Xiaomi Redmi K40 vs realme X7

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Comparing the Xiaomi Redmi K40 vs realme X7 across performance, display, camera, battery and storage to help determine the better smartphone.

Here is the summary of the results:

Performance: Xiaomi Redmi K40 runs at a higher processing speed of 3.2 GHz, while realme X7 runs at 2.4 GHz, making Xiaomi Redmi K40 the better performer.


Display: Xiaomi Redmi K40 offers a screen size of 6.67 inches, while realme X7 offers 6.4 inches, making Xiaomi Redmi K40 the larger display of the two. Both Xiaomi Redmi K40 and realme X7 feature the same Super AMOLED display.


Rear Camera: realme X7 offers a higher rear camera resolution with 64 MP, while Xiaomi Redmi K40 offers 48 MP, making realme X7 better for rear camera photography.


Front Camera: Xiaomi Redmi K40 offers a higher front camera resolution with 20 MP, while realme X7 offers 16 MP, making Xiaomi Redmi K40 better for front camera photography.


Battery: Xiaomi Redmi K40 offers a higher battery capacity with 4520 mAh, while realme X7 offers 4310 mAh, making Xiaomi Redmi K40 better for longer battery life.


Storage: Both Xiaomi Redmi K40 and realme X7 offer the same internal storage of 128 GB.

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Xiaomi Redmi K40
₹22,490
(Not Released in India)
realme X7
₹8,899
(Out of Stock)
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Summary

Spec Score

83%
78%

Release Date

12 Jan, 2022
04 Feb, 2021

Performance

Snapdragon 870
MediaTek Dimensity 800U
Octa Core (upto 3.2 GHz)
Octa Core (upto 2.4 GHz)
6 GB RAM
6 GB RAM

Display

6.67 inches (16.94 cm)
6.4 inches (16.26 cm)
Super AMOLED
Super AMOLED
1080x2400 px (FHD+)
1080x2400 px (FHD+)
120 Hz Refresh Rate
60 Hz Refresh Rate

Rear Camera

48 MP
Wide Angle Primary Camera
64 MP
Wide Angle Primary Camera
8 MP
Ultra-Wide Angle Camera
8 MP
Ultra-Wide Angle Camera
5 MP
Macro Camera
2 MP
Macro Camera

Front Camera

20 MP
Wide Angle Lens
16 MP
Wide Angle Lens

Battery

4520 mAh
4310 mAh
33W Fast Charging
50W Super Dart Charging

Storage

128 GB
128 GB
UFS 3.1
UFS 2.1

Expert Review

N/A
7.0/10

Pros

  • Device yet to be reviewed
  • Nice AMOLED panel
  • Dimensity 800U has good power efficiency
  • Decent daylight camera

Cons

  • Device yet to be reviewed
  • GPU performance is lacking
  • Night mode needs more fine-tuning
  • Screen brightness could have been higher

User Ratings

N/A
4.3/5
(64,964 ratings)

Benchmarks (The higher, the better)

N/A
335,217
AnTuTu Score
N/A
14h 29m
Battery Life (PC Mark)

Video

There are no videos available for the device.
Videos
10 More Videos

User Feedback

General

Launch Date

N/A
Feb 04, 2021
(Official)

Operating System

Android v11
Android v10 (Q)

OS Updates

N/A
3 Year

Security Updates

N/A
5 Year

Custom UI

MIUI
Realme UI

Performance

Performance Rating

Very Good
Good

Chipset

Qualcomm Snapdragon 870
MediaTek Dimensity 800U MT6873V

Processor

Octa core

3.2 GHz, Single core, Kryo 585 2.42 GHz, Tri core, Kryo 585 1.8 GHz, Quad core, Kryo 585
Octa core

2.4 GHz, Dual core, Cortex A76 2 GHz, Hexa Core, Cortex A55

Architecture (The higher, the better)

64 bit
64 bit

Fabrication (The lower, the better)

7 nm
7 nm

Graphics (GPU)

Adreno 650
Mali-G57 MC3

RAM

6 GB
6 GB / 8 GB

RAM Type

LPDDR5
LPDDR4X

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

N/A
335,217

Bootup Time (The lower, the better)

N/A
20.0 s

Gaming Test Results

Battery Drain* (The lower, the better)

N/A
8.0 %

Heating* (The lower, the better)

N/A
43.5 %
* after 30 mins of gaming

Display

Display Rating

Excellent
Excellent

Display Type

Super AMOLED
Super AMOLED

Screen Size

6.67 inches  (16.94 cm)
6.4 inches  (16.26 cm)

Resolution

1080x2400 px (FHD+)
1080x2400 px (FHD+)

Brightness

1300 nits
600 nits

Refresh Rate

120 Hz
60 Hz

Aspect Ratio

20:9
20:9

Pixel Density

395 ppi
411 ppi

Screen to Body Ratio (calculated)

85.88 %
82.61 %

Screen Protection

Corning Gorilla Glass v5
Corning Gorilla Glass

Bezel-less Display

Yes with punch-hole display
Yes with punch-hole display

HDR 10 / HDR+ Support

Yes HDR 10+
N/A

Screen to Body Ratio (claimed by the brand)

N/A
90.8 %

Design

Height

163.7 mm
160.9 mm

Width

76.4 mm
74.4 mm

Thickness

7.8 mm
8.1 mm

Weight

196 grams
176 grams

Rear Camera

Rear Camera Rating

Very Good
Very Good

Resolution

48 MP
Primary Cameraf/1.79 Wide Angle26 mm focal length 1/2" sensor size IMX582 Exmor-RS CMOS Sensor 0.8µm pixel size
64 MP
Primary Camera10x Digital Zoomf/1.8 Wide Angle 80° field-of-view25.1 mm focal length 1/1.97" sensor size S5KGW3 ISOCELL Plus 0.8µm pixel size
8 MP
f/2.2 Ultra-Wide Angle Camera
8 MP
f/2.3 Ultra-Wide Angle Camera15.7 mm focal length 1/4.0" sensor size 1.12µm pixel size
5 MP
f/2.4 Macro Camera1/5.0" sensor size 1.12µm pixel size
2 MP
f/2.4 Macro Camera23.2 mm focal length 1/5.0" sensor size 1.65µm pixel size

Autofocus

Yes
Yes Phase Detection Autofocus

Flash

Yes LED Flash
Yes LED Flash

Image Resolution

8000 x 6000 Pixels
9000 x 7000 Pixels

Settings

Exposure compensation ISO control
Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus
10 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

3840x2160 @ 30 fps
1920x1080 @ 30 fps
4k @30 fps
Full HD @60 fps
HD @240 fps

Front Camera

Front Camera Rating

Very Good
Very Good

Resolution

20 MP
f/2.4 Wide Angle Primary Camera1/3.4" sensor size 0.8µm pixel size
16 MP
f/2.5 Wide Angle Primary Camera1/3" sensor size Exmor RS 1µm pixel size

Video Recording

1920x1080 @ 30 fps
Full HD @30 fps
HD @30 fps

Battery

Battery Rating

Very Good
Very Good

Capacity

4520 mAh
4310 mAh

Battery Type

Li-Polymer
Li-ion

Quick Charging

Yes 33W Fast Charging 100% in 52 minutes
Yes 50W Super Dart Charging 50% in 18 minutes

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

N/A
14h 29m

Charging Time (20% to 100%) (The lower, the better)

N/A
0h 50m 35s

Storage

Internal Storage

128 GB
128 GB

Storage Type

UFS 3.1
UFS 2.1

Expandable Storage

No
No

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano
SIM1: Nano SIM2: Nano

Network Support

5G 4G
5G 4G

VoLTE

Yes
Yes

SIM 1

5G Bands:
FDD N1 / N3 / N28
TDD N41 / N77 / N78
5G Bands:
FDD N1
TDD N41 / N77 / N78
4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)
View More

SIM 2

4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)

SAR Value

N/A
Head: 0.917 W/kg Body: 0.561 W/kg

Wi-Fi

Yes Wi-Fi 5 (802.11 b/g/n/ac) 5GHz
Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz

Wi-Fi Features

Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v5.1
Yes v5.1

GPS

Yes with A-GPS Glonass
Yes with A-GPS Glonass

NFC

Yes
N/A

Multimedia

Audio Jack

USB Type-C
USB Type-C

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Side
On-screen

Fingerprint Sensor Type

N/A
Optical

Other Sensors

Light sensor Proximity sensor Accelerometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer Gyroscope