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Xiaomi Redmi K40 Gaming
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Battery: 5065 mAh
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RAM: 6GB,8GB,12GB
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Storage: 128GB,256GB
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Display: OLED, 6.67 inches
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Camera: Rear 64 MP+8 MP+ 2 MP, and Front 16 MP
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OS: Android 11, MIUI 12.5
Full Specifications
Price
| Unofficial | 35999 BDT 8GB/256GB, 36999 BDT 12GB/256GB Approx. |
General
| Model | Xiaomi Redmi K40 Gaming |
| Announced | 2021, April 27 |
| Released | 2021, April 30 |
| Status | Available |
Design
| Dimensions | 161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in) |
| Weight | 205 g (7.23 oz) |
| 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) Physical pop-up gaming triggers IP53, dust and splash resistant |
| Colors | Black, Gray, Silver, Bruce Lee Yellow |
Display Specification
| Display Type Display Technology => A number of display technologies and types used in mobile phones => TFT (Thin Film Transistor), IPS (In-Place Switching), OLED (Organic Light Emitting Diode), AMOLED (Active-Matrix Organic Light-Emitting Diode), Super AMOLED (an even advanced version of AMOLED), Resistive Touchscreen (Resistive touchscreens contain two layer of conductive material with a very small gap between them which acts as a resistance), Capacitive Touchsceen (Capacitive touchscreen technology consists of a layer of glass coated with a transparent conductor) | OLED, 1B colors, 120Hz, HDR10+, 500 nits (typ) |
| Size | 6.67 inches, 107.4 cm2 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio |
| 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 |
| Display Protection Display Protection => Gorilla Glass is a special alkali-aluminosilicate glass shield with exceptional damage resistance that helps protect mobile displays from scratches, drops, and bumps of everyday use, It is always better to go for a smartphone with Gorilla Glass for that added protection and peace of mind. | Corning Gorilla Glass 5 |
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 12.5 |
| 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. | Mediatek Dimensity 1200 (6 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 (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) |
| 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. | Mali-G77 MC9 |
Main Camera
| Camera Setup | Triple |
| Resolution |
64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide) 2 MP, f/2.4, (macro) |
| Features | Dual-LED flash, HDR, panorama |
| Video | 4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR |
Selfie Camera
| Camera Setup | Single |
| Resolution | 16 MP, f/2.5, (wide), 1/3.06" 1.0µm |
| Video | 1080p@30fps, 720p@120fps, HDR |
| Features | HDR |
Network & Connectivity
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| Speed | HSPA, LTE, 5G |
| Wi-fi Wi-Fi is a popular wireless networking technology using radio waves to provide high-speed network connections that allows devices to communicate without cords or cables, Wi-Fi is increasingly becoming the preferred mode of internet connectivity all over the world. | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| 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. | 5.2, A2DP, LE |
| 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. | Yes |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC |
| FM Radio | No |
| Infrared port | Yes |
| USB | USB Type-C 2.0, OTG |
| 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 | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 |
| 5G Network | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 |
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. | Li-Ion (Lithium Ion) |
| 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. | Li-Po 5065 mAh, |
| Removable | No |
| Charging | 67W wired, PD3.0, QC3, 100% in 42 min (advertised) |
| Wireless 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. | No |
Multimedia
| Loudspeaker | Yes, with stereo speakers |
| Audio Jack | No |
| Audio Features |
24-bit/192kHz Hi-Res audio Tuned by JBL |
Storage
| 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 |
| Internal Storage 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. |
128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM UFS 3.1 |
Sensors
| Fingerprint | Yes (side-mounted) |
| Other Sensors | accelerometer, gyro, compass, barometer, color spectrum |
PROS
- Excellent value in its class: high refresh 120Hz OLED + strong chipset + 67W charging all in one.
- Gaming features built-in (triggers, stereo speakers) make it stand out among mid-range phones.
- Solid battery + fast charging means less downtime and more play time.
- 5G ready, which adds a layer of future-proofing for mobile networks.
- Premium build and display make it feel more up-market than many budget alternatives.
CONS
- No microSD card slot (storage not expandable).
- No 3.5 mm headphone jack – some users may miss wired audio convenience.
- It’s a 2021 model, so software updates and long-term support might be less robust than newer models.
- Some regional variants (especially China editions) may have firmware / services limitations (e.g., DRM, global band support) as flagged by user complaints.
About the Xiaomi Redmi K40 Gaming:
The Xiaomi Redmi K40 Gaming (also known as K40 Gaming Edition) is a performance-focused smartphone launched in April 2021 that targets gamers and power users. At its heart lies the ultra-efficient MediaTek Dimensity 1200 (6 nm) chipset, which delivers top-tier mid-range performance for 5G, multitasking, and gaming.
The device features a 6.67-inch OLED display with a 120 Hz refresh rate and HDR10+ support—ensuring smoother visuals, low motion blur, and a quality screen experience. Build and design are premium for its class: Gorilla Glass 5 on front and back, IP53 dust & splash protection, and gaming-specific touches such as side pop-up triggers. Camera-wise, the Redmi K40 Gaming sports a triple-rear setup (64 MP main + 8 MP ultra-wide + 2 MP macro), a 16 MP front camera, a 5,065 mAh battery with 67 W fast-charging, stereo speakers tuned by JBL, and 5G connectivity. For users in Bangladesh or nearby markets, this phone gives an impressive feature set that’s well-suited for gaming, media consumption, and general high-performance usage without entering the flagship price tier.
Main Key Features
- 6.67″ OLED display, resolution 1080×2400, 120 Hz refresh rate, HDR10+ support.
- MediaTek Dimensity 1200 5G chipset (6 nm process) — high performance for gaming and future-proof connectivity.
- Up to 12 GB RAM + 256 GB UFS 3.1 internal storage (various configurations).
- Triple rear cameras: 64 MP main, 8 MP ultra-wide, 2 MP macro; front 16 MP. Video recording up to 4K@30fps.
- 5,065 mAh battery with 67 W fast-charging (advertised full charge in around 42 minutes).
- Gaming-centric extras: pop-up L1/R1 triggers, stereo JBL-tuned speakers, IP53 protection, 5G, WiFi 6.
Why Choose This Phone?
If you’re seeking a smartphone in Bangladesh that offers high performance, gaming-friendly features, 120Hz smooth display, strong battery and fast-charging, and 5G connectivity—without paying flagship prices—then the Redmi K40 Gaming is a compelling choice. It hits a sweet spot for users who value speed, media/gaming experience, and display quality. For someone who streams, plays games, multitasks heavily, or wants a phone that will still feel “fast” a couple of years down the line, this model fits well. While it won’t match ultra-premium cameras or flagship build for the highest spend, for its price, it offers a lot of bang for the buck.
Opinions:
The Redmi K40 Gaming is a very smart pick for users who prioritise performance and experience over the absolute premium category. Some trade-offs exist, but if you pick a good variant, it offers significant value. For everyday use, whether you stream, game, browse, or shoot casual photos and rely on smooth display and connectivity, it delivers. For users who are very camera-obsessed, need ultra-long software lifespan, or require special niche features, you might look at a higher tier. But for most users seeking “best performance under budget” in 2025, this phone still holds up well.
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FAQs about Xiaomi Redmi K40 Gaming:
Q: What operating system does the Redmi K40 Gaming use?
A: It runs on MIUI 12.5, based on Android 11.
Q: Does the Redmi K40 Gaming support expandable storage?
A: No, it does not have a slot for expandable storage.
Q: What colors are available for the Redmi K40 Gaming?
A: The Redmi K40 Gaming is available in Black, Gray, Silver, and Yellow.
Q: How fast does the Redmi K40 Gaming charge?
A: It supports 67W fast charging, reaching 100% in approximately 42 minutes.
Q: Does the Redmi K40 Gaming have gaming-specific features?
A: Yes, it has dedicated gaming triggers and RGB lighting for a better gaming experience.
Q: What is the screen refresh rate of the Redmi K40 Gaming?
A: The display offers a 120Hz refresh rate for smooth visuals during gaming.
Q: Is the Redmi K40 Gaming water-resistant?
A: The Redmi K40 Gaming has an IP53 rating, providing limited dust and splash resistance.
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