Xiaomi Redmi K40 Pro vs Redmi K40

Here we compared two flagship smartphones: the 6.67-inch Xiaomi Redmi K40 Pro (with Qualcomm Snapdragon 888) that was released on February 25, 2021, against the Xiaomi Redmi K40, which is powered by Qualcomm Snapdragon 870 5G. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi K40 Pro
  • Newer Bluetooth version (v5.2)
  • 17% better performance in AnTuTu Benchmark (802K versus 684K)
  • More recent OS version: Android 12 versus 11
  • More energy-efficient CPU – Snapdragon 888
  • 10% faster in single-core GeekBench 5 test: 1129 and 1023 points

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Super AMOLED Super AMOLED
Size 6.67 inches 6.67 inches
Resolution 1080 x 2400 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 395 ppi 395 ppi
Refresh rate 120 Hz 120 Hz
Max rated brightness 500 nits 500 nits
Max rated brightness in HDR 1300 nits 1300 nits
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 85.9% 85.9%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space 97.1% -
PWM 495 Hz -
Response time 3 ms -
Contrast ∞ Infinity -
Peak brightness test (auto)
860 nits
n/a
Sources: NotebookCheck [3]

Design and build

Height 163.7 mm (6.44 inches) 163.7 mm (6.44 inches)
Width 76.4 mm (3.01 inches) 76.4 mm (3.01 inches)
Thickness 7.8 mm (0.31 inches) 7.8 mm (0.31 inches)
Weight 196 gramm (6.91 oz) 196 gramm (6.91 oz)
Waterproof IP53 IP53
Rear material Glass Glass
Frame material Plastic Plastic
Colors White, Black White, Black
Fingerprint scanner Yes, in home button Yes, in home button
Screen-to-body ratio
85.9%

Performance

Tests of Xiaomi Redmi K40 Pro and Xiaomi Redmi K40 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 888 Qualcomm Snapdragon 870 5G
Max. clock 2840 MHz 3200 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4 cores at 1.8 GHz: Kryo 680 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 680 Gold (Cortex-A78)
- 1 core at 2.84 GHz: Kryo 680 Prime (Cortex-X1)
- 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77)
- 1 core at 3.2 GHz: Kryo 585 Prime (Cortex-A77)
L3 cache 4 MB 4 MB
Lithography process 5 nanometers 7 nanometers
Graphics Adreno 660 Adreno 650
GPU clock 840 MHz 675 MHz
FLOPS ~1720 GFLOPS ~1372 GFLOPS
Memory
RAM size 6, 8 GB 6, 8, 12 GB
Memory type LPDDR5 LPDDR5
Memory clock 2750 MHz 2750 MHz
Channels 4 4
Storage
Storage size 128, 256 GB 128, 256 GB
Storage type UFS 3.1 UFS 3.1
Memory card No No

Benchmarks

Geekbench 5 (Single-Core)
1129
1023
Geekbench 5 (Multi-Core)
3815
3488
AnTuTu Benchmark 9
802673
684842
CPU - 189456
GPU - 245190
Memory - 105041
UX - 151172
Total score 802673 684842
3DMark Wild Life Performance
5554
4261
Stability 94% 90%
Graphics test 33 FPS 25 FPS
Graphics score 5554 4261
PCMark 3.0 score 12205 12170
Sources: 3DMark [3], [4]

Software

Operating system Android 11 (Can be upgraded to Android 12) Android 11
ROM MIUI 13 MIUI 12.5 Enhanced

Battery

Specifications
Capacity 4520 mAh 4520 mAh
Charge power 33 W 33 W
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes (70% in 30 min) Yes (70% in 30 min)
Full charging time 0:50 hr 0:52 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 64 megapixels 48 megapixels
Image resolution 9216 x 6912 8000 x 6000
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording Up to 30FPS No
4K video recording Up to 60FPS Up to 30FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (1080p) 960 FPS (720p)
Angle of widest lens 119° 119°
Lenses 3 (64 MP + 8 MP + 5 MP) 3 (48 MP + 8 MP + 5 MP)
Wide (main) lens - 64 MP
- Aperture: f/1.9
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.7" (CMOS)
- Phase autofocus
- 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0" (CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
- 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
Macro lens - 5 MP
- Focal length: 50 mm
- Pixel size: 1.12 micron
- Sensor: 1/5.0" (CMOS)
- 5 MP
- Aperture: f/2.4
- Focal length: 50 mm
- Pixel size: 1.12 micron
- Sensor: 1/5.0" (CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 20 megapixels 20 megapixels
Image resolution 4608 x 3456 4608 x 3456
Aperture - f/2.5
Focal length 26 mm 26 mm
Pixel size 0.8 microns 0.8 microns
Sensor type CMOS CMOS
Sensor size 1/3.4" 1/3.4"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 5.1
Bluetooth features LE, HID, A2DP LE, HID, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo, NAVIC GPS, GLONASS, Beidou, Galileo, NAVIC
NFC* Yes Yes
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 20 20
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max. loudness
87.4 dB
n/a

Other

Category Flagship Flagship
Announced February 2021 February 2021
Release date March 2021 March 2021
Sensors - Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

These smartphones have a lot in common, but we would recommend the Xiaomi Redmi K40 Pro.

Cast your vote

So, which phone would you choose?
63 (40.4%)
93 (59.6%)
Total votes: 156

User opinions

You can share your opinion or ask a question in the comments below
Avatar
Rick 23 April 2021 15:41
K40 is the best phone to get if it is priced below INR25k, but k40 pro for the sole reason of getting SD 888 is also a good buy. I feel getting SD 888 is much better if you have the money to spend.
+3 Reply
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