphone weighs 195 g which is lighter than 52.5% of smartphones and equal to the weight of 1.9% of smartphones.
Device volume
86,716 cm³
Market range: <80 cm³ – >190 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 K40S (12GB + 256GB) vs the average smartphone

246810TotalPerformance & HardwareSoftwareCameraConnectivityDisplayBatteryAudioDesign
  • Has optical image stabilization
    This smartphone has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
  • 33.3% higher CPU boost clock speed
    This smartphone has a higher CPU boost clock speed than the average smartphone (3.2 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    3.2 GHz vs 2.4 GHz
  • 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
  • Higher CPU base clock speed
    This smartphone has a higher CPU base clock speed than the average smartphone (1x3.2 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.
    1x3.2 GHz & 3x2.42 GHz & 4x1.8 GHz vs 2x2.2 GHz & 6x2 GHz
  • 6 more memory channels
    This smartphone has more memory channels than the average smartphone (8 vs 2). The average smartphone has 2 memory channels.
    8 vs 2
  • Supports Dolby Vision support
    This smartphone supports Dolby Vision, the average smartphone does not. 17.3% of smartphones are Dolby Vision compatible.
  • 3.7% better value for money
    Xiaomi Redmi K40S (12GB + 256GB) has better value for money than the average smartphone (7.61 vs 7.3).
    7.61 vs 7.34
  • 33.3% higher CPU boost clock speed
    This smartphone has a higher CPU boost clock speed than the average smartphone (3.2 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    3.2 GHz vs 2.4 GHz
  • 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
  • Higher CPU base clock speed
    This smartphone has a higher CPU base clock speed than the average smartphone (1x3.2 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.
    1x3.2 GHz & 3x2.42 GHz & 4x1.8 GHz vs 2x2.2 GHz & 6x2 GHz
  • 6 more memory channels
    This smartphone has more memory channels than the average smartphone (8 vs 2). The average smartphone has 2 memory channels.
    8 vs 2
  • 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
  • 71.9% higher memory bandwidth
    This smartphone has higher memory bandwidth than the average smartphone (44 GB/s vs 25.6 GB/s). The average memory bandwidth is 25.6 GB/s.
    44 GB/s vs 25.6 GB/s
  • 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
  • Better processor
    This smartphone features a better processor than the average smartphone (Qualcomm Snapdragon 870 vs Qualcomm Snapdragon 7 Gen 3).
    Qualcomm Snapdragon 870 vs Qualcomm Snapdragon 7 Gen 3
  • 6.9% higher PCMark Work 3.0 Performance benchmark
    This smartphone has a higher PCMark Work 3.0 performance score than the average smartphone (11,530 vs 10,783). The average score is 10,783.
    11,530 vs 10,783
  • Has optical image stabilization
    This smartphone has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
  • Supports RAW photo capture
    This smartphone supports RAW photo capture, the average smartphone does not. 37.1% of smartphones allow RAW files.
  • Uses a BSI sensor
    This smartphone uses a BSI sensor, the average smartphone does not. 40.5% of smartphones include BSI sensors.
  • Supports Dolby Vision video recording
    This smartphone supports Dolby Vision video recording, the average smartphone does not. 10.7% of smartphones support Dolby Vision.
  • Supports 360° panorama
    This smartphone can capture 360° panoramas, the average smartphone cannot. 25.2% of smartphones support 360° panoramas.
  • 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.
  • 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)
  • 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.
  • 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
  • Supports HDR10 support
    This smartphone supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
  • 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
  • 36.4% higher screen brightness
    This smartphone has a higher screen brightness than the average smartphone (900 nits vs 660 nits). The average smartphone brightness is 660 nits.
    900 nits vs 660 nits
  • 300 nits higher peak brightness
    This smartphone has a higher peak brightness than the average smartphone (1,300 nits vs 1,000 nits). The average peak brightness is 1,000 nits.
    1,300 nits vs 1,000 nits
  • 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
  • Higher GSMArena battery life endurance score
    This smartphone has a higher GSMArena battery life endurance score than the average smartphone (114 vs 99.5). The average endurance score is 99.5.
    114 vs 99.5
  • 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
  • 0.6 mm thinner
    This smartphone is thinner than the average smartphone (7.7 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.
    7.7 mm vs 8.3 mm
  • 29.5% slower GPU clock
    This smartphone has a lower GPU frequency than the average smartphone (670 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    670 MHz vs 950 MHz
  • 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.
  • Lower-resolution main camera
    This smartphone has a lower-resolution main camera than the average smartphone (48 MP & 8 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
    48 MP & 8 MP & 2 MP vs 50 MP & 8 MP
  • 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
  • 10% smaller battery capacity
    This smartphone has a smaller battery capacity than the average smartphone (4,500 mAh vs 5,000 mAh). The average smartphone has a capacity of 5,000 mAh.
    4,500 mAh vs 5,000 mAh
  • 16.7% larger process node
    This smartphone is manufactured on a larger process node than the average smartphone (7 nm vs 6 nm). The average smartphone uses a 6 nm process.
    7 nm vs 6 nm
  • 5.44x less popular
    Xiaomi Redmi K40S (12GB + 256GB) is less popular than the average smartphone (1 vs 5.4).
    1 vs 5.44
  • 53.9% more expensive
    Xiaomi Redmi K40S (12GB + 256GB) is more expensive than the average smartphone (£400 vs £260).
    £400 vs £260
  • 29.5% slower GPU clock
    This smartphone has a lower GPU frequency than the average smartphone (670 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    670 MHz vs 950 MHz
  • 16.7% larger process node
    This smartphone is manufactured on a larger process node than the average smartphone (7 nm vs 6 nm). The average smartphone uses a 6 nm process.
    7 nm vs 6 nm
  • 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.
  • Lacks app tracking protection
    This smartphone does not have app tracking protection, the average smartphone does. 70.2% of smartphones include app tracking protection.
  • Older Android version
    This smartphone runs an older Android version than the average smartphone (Android 12 vs Android 14). The average smartphone runs Android version Android 14.
    Android 12 vs Android 14
  • Lower-resolution main camera
    This smartphone has a lower-resolution main camera than the average smartphone (48 MP & 8 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
    48 MP & 8 MP & 2 MP vs 50 MP & 8 MP
  • 4.1% smaller main camera sensor area
    This smartphone has a smaller main camera sensor area than the average smartphone (30.7 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
    30.7 mm² vs 32 mm²
  • 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
  • No memory card slot
    This smartphone does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
  • 10% smaller battery capacity
    This smartphone has a smaller battery capacity than the average smartphone (4,500 mAh vs 5,000 mAh). The average smartphone has a capacity of 5,000 mAh.
    4,500 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
  • 2 year/s older release date
    This smartphone is an older model than the average smartphone (2022 vs 2024). 2.00% of smartphones were released more recently.
    March 2022
    2022 vs 2024

Video reviews

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

9.5
Critical Tech
≈ estimated
25/06/2022
Hands-on review · charging, battery and performance tests
Verdict
Xiaomi Redmi K40S offers excellent price and performance, though its ultra-wide camera and slowdown after 80 percent charge hold it back.
Hands-on video, no verdict
Not graded
Not graded
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Not graded yet
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Not graded yet

Third-party reviews

What customers like about Xiaomi Redmi K40S (12GB + 256GB)

  • Powerful Qualcomm Snapdragon 870 processor provides smooth performance for multitasking and high-end gaming.
  • Excellent 6.67-inch AMOLED display with a 120Hz refresh rate, good color accuracy, and high peak brightness.
  • Fast 67W wired charging capability, which can charge the 4500mAh battery to 100% in around 38-40 minutes.
  • Good battery life, with users reporting long screen time even with heavy use.
  • Inclusion of Optical Image Stabilization (OIS) on the 48MP main camera, which is an improvement over its predecessor.
  • Overall great value for its price point, offering flagship-level features in a mid-range package.
  • Useful extra features like dual speakers with Dolby Atmos support, NFC, dual frequency GPS, and an infrared remote control.
  • Sturdy build quality with Gorilla Glass 5 protection on the display.

What customers don't like about Xiaomi Redmi K40S (12GB + 256GB)

  • Camera quality is often criticized as a weak point, especially the selfie camera and performance in low light or video recording, with some users feeling it's a downgrade from other mid-range phones.
  • Software optimization (MIUI) can have occasional issues, such as inconsistent 120Hz performance in some apps and potential initial bugs that require software updates to fix.
  • Lack of wireless charging and no slot for a MicroSD card to expand storage.
  • The USB Type-C port is an older 2.0 version.
  • The 2MP macro camera is considered low-resolution and not very useful.
  • The phone's plastic back material is not preferred by some users, although others see it as a non-issue.

Verdict

The Redmi K40S (12GB + 256GB) is a powerful and storage-rich smartphone featuring a vibrant 6.67-inch AMOLED display with a 120Hz refresh rate, ideal for smooth visuals and gaming. It is powered by the capable Snapdragon 870 5G processor, ensuring fast performance across applications and tasks. Key pros include the sharp 48MP main camera system with OIS (Optical Image Stabilization) for steady shots, impressive 67W fast charging capability for its 4,500mAh battery, and robust memory configuration (12GB RAM, 256GB storage). A potential minor con for some users may be its plastic frame build or the absence of a microSD card slot for expandable storage.

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