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Redmi K40S（12GB/256GB）

Detailed parameters

Basic parameters
Released March 17, 2022
Product model
Announced March 17, 2022
Usage scenario 5G , 4G , 3G , Smart
Fuselage color Bright black, silver traces, ghostly light, illusion mirror
Fingerprint recognition Side fingerprint recognition
Face Recognition Support
Shape
Length 163.2mm
Width 75.95mm
Depth 7.7mm
Weight 195g
Hardware
CPU Qualcomm Snapdragon 870
RAM The 12GB game runs smoothly
Internal storage 256GB52,000 photos 22,000 songs
Memory card Capacity expansion is not supported
Expansion capacity
UI OS MIUI 13
loudspeaker Stereo dual speakers
Screen
Screen dimensions 6.67 inches
Screen type Full screen (middle hole screen), face screen
Display resolution 2400x1080px
Screen material AMOLED(E4)
Refresh rate 120Hz
Touch sampling rate
Screen Color
Camera
Total camera count 4
Camera name Rear main shot: Main shot Rear ultra-wide Angle lens: super wide Angle lens Rear telephoto macro lens: telephoto macro lens Front main shot: main shot
Pixel Rear main shot: 48 million pixels rear ultra-wide Angle lens: 8 million pixels rear telephoto macro lens: 2 million pixels front main shot: 20 million pixels
Aperture f/1.79
Focus
Focus Distance
Anti-shake Rear main camera: OIS optical image stabilization Rear telephoto macro lens: OIS optical image stabilization
Rear camera function
Rear video shooting 4K (3840×2160, 30 fps) video recording 1080p (1920×1080, 60 fps, 30 fps) video recording 720p (1280×720, 30 fps) video recording slow motion 1080p (1920× 1080, 960 fps, 240 fps, 120 fps) video recording Slow motion 720p (1280×720, 960 fps, 240 fps, 120 fps) video recording
Front camera function
Flash LED fill light
Zoom ratio
Network and Connectivity
WiFi Dual-band WiFi, WiFi6 (IEEE 802.11 a/b/g/n/ac/ax), 2x2 MIMO, HE160, 1024 QAM, 8x8 Sounding for MU-MIMO
Network frequency 2G：GSM 850/900/1800/1900MHz 2G：CDMA 1X BC0 3G：WCDMA B1/B2/B4/B5/B6/B8/B19 3G：CDMA EVDO BC0 4G：FDD-LTE B1/B2/B3/B4/B5/B7/B8/B18/B19/B26/B28A 4G：TDD-LTE B34/B38/B39/B40/B41/B42 5G：n1/n3/n28A/n41/n77/n78
Network technology 5G，4G，3G
SIM card Dual SIM card (Nano SIM card)>
GPS
Bluetooth Bluetooth 5.2, supports AAC/LDAC/LHDC
NFC Supports NFC (after opening the Tianxing Financial Wallet App, you can use Xiaomi Bus, Mi Pay, door cards, eID, electronic car keys and other functions by double-clicking the power button for public transportation, mobile payment, mobile phone door opening, etc.)
Infrared port support
USB USB Type-C interface
Battery
Battery type Non-removable battery
Battery capacity 4500mAh
Wired charging 67w
Wireless charging
Wireless reverse charging
Features and Services
Three prevention functions
Inductor 360° ambient light sensor, acceleration sensor, gyroscope, electronic compass, color temperature sensor, linear motor, infrared remote control, ultrasonic distance sensor
Other functions
Other information
CPU cores Octa core
GPU graphical controller Qualcomm Adreno650
RAM memory LPDDR5
ROM storage type UFS 3.1
Other hardware parameters
Pixel density 395ppi
HDR technology HDR 10+
Contrast 5000000:1
Screen brightness 900nits global brightness, 1300nits peak brightness
Screen technology Corning Gorilla Glass 5
Number of shots
Wide Angle 119°
Camera feature
Front video 1080p (1920×1080, 30 frames/second) video recording 720p (1280×720, 30 frames/second) video recording Slow motion 720p (1280×720, 120 frames/second) video recording
5G network
4G network
3G network
Other network parameters
Battery life
Audio formats
Video support
Build, materials Plastic middle frame, glass back shell
CPU frequency 3.2Ghz A77*1+2.4GHz A77*3+1.8GHz A55*4
System version Android 12
*For reference only, please refer to the actual local sales product information; If any information is found to be incorrect, please send us an email:Support@seemyphone.com

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