Xiaomi Redmi K40S

Xiaomi Redmi K40S
Brand: Xiaomi
Category: Smartphone
  • Released: 17 March 2022
  • OS: Android 12
  • Display: 6.67 Inches
  • Camera: 48 MP + 8 MP + 2 MP (Rear) & 20 MP (Front)
  • RAM: 6 GB, 8 GB & 12 GB
  • Storage: 128 GB & 256 GB
  • Battery: 4500 mAh

Price in Bangladesh 2024 & Full Specifications

Basic Info

Announced 17 March 2022
Launch Date 17 March 2022
Status Not Available
Brand Xiaomi
Model Redmi K40S
Color Black, Gray, Blue & Green
Price In Bangladesh 6/128 GB - BDT 26,000 Taka
8/128 GB - BDT 28,000 Taka
8/256 GB - BDT 31,490 Taka
12/256 GB - BDT 35,000 Taka


Chipset Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
OS Android 12
CPU Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU Adreno 650


Dimensions 163.2 x 76 x 7.7 mm
Weight 195 Grams
Build Plastic Frame & Back, Glass Front
SIM Dual Nano SIM (Dual Stand-By)


Size 6.67 Inches
Resolution 1080 x 2400 Pixels
Refresh Rate 120Hz
Protection Corning Gorilla Glass 5
Pixel Density 395 ppi
Features HDR10+ & 1300 nits (peak)

Main Camera

Resolution 48 MP (Wide)
8 MP (Ultrawide)
2 MP (Macro)
Video Resolution 4K@30fps, 1080p@30/60/120fps & 720p@960fps
AutoFocus Yes
Flash Yes, LED Flash

Selfie Camera

Resolution 20 MP (Wide)
Video Resolution 1080p@30/120fps


Internal 128 GB & 256 GB
RAM 6 GB, 8 GB & 12 GB
Memory Card Slot microSDXC
External Card Slot


Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G Network GSM 850 / 900 / 1800 / 1900 - (SIM 1 & SIM 2) & CDMA 800
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 & CDMA2000 1x
4G Network LTE
5G Network SA/NSA
Speed HSPA, LTE-A & 5G


WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band & Wi-Fi Direct
Wi-Fi Hotspot
Bluetooth Yes (5.2, A2DP, LE)
FM radio NO
USB USB Type-C v2.0, On-The-Go


Sensors Fingerprint (Side-Mounted), Gyroscope, Color Spectrum, Accelerometer, Compass & Proximity
Messaging SMS (Threaded View), MMS, Email, Push Email & IM
Browser HTML5
Alert types Ringtones & Vibration
Audio Jack 3.5mm Jack Not Available


Battery type Non-Removable (Li-Po)
Fast Charging
Battery Capacity 4500 mAh
Charging 67W
Charging Time 100% in Just 38 min (Advertised)
Wireless Charging

Our Rating

The overall rating is based on a review by our experts

  • Features 7 / 10
  • Camera 8 / 10
  • Performance 7 / 10
  • Display 8 / 10
  • Design 6 / 10
  • Usability 7 / 10
  • Connectivity 8 / 10
  • Battery 8 / 10

Xiaomi Redmi K40S Price in Bangladesh

The price of Xiaomi Redmi K40S in Bangladesh is BDT 26,000 Taka and this price is only set for its 6/128 GB RAM/ROM variant.

6/128 GB BDT 26,000 Taka
8/128 GB BDT 28,000 Taka
8/256 GB BDT 31,490 Taka
12/256 GB BDT 35,000 Taka

This mobile also has more variants whose prices are also listed above.

Xiaomi Redmi K40S Features

This mobile phone was released on March 17, 2022, and this is a mid-range smartphone that combines performance, camera quality, and display excellence.

This device is designed for users seeking a balanced smartphone experience without a high price tag.


Redmi K40S is notable for its AMOLED display, triple camera setup, and powerful Qualcomm Snapdragon 870 5G chipset, making it an attractive choice for tech enthusiasts and photography lovers.


The phone features a 6.67-inch AMOLED display with a resolution of 1080 x 2400 pixels, resulting in a pixel density of approximately 395 PPI.

The screen-to-body ratio is around 86.6%, providing an expansive and immersive viewing experience.

The display supports HDR10+ and has a peak brightness of 1300 nits, ensuring excellent visibility and vibrant colors.


Xiaomi Redmi K40S boasts a triple camera system on the back, including a 48 MP wide-angle main camera, an 8 MP ultrawide lens, and a 2 MP macro camera.

It supports 4K@30fps and 1080p@30/60/120fps video recording with gyro-EIS. The selfie camera is a 20 MP wide sensor, capable of recording 1080p videos.


In terms of connectivity, the device supports GSM, CDMA, HSPA, CDMA2000, LTE, and 5G networks. It includes Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, Bluetooth 5.2, GPS, NFC, and a USB Type-C 2.0 port.


Powered by the Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) chipset, the Redmi K40S runs on Android 12 with MIUI 13. It has an Octa-core CPU and an Adreno 650 GPU, ensuring smooth performance for everyday tasks and gaming.


The device measures 163.2 x 76 x 7.7 mm and weighs 195 g. It features a glass front (Gorilla Glass 5), and a plastic back, and is splash-resistant. The phone supports Dual SIM (Nano-SIM, dual stand-by).


Redmi K40S comes with various storage options: 128GB with 6GB RAM, 128GB with 8GB RAM, 256GB with 8GB RAM, and 256GB with 12GB RAM, all using UFS 3.1 technology.

It does not feature a microSDXC slot for expandable storage.


One of the key features of this phone is its Li-Po 4500 mAh non-removable battery, which supports 67W wired charging, capable of charging the phone to 100% in just 38 minutes as advertised.

Xiaomi Redmi K40S stands out as a solid mid-range option in the smartphone market, offering a combination of performance, camera quality, and display excellence for everyday use.

Disclaimer Note

We do not say that all the information provided in this page is fully accurate and up to date.

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