Xiaomi Redmi K40
+ Compare 81% SPEC
SCORE
SCORE
₨ 39,999
- Released March 2021
- OS Android 11
- Display 6.67" Super AMOLED
- Camera Triple Camera
- RAM 6GB / 8GB / 12GB
- Battery 4520mAh
PROS
- 1 6.67-inch Super AMOLED display with 120Hz refresh rate and HDR10+
- 2 Snapdragon 870 5G — a 2021 flagship chip
- 3 Triple rear camera led by a 48MP main sensor, with 4K video
- 4 33W fast charging (100% in 52 minutes)
- 5 Stereo speakers, NFC and an infrared port
CONS
- 1 No 5G launch in Pakistan — the phone was never officially sold here (import/remaining stock only)
- 2 No microSD card slot
- 3 No 3.5mm headphone jack
- 4 Android 11 is old and the phone launched in March 2021 (sold from remaining stock)
- 5 4520mAh battery is small by 2026 standards
Specification
Network
| Technology The mobile network technology the phone uses, such as GSM, HSPA or LTE. It determines which types of networks the phone can connect to. | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| Speed The data speed the phone can support on mobile networks. Higher speeds mean faster downloads and uploads when the network supports them. | HSPA, LTE-A, 5G |
Body
| Dimensions The height, width and thickness of the phone, usually measured in millimetres. Smaller dimensions generally make a phone easier to hold. | 163.7 x 76.4 x 7.8 mm |
| Weight How heavy the phone is, measured in grams. A lower weight generally makes a phone more comfortable to hold for long periods. | 196 g |
| SIM The SIM card type and number the phone accepts, such as Nano-SIM or dual SIM. It determines how many mobile connections can be used. | Dual SIM (Nano-SIM, dual stand-by) |
Display
| Type The kind of display panel used in the phone. Different panel types affect colour, contrast and power use. | Super AMOLED, 120Hz, HDR10+ |
| Size The diagonal size of the display, measured in inches from corner to corner. | 6.67 inches, 1080 x 2400 pixels (~395 ppi density) |
| Resolution The number of pixels in the display, shown as width by height. Higher resolution generally means a sharper image. | 1080 x 2400 pixels |
| Protection Protection applied to the display or body, such as strengthened glass or water and dust resistance ratings. | Corning Gorilla Glass 5 |
| Features Additional functions included for that part of the phone, such as special modes or enhancements. The list shows which extra functions are supported. | 1300 nits (peak) |
Platform
| OS The operating system software that runs the phone and its apps. Its version affects features, security and app compatibility. | Android 11, MIUI 12.2 |
| Chipset The main processor platform that powers the device. It controls performance, power efficiency and supported features. | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) |
| CPU The central processing unit that runs apps and tasks. More cores and higher clock speeds generally mean faster performance. | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) |
| GPU The graphics processing unit that handles images, video and games. A more capable GPU generally gives smoother graphics and gaming. | Adreno 650 |
Memory
| Card slot A special slot for inserting a memory card. Memory cards allow you to expand the phone's built-in memory (or in the past these slots have been used to add some missing features such as Wi-Fi connectivity). Memory cards have different capacities and are used to store and transfer files between compatible devices. There are several types of memory cards. The most popular and frequently used by mobile phone manufacturers is microSD; however, up until recently Sony Ericsson exclusively used the Memory Stick Micro (M2) card type developed by Sony. | No |
| Internal Storage The built-in storage space for apps, photos and files, measured in gigabytes. More storage lets you keep more content on the phone. | 128GB / 256GB UFS 3.1 |
| RAM The memory the phone uses to run apps and keep them open in the background, measured in gigabytes. More RAM generally helps multitasking run smoothly. | 6GB / 8GB / 12GB |
| Variant A phone variant is a specific model or version of a phone that differs slightly from other versions of the same phone from the same manufacturer. These differences can include variations in colors, sizes, features, specifications, or other attributes that distinguish one variant from another. For example, smartphones can have different storage capacities and colors, and different iPhone variants can have different cellular bands. | 6GB 128GB / 8GB 128GB / 8GB 256GB / 12GB 256GB |
Camera
| Triple A camera is a device that captures light and processes it into an image. It does this through a lens, which focuses the light onto a light-sensitive surface where a picture is formed. This could be film in traditional cameras or an electronic sensor in digital cameras. | 48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF 8 MP, f/2.2, 119° (ultrawide) 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm |
| Features Additional functions included for that part of the phone, such as special modes or enhancements. The list shows which extra functions are supported. | LED flash, HDR, panorama |
| Video The meaning of VIDEO CAMERA is a camera that records video and usually audio | Video: 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS |
| Selfie camera The front-facing camera used for self-portraits and video calls. Higher megapixels can give more detail, along with features such as autofocus or flash. | 20 MP, (wide), 1/3.4", 0.8µm |
More
| Loudspeaker The built-in speaker used for calls on speakerphone, music and videos. It states whether the phone has one and its type, such as stereo speakers. | Yes, with stereo speakers |
| 3.5mm jack A round headphone port for wired headphones and audio accessories. If present, wired audio can be used without an adapter. | No |
| WLAN The Wi-Fi standards the phone supports for wireless internet. Newer standards generally offer faster speeds and better connections. | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth A short-range wireless technology for connecting accessories such as headphones and speakers. A newer version generally offers better range, speed and power efficiency. | 5.0, A2DP, LE, aptX HD |
| GPS Satellite positioning used to find the phone location for maps and navigation. Support for more satellite systems can improve accuracy. | GPS, A-GPS, GLONASS, GALILEO, BDS |
| NFC Near Field Communication, a short-range wireless feature for contactless payments and quick pairing. It works only over very short distances. | Yes |
| FM radio Mobile phones that support FM radio have a dedicated FM radio receiver chip. This chip is responsible for receiving FM radio signals and converting them into audio signals that can be played through the phone's speakers or headphones. | No |
| USB The USB port used for charging and data transfer. Newer USB versions generally offer faster transfer speeds and a reversible connector. | USB Type-C 2.0, OTG |
| Infrared port An infrared (IR) port is a port on an electronic device that sends and receives data using infrared light. IR ports were commonly used in wireless devices to allow for fast communication with other devices, such as base stations. IR ports work by allowing two devices to face each other and share data using infrared rays within a range of 10 meters. | |
| Sensors Built-in sensors that detect motion, light, position and other conditions. They enable features such as auto-rotation, face unlock and navigation. | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum |
| Battery Type The kind of battery used in the phone and whether it can be removed. It describes the battery technology and form. | Li-Po 4520 mAh, non-removable |
| Battery Capacity The size of the battery, measured in milliamp-hours (mAh). A higher capacity usually means longer use between charges. | 4520 mAh |
| Charging How the battery is charged, including wired and wireless charging speeds in watts. Higher wattage usually means faster charging. | 33W wired, 100% in 52 min (advertised), Power Delivery 3.0, Quick Charge 3+ |
| Made by The company that makes the device. It names the manufacturer responsible for the phone. | China |
| Color The color options in which the phone is available. Color choice does not affect performance or features. | Black, White, Aurora |
| Models The specific model numbers or variants of the phone sold in different regions. Different models may vary in bands or storage. | M2012K11AC |
Disclaimer
We do not guarantee that the information of this page is 100% accurate and up to date. Read more
The Xiaomi Redmi K40 is a 2021 flagship-killer from Xiaomi, launched in China on 4 March 2021. It was never officially sold in Pakistan — its global twin is the Poco F3 — but it is available here as import and remaining stock. Its Snapdragon 870 chip, 120Hz Super AMOLED display and triple 48MP camera still make it a usable phone in 2026, at a price that has now fallen to Rs. 39,999.
Design and Display
- Display: 6.67-inch Super AMOLED display with a 120Hz refresh rate
- Brightness and HDR: HDR10+, 1300 nits peak brightness
- Resolution: 1080 x 2400 pixels, about 395 ppi
- Protection: Corning Gorilla Glass 5
- Notch: centre punch-hole at the top housing the 20MP front camera
- Size and weight: 163.7 x 76.4 x 7.8 mm, 196 g — slim for a 2021 flagship-killer
- Fingerprint sensor: side-mounted
- Speakers: stereo speakers
- Colours: Black, White, Aurora
Performance
- Chipset: Qualcomm Snapdragon 870 5G (SM8250-AC, 7 nm)
- CPU: Octa-core — 1x 3.2 GHz Kryo 585 + 3x 2.42 GHz Kryo 585 + 4x 1.80 GHz Kryo 585
- GPU: Adreno 650
- RAM: 6GB / 8GB / 12GB
- Storage: 128GB / 256GB (UFS 3.1)
- Card slot: no microSD card slot
- Software: Android 11 with MIUI 12.2
- Value: the Snapdragon 870 is a 2021 flagship chip — still fast for everyday use and gaming, but the phone launched on Android 11 and is sold as import/remaining stock
Camera
- Main: 48MP, f/1.8, 26mm (wide), 1/2″, 0.8µm, PDAF
- Ultrawide: 8MP, f/2.2, 119°
- Macro: 5MP, f/2.4, 50mm
- Selfie: 20MP, (wide), 1/3.4″, 0.8µm
- Video: 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS (main); 1080p@30fps, 720p@120fps (selfie)
Battery and Charging
- Battery: 4520mAh Li-Po battery
- Charging: 33W fast charging — 100% in 52 minutes (advertised), with Power Delivery 3.0 and Quick Charge 3+
- USB: Type-C 2.0 with OTG
- Honest note: 4520mAh is small by 2026 standards — a full day needs a top-up for heavy users
Software
- Operating system: Android 11 with MIUI 12.2
- Launch software: the phone launched with Android 11 in March 2021 — it is an old software base, and the write-up states this openly
Price in Pakistan
The Redmi K40 launched in China in March 2021 and was never officially sold in Pakistan (its global twin is the Poco F3). In Pakistan it is sold as import and remaining stock. zmobiles lists it at Rs. 39,999–49,999 depending on seller, variant, condition and PTA status — the Rs. 39,999 field price is the bottom of that condition-dependent range. The MobileDokan Unofficial row (36,500 BDT, about Rs. 81,999) is a stale Bangladesh import price from a page last updated in May 2024 and is not used. mymobile has no K40 page and WhatMobile’s K40 page is gone — zmobiles is the only live Pakistan price source.
8GB + 256GB — Rs. 39,999 (Expected)
| Model | Xiaomi Redmi K40 |
| Price | Rs. 39,999 |
| Display | 6.67″ Super AMOLED, 120Hz, 1080 x 2400 pixels |
| RAM | 8GB |
| ROM | 256GB |
| Released | 4 March 2021 |
Buying in Pakistan
- Check the IMEI and exact model number (M2012K11AC) before paying.
- Confirm the warranty — a 2021 phone sold as import/remaining stock carries shop warranty only, not official Xiaomi Pakistan warranty.
- Confirm PTA status via DIRBS — the price depends on PTA status, so confirm it before paying.
- Buy from a shop that still carries new, sealed stock and check the box and the phone’s condition carefully.
- Do not confuse it with the Poco F3 (its global twin) or the K40 Pro / K40 Gaming.
Final Verdict: A 2021 flagship-killer that still makes sense at Rs. 39,999 — if you find sealed stock
The K40’s Snapdragon 870, 120Hz Super AMOLED display and triple 48MP camera are still usable for everyday use and gaming at Rs. 39,999. But it is a March 2021 phone on Android 11, sold as import/remaining stock with no official Pakistan warranty — do not pay more than the zmobiles range, and do not expect new software. The MobileDokan conversion (81,999) is stale and would overpay.
