Redmi K40S

  • Xiaomi
  • Last Updated: 6th June 2026
  • Overview
  • Specs
  • Comparisons
  • User Reviews
  • News
Advertisement
Key Specs
  • Display 6.67-inch (1080x2400)
  • Processor Qualcomm Snapdragon 870
  • Front Camera 20MP
  • Rear Camera 48MP + 8MP + 2MP
  • RAM 6GB, 8GB, 12GB
  • Storage 128GB, 256GB
  • Battery Capacity 4500mAh
  • OS Android
Market Status Released
Release Date 17th March 2022

Redmi K40S Summary

Redmi K40S mobile was launched on 17th March 2022. The phone comes with a 6.67-inch touchscreen display offering a resolution of 1080x2400 pixels and an aspect ratio of 20:9. Redmi K40S is powered by an octa-core Qualcomm Snapdragon 870 processor. It comes with 6GB, 8GB, 12GB of RAM. The Redmi K40S runs Android and is powered by a 4500mAh non-removable battery. The Redmi K40S supports Quick Charge 3.0 fast charging.

As far as the cameras are concerned, the Redmi K40S on the rear packs a triple camera setup featuring a 48-megapixel (f/1.8) primary camera; an 8-megapixel camera, and a 2-megapixel camera. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring a 20-megapixel sensor.

The Redmi K40S runs MIUI 13 is based on Android and packs 128GB, 256GB of inbuilt storage. The Redmi K40S is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and Nano-SIM cards. The Redmi K40S measures 163.20 x 75.95 x 7.70mm (height x width x thickness) and weighs 195.00 grams. It was launched in Aurora, Black, Green, Silver, and colours.

Connectivity options on the Redmi K40S include Wi-Fi 802.11 a/b/g/n/ac/ax, GPS, Bluetooth v5.20, NFC, Infrared, USB Type-C, 3G, 4G (with support for Band 40 used by some LTE networks in India) , and 5G. Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, gyroscope, proximity sensor, and in-display fingerprint sensor.

read more

Recommended Alternative

Available Variants
6GB RAM
128GB STORAGE
Redmi K40S (6GB,128GB)
8GB RAM
128GB STORAGE
Redmi K40S (8GB,128GB)
8GB RAM
256GB STORAGE
Redmi K40S (8GB,256GB)
12GB RAM
256GB STORAGE
Redmi K40S (12GB,256GB)

Redmi K40S Full Specifications

General
Brand Xiaomi
Model Redmi K40S
Release date 17th March 2022
Launched in India No
Form factor Touchscreen
Dimensions (mm) 163.20 x 75.95 x 7.70
Weight (g) 195.00
Battery capacity (mAh) 4500
Removable battery No
Fast charging Quick Charge 3.0
Colours Aurora, Black, Green, Silver,
Display
Screen size (inches) 6.67
Touchscreen Yes
Resolution 1080x2400 pixels
Aspect ratio 20:9
Hardware
Processor octa-core
Processor make Qualcomm Snapdragon 870
RAM 6GB, 8GB, 12GB
Internal storage 128GB, 256GB
Expandable storage No
Camera
Rear camera 48-megapixel (f/1.8) + 8-megapixel + 2-megapixel
No. of Rear Cameras 3
Rear autofocus Yes
Rear flash Yes
Front camera 20-megapixel
No. of Front Cameras 1
Software
Operating system Android
Skin MIUI 13
Connectivity
Wi-Fi Yes
Wi-Fi standards supported 802.11 a/b/g/n/ac/ax
GPS Yes
Bluetooth Yes, v 5.20
NFC Yes
Infrared Yes
USB Type-C Yes
Number of SIMs 2
SIM 1
SIM Type Nano-SIM
GSM/CDMA GSM
3G Yes
4G/ LTE Yes
5G Yes
Supports 4G in India (Band 40) Yes
SIM 2
SIM Type Nano-SIM
GSM/CDMA GSM
3G Yes
4G/ LTE Yes
5G Yes
Supports 4G in India (Band 40) Yes
Sensors
In-Display Fingerprint Sensor Yes
Compass/ Magnetometer Yes
Proximity sensor Yes
Accelerometer Yes
Ambient light sensor Yes
Gyroscope Yes
! Error or missing information? Please let us know

Redmi K40S Comparisons

OR
OR
Compare Redmi K40S With »

Redmi K40S User Review and Ratings

0
  • 5 ★
  • 4 ★
  • 3 ★
  • 2 ★
  • 1 ★
Write Your Review

Redmi K40S News

Other Xiaomi Phones

Need some help?
Mi service center near you
Price List
Best Mobile Phones
Popular Mobiles Brands
  1. Redmi Turbo 5 India Launch Date Revealed as Company Confirms Key Specs
  2. Sattendru Maarudhu Vaanilai Now Streaming Online: Where to Watch to Watch it?
  3. New OTT Releases This Week : Dhurandhar 2, Maa Behen, The Pyramid Scheme, and More
  4. OnePlus 15, Nord 6, Pad 4 Receive Discounts During Community Sale 2026
  5. Asics Refreshes GEL-Kayano Series With New Stability, Cushioning Upgrades
  6. Xiaomi Pad 8 Price Increased: Here's How Much It Costs Now
  1. Sahara Meteorite May Be Fragment of a Lost Moon-Sized World, Study Suggests
  2. OpenAI Introduces Smarter ChatGPT Memory, Adds Dreaming Architecture
  3. Tecno Pova 8 India Launch Date Announced; Battery Size, Design, Colour Options Teased
  4. Samsung Reportedly Starts Internal Testing of Android 17-Based One UI 9 for Galaxy S25 Series
  5. Bybit Lists Western Union’s USDPT Stablecoin for Trading and Transfers
  6. Xiaomi Pad 8 Price Hiked in India: Here’s How Much It Costs Now
  7. Instagram Reels Influencing Nearly Half of Purchase Decisions in India, Meta Study Claims
  8. OnePlus Turbo 6X, OnePlus Turbo 6X Pro Colour Options, Price Range, Key Specifications Teased
  9. Sattendru Maarudhu Vaanilai Now Streaming Online: Where to Watch Jai’s Romantic Thriller Movie
  10. Asics GEL-Kayano 33 Launched in India With New Stability Tech, FluidSupport System
Download Our Apps
Available in Hindi
© Copyright Red Pixels Ventures Limited 2026. All rights reserved.