Xiaomi Redmi K40S

Xiaomi Redmi K40S
Display
88
Performance
79
Battery
80
Camera
71
NanoReview score
80
Category Flagship
Announced March 2022
Release date March 2022

Full specifications

Detailed specifications, tests, and benchmarks of the Xiaomi Redmi K40S
88

Display

Type AMOLED
Size 6.67 inches
Resolution 1080 x 2400 pixels
Aspect ratio 20:9
PPI 395 ppi
Refresh rate 120 Hz
Max rated brightness 500 nits
Max rated brightness in HDR 1300 nits
HDR support Yes, HDR10+
Screen protection Corning Gorilla Glass 5
Screen-to-body ratio 86.6%
Display features - DCI-P3
- Always-On Display
- DC Dimming
75

Design and build

Height 163.2 mm (6.43 inches)
Width 75.95 mm (2.99 inches)
Thickness 7.7 mm (0.3 inches)
Weight 195 gramm (6.88 oz)
Waterproof IP53
Rear material Glass
Frame material Plastic
Colors Black, Gray, Blue, Green
Fingerprint scanner Yes, in home button
Screen-to-body ratio
86.6%
79

Performance

All specs and test Xiaomi Redmi K40S in the benchmarks
SoC
Chipset Qualcomm Snapdragon 870
Max. clock 3200 MHz
CPU cores 8 (1 + 3 + 4)
Architecture - 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
Lithography process 7 nanometers
Graphics Adreno 650
GPU clock 675 MHz
FLOPS ~1372 GFLOPS
Memory
RAM size 6, 8, 12 GB
Memory type LPDDR5
Memory clock 2750 MHz
Channels 4
Storage
Storage size 128, 256 GB
Storage type UFS 3.1
Memory card No

Benchmarks

Geekbench 5 (Single-Core)
1032
Geekbench 5 (Multi-Core)
3509
AnTuTu Benchmark 9
714772
CPU 186956
GPU 246714
Memory 126648
UX 151585
Total score 714772
3DMark Wild Life Performance
4294
Stability 99%
Graphics test 25 FPS
Graphics score 4294
PCMark 3.0 score 11560
Sources: 3DMark [3]
67

Software

Operating system Android 12
ROM MIUI 13
80

Battery

Specifications
Capacity 4500 mAh
Charge power 67 W
Battery type Li-Po
Replaceable No
Wireless charging No
Reverse charging No
Fast charging Yes (50% in 14 min)
Full charging time 0:39 hr
71

Camera

Specs and camera test of the Redmi K40S
Main camera
Matrix 48 megapixels
Image resolution 8000 x 6000
Zoom Digital
Flash Dual LED
Stabilization Optical
8K video recording No
4K video recording Up to 30FPS
1080p video recording Up to 60FPS
Slow motion 960 FPS (720p)
Angle of widest lens 119°
Lenses 3 (48 MP + 8 MP + 2 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Pixel size: 0.8 micron
- Sensor: 1/2.0", Sony IMX582 (Exmor-RS CMOS)
- Phase autofocus
- Optical stabilization
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
Macro lens - 2 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
Selfie camera
Megapixels 20 megapixels
Image resolution 4608 x 3456
Aperture f/2.5
Pixel size 0.8 microns
Sensor type Exmor-RS CMOS
Sensor size 1/2"
Video resolution 1080p (Full HD) at 30 FPS
87

Connectivity

Wi-Fi standard Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2
Bluetooth features LE, HID, A2DP
USB type USB Type-C
USB version 2
USB features - Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
NFC* Yes
Infrared port No
Network
Number of SIM* 2
Type of SIM card Nano
Multi SIM mode Standby
eSIM support* No
Hybrid slot No
LTE Cat* 20
2G network GSM 850 / 900 / 1800 / 1900MHz
3G network WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
4G network LTE B1 / B2 / B3 / B4 / B5 / B8 / B18 / B19 / B26 / B34 / B38 / B39 / B40 / B41 / B42
5G support Yes
85

Sound

Speakers Stereo
Headphone audio jack No
FM radio No
Dolby Atmos Yes

Other

Category Flagship
Announced March 2022
Release date March 2022
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Box* -
*Disclaimer! Some specifications of the Redmi K40S may differ by country or region

User ratings

4 of 5 points (45 votes)

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