Redmi K40S (8GB/256GB) parameters

Basic parameters
Domestic release time	March 17, 2022 error correction
E-commerce quotation	￥1558
Listing date	March 17, 2022 error correction
Use Scenarios	5G mobile phone> ， 4G mobile phones> ， 3G mobile phones> ， Smartphone> error correction
body material	Plastic middle frame, Glass rear shell>    View Appearance> error correction
body color	Bright black, silver trace, faint light, magic mirror View Appearance> error correction
fingerprint identification	Side fingerprint identification> error correction
Face recognition	support error correction

appearance
length	163.2mm error correction
width	75.95mm error correction
thickness	7.7mm error correction
weight	195g error correction

Hardware
CPU model	Qualcomm Snapdragon 870 More Qualcomm Snapdragon 870 mobile phones> ， Mobile performance ranking> error correction
CPU frequency	3.2Ghz A77*1+2.4GHz A77*3+1.8GHz A55*4 error correction
Number of CPU cores	Eight core> error correction
GPU model	Qualcomm Adreno650 error correction
RAM capacity	8GB> The game runs smoothly error correction
RAM storage type	LPDDR5> error correction
ROM capacity	256GB> 52000 photos 22000 songs error correction
ROM storage type	UFS 3.1> error correction
Memory card	Capacity expansion is not supported> error correction
Factory system kernel	Android 12 error correction
operating system	MIUI 13 error correction
Vibrating motor	X-axis linear motor error correction
speaker	Stereo dual speakers error correction

screen
Screen size	6.67 in error correction
Screen type	Full screen (central hole digging screen), Straight screen> error correction
Screen scale	20:9 error correction
resolving power	2400x1080px error correction
Screen material	AMOLED（E4）> error correction
Screen refresh rate	120Hz> error correction
Screen manufacturer	Samsung error correction
Pixel density	395ppi error correction
Screen proportion	85.88% error correction
HDR technology	HDR 10+> error correction
contrast ratio	5000000:1 error correction
Screen brightness	900nits global brightness, 1300nits peak brightness error correction
Screen technology	Corning's fifth generation gorilla glass error correction

camera
Total number of cameras	four error correction
Camera name	Rear main camera: main camera Rear ultra wide angle lens: ultra wide angle lens Rear telephoto macro lens: telephoto macro lens Front main camera: main camera error correction
pixel	Rear main camera: 48 million pixels Rear ultra wide angle lens: 8 million pixels Rear telephoto macro lens: 2 million pixels Front camera: 20 million pixels error correction
aperture	f/1.79 error correction
Sensor size	1/2 error correction
Shake Reduction	Rear main camera: OIS optical anti shake Rear long focus macro lens: OIS optical anti shake error correction
wide-angle	119° error correction
Post video capture	4K (3840 × 2160, 30 frames/s) video recording 1080p (1920 × 1080, 60 frames/s, 30 frames/s) video recording 720p (1280 × 720, 30 frames/s) video recording slow motion 1080p (1920 × 1080960 frames/s, 240 frames/s, 120 frames/s) video recording slow motion 720p (1280 × 720960 frames/s, 240 frames/s, 120 frames/s) video recording error correction
Front video capture	1080p (1920 × 1080, 30 frames/s) video recording 720p (1280 × 720, 30 frames/s) video recording slow motion 720p (1280 × 720120 frames/s) video recording error correction
Sensor type	Rear: 1/2 inch CMOS error correction
flash lamp	LED fill light> error correction

Network and connection
Network type	5G> ， 4G> ， 3G> error correction
Network band	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 error correction
SIM card type	Dual card (Nano SIM card)> error correction
WLAN function	Dual band WiFi, WiFi6 (IEEE 802.11 a/b/g/n/ac/ax), 2x2 MIMO, HE1601024 QAM, 8x8 Sound for MU-MIMO error correction
Bluetooth	Bluetooth 5.2, supporting AAC/LDAC/LHDC error correction
NFC	Support NFC (after the launch of the Tianxing Financial Wallet App, use functions such as Xiaomi bus, Mi Pay, door card, eID, electronic car key, etc. by double clicking the power button for public transport, mobile payment, mobile phone door opening, etc.) error correction
Infrared function	support error correction
Airframe interface	USB Type-C interface error correction

Battery and endurance
Battery type	Non removable battery error correction
Battery capacity	4500mAh Large battery error correction
Wired charging	67w error correction

Functions and services
a sensor	360 ° ambient light sensor, acceleration sensor, gyroscope, electronic compass, color temperature sensor, linear motor, infrared remote controller, ultrasonic distance sensor error correction

Phone accessories
Packing list	Mobile host x1 Power adapter x1 USB Type-C data cable x1 Mobile phone protective case x1 Film (already covered on the screen) x1 Pin x1 Instruction (including San Bao certificate) x1 error correction

Warranty Information
warranty policy	National joint insurance, enjoying three guarantees service error correction
Warranty period	1 year error correction
Warranty remarks	Host 1 year, battery 1 year, charger 1 year error correction
customer service telephone numbers	400-100-5678 error correction
Phone notes	Monday to Sunday: 8:00 - 18:00 (closing call only) error correction
Details	From the date of purchase (subject to the purchase invoice), if there is a quality problem or failure, you can return the goods within 7 days, replace the goods within 15 days, and enjoy free warranty and other three guarantee services within the warranty period with the quality inspection certificate of the manufacturer's maintenance center or special maintenance point! Note: Users who purchase mobile phone accessories separately, please keep the outer packaging of the accessories and the original invoice intact. If they cannot provide the above vouchers, they will not be able to carry out normal parts warranty or replacement. Enter the official website>>> error correction

*For reference only, please refer to the local actual product sales information; If the information is found to be incorrect, please complain