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Xiaomi Redmi K40

Xiaomi Redmi K40

৳36,500.00
Brand: Xiaomi
Category: Smartphones
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Released: 2021, March 04
OS: Android 11, MIUI 12.2
Display: 6.67" 1080x2400 pixels
Camera: 48MP 2160p
RAM: 6-12GB RAM Snapdragon 870 5G
Battery: 4520mAh Li-Po

Full Specifications and Price in Bangladesh

General Info

Announced	2021, February 25
Status	Available
Brand	Xiaomi
Model	Xiaomi Redmi K40
Color	Black, White, Aurora
Made by	China
Price	BDT. 36,500

Network

Technology	GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G Bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800
3G Bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1x
4G Bands	1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
5G Bands	1, 3, 28, 41, 77, 78 SA/NSA/Sub6
Speed	HSPA, LTE, 5G
GPRS GPRS (General Packet Radio Service) is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications (GSM), Generally, GPRS is used for the purpose of wireless data transfer, such as sharing pictures and videos or browsing the Internet via a mobile phone connection.
EDGE EDGE (Enhanced Data GSM Environment) is a wireless network technology generally considered the next step in the 2G network offers data transfer rates up to four times faster than ordinary GSM networks, Generally, EDGE is used for the purpose of wireless data transfer, such as sharing pictures and videos or browsing the Internet via a mobile phone connection.

Body

Dimensions	163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
Weight	196 g (6.91 oz)
Build	Glass front, plastic back, plastic frame
SIM SIM (Subscriber Identity Module) is a small card that contains mobile network subscriber's account information. This allows the phone using the card to attach to a mobile network. The SIM card is most commonly associated with GSM and UMTS mobile networks. Moving a SIM card from one phone to another allows a subscriber to switch mobile phones without having to contact their mobile network carrier. SIM cards can also be used by a phone to store limited amounts of data, such as phone numbers and text messages.	Dual SIM (Nano-SIM, dual stand-by)

Display

Type Design Type called form factor refers to a mobile phone's size, shape, and style as well as the layout and position of major components of phone. There are three major form factors seen in mobile phones => bar phones, folding phones and sliding phones.	Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Size	6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
Resolution	1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Refresh Rate	120Hz
Protection	Corning Gorilla Glass 5
Pixel Density Pixel Density (PPI) is refers to the concentration of pixels on a particular display, measured in pixels per inch (ppi). Pixel density is calculated by dividing the diagonal pixel resolution of a display by its diagonal size, higher pixel density better display quality.	395 ppi density
Multitouch
Features	- SMS(threaded view), MMS, Email, Push Email, IM - XviD/MP4/H.265 player - MP3/WAV/eAAC+/Flac player - Photo/video editor - Document viewer

Platform

Operating System OS => Every computer system run on a base software called Operating System (OS). Operating System controls all basic operations of the computer (such as smartphone, PDAs, tablet computers and other handheld devices). The Operating System allows the user to install and run third party applications (apps), apps are used to add new functionality to the device.	Android 11, MIUI 12
Chipset Chipset is a group of integrated circuits designed to perform one or a more dedicated functions, often with real time computing constraints, Popular smartphones are equipped with more advanced embedded chipsets that can do many different tasks depending on their programming.	Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU CPU (Central Processing Unit) mostly known as processors, CPU processes instructions in order to carry out certain functions that make your device operate properly. Processors are often described as the brain of computers, smartphones and tablets, Smartphones and tablets rely on processors to carry out their every task, Processors are an incredibly important factor in selecting any type of computing device, including your smartphone.	Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU GPU (Graphics Processing Unit) is a single-chip processor designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display, This includes things such as lighting effects, object transformations, and 3D motion.	Adreno 650

Memory

Card Slot Memory Card Slot is a special slot for inserting a memory card. Memory cards allow you to expand the phone's built-in memory, A memory card (sometimes called a flash memory card or a storage card) is a small storage medium used to store data such as text, pictures, audio, and video, for use on small, portable or remote computing devices such as mobile phones, mp3 players, digital cameras.	No
RAM RAM (Random Access Memory) is a type of computer memory that can be accessed randomly, any byte of memory can be accessed without touching the preceding bytes that allows information to be stored and accessed quickly from random locations. RAM is the most common type of memory found in computer systems, smartphones, tablets and other electronic devices.	6/8/12 GB
Internal Internal Storage is a data storage space (flash memory) mostly used in smartphones, tablets and other electronic devices where operating system, apps, music, photos, videos, files and other user data Is stored.	128/256 GB UFS 3.1

Main Camera

Camera Resolution	48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm
Camera Features	LED flash, HDR, panorama
Video Resolution	4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS

Selfie Camera

Camera Resolution	20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Camera Features	HDR
Video Resolution	1080p@30fps, 720p@120fps

Sound

Alert Types	Vibration, MP3, WAV ringtones
Loudspeaker	Yes, with stereo speakers
Audio Jack

Connectivity

WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth Bluetooth is a wireless communications technology for exchanging data between mobile phones, headsets, computers and other network devices over short distances without wires, Bluetooth technology was primarily designed to support simple wireless networking of personal consumer devices.	5.0, A2DP, LE, aptX HD
GPS GPS The Global Positioning System is a satellite-based radio navigation system, GPS permits users to determine their position, velocity and the time 24 hours a day, in all weather, anywhere in the world, In order to locate your position, your device or GPS receiver must have a clear view of the sky.	Yes, with A-GPS, GLONASS, GALILEO, BDS
NFC NFC (Near field communication) is a set of standards for smartphones and similar devices to establish peer-to-peer radio communications with each other by touching them together or bringing them into proximity, usually no more than a few inches.
Infrared port
FM Radio
USB	USB Type-C 2.0, USB On-The-Go

Features

Sensors Sensors are electronic components that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure and location, The output is generally a signal that is converted to use in computing systems, a location sensor, such as a GPS receiver is able to detect current location of your electronic device.	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum
Messaging	SMS(threaded view), MMS, Email, Push Email, IM
Browser Web Browser => a web browser is a software application used to locate, retrieve and display content on the World Wide Web, including Web pages, images, video and other files, The primary function of a web browser is to render HTML, the code used to design or markup webpages.	HTML5
Java

Battery

Battery Type Battery Type => Cell phones run on various kinds of batteries depending on the manufacturer, phone size or shape and features. There are basically four types of cell phone batteries => Lithium Polymer, Lithium Ion, Nickel Metal Hydride and Nickel Cadmium.	Non-removable Li-Po
Battery Capacity Battery Capacity is a measure (typically in Amp-hr) of the charge stored by the battery, and is determined by the mass of active material contained in the battery. The battery capacity represents the maximum amount of energy that can be extracted from the battery under certain conditions.	4520 mAh
Charging Wireless Charging (Inductive Charging) uses an electromagnetic field to transfer energy between two objects. This is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device.	Fast charging 33W, 100% in 52 min (advertised) Power Delivery 3.0 Quick Charge 3+
Fast Charging
Wireless Charging

Our Rating

The overall rating is based on review by our experts

8.1

Design 9 / 10
Display 7 / 10
Camera 7 / 10
Connectivity 8 / 10
Features 9 / 10
Performance 7 / 10
Battery 8 / 10
Usability 10 / 10

Xiaomi Redmi K40 Overview

The Xiaomi Redmi K40 is a budget-friendly flagship smartphone that offers impressive features and performance at a competitive price. Powered by the Qualcomm Snapdragon 870 chipset, the K40 delivers fast and smooth performance for gaming, multitasking, and heavy applications.

It features a 6.67-inch AMOLED display with a 120Hz refresh rate and HDR10+ support, ensuring vibrant colours and fluid visuals. The 48MP triple-camera system captures decent photos, especially in well-lit conditions. With a 4520mAh battery and 33W fast charging, the K40 provides long battery life and quick recharges.

The phone also comes with 5G connectivity, making it future-proof for faster network speeds. It’s a great option for users seeking flagship-level features without breaking the bank.

Price in Bangladesh

The Xiaomi Redmi K40 is priced at approximately BDT 36,500, offering excellent value for a smartphone with premium features.

Pro and Cons

Pros:

Solid Performance: Powered by the Snapdragon 870 chipset, the K40 offers smooth performance for gaming, multitasking, and daily tasks.
Smooth and Vibrant Display: The 6.67-inch AMOLED display with a 120Hz refresh rate delivers stunning visuals and fluid scrolling.
Good Camera Setup: The 48MP triple-camera system captures sharp and clear photos, especially in good lighting.
Fast Charging: The 33W fast charging ensures the 4520mAh battery charges quickly, reducing downtime.
5G Connectivity: Supports 5G networks, offering faster internet speeds and future-proofing.

Cons:

No Wireless Charging: The phone lacks wireless charging, a feature that is present in many competitors.
Average Low-Light Camera Performance: The camera performs well in daylight but struggles in low-light conditions.
No Expandable Storage: The phone does not support microSD card expansion, limiting storage options.

FAQs

1. What is the battery capacity of the Xiaomi Redmi K40?

The phone has a 4520mAh battery, providing long-lasting power for gaming, media, and daily use.

2. Does the Xiaomi Redmi K40 support fast charging?

Yes, the K40 supports 33W fast charging, allowing the battery to recharge quickly.

3. How is the display quality of the Xiaomi Redmi K40?

The phone features a 6.67-inch AMOLED display with a 120Hz refresh rate, offering smooth and vibrant visuals ideal for gaming and media consumption.

4. How is the camera performance on the Xiaomi Redmi K40?

The 48MP triple-camera system captures decent photos in daylight, though its low-light performance is average.

5. Does the Xiaomi Redmi K40 support 5G connectivity?

Yes, the Redmi K40 supports 5G, ensuring faster internet speeds and better network performance.

6. Can the storage be expanded on the Xiaomi Redmi K40?

No, the phone does not support expandable storage via microSD cards, so users are limited to internal storage options.

Reason to Buy

Flagship Performance at a Mid-Range Price: The Snapdragon 870 chipset ensures smooth performance for gaming and multitasking without the high price tag of flagship devices.
Vibrant and Smooth Display: The 120Hz AMOLED display provides a stunning visual experience for gaming, media, and general use.
Good Battery Life with Fast Charging: The 4520mAh battery ensures long-lasting use, and the 33W fast charging reduces the time spent waiting for the phone to recharge.
5G Ready: The phone’s 5G support ensures faster network speeds and future-proofing as 5G becomes more widely available.
Great Value for Money: The K40 offers a premium experience at a more affordable price, making it ideal for users looking for flagship features at a lower cost.

The Xiaomi Redmi K40 is an excellent option for users looking for a well-rounded smartphone with flagship-level performance, a great display, and 5G connectivity at a mid-range price. Its combination of features makes it one of the best value-for-money smartphones in its category.