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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
General
| Model | Xiaomi Redmi K40 Gaming |
| Announced | 2021, April 27 |
| Released | 2021, April 30 |
| Status | Available |
Price
| Unofficial | 35999 BDT 8GB/256GB, 36999 BDT 12GB/256GB Approx. |
Design
| Dimensions The Dimensions section shows the phone’s physical size in Height × Length × Width (H × L × W) format, along with its volume, when available. For flip phones, the dimensions are measured with the flip closed. This information helps users understand the phone’s overall size, thickness, portability, and how comfortably it may fit in the hand or pocket. | 161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in) |
| Weight The Weight section shows the total weight of the phone, usually measured in grams (g). It helps users understand how light or heavy the device feels during everyday use and carrying. For phones with different designs or configurations, the listed weight may vary depending on the materials, battery, and other hardware components. | 205 g (7.23 oz) |
| SIM The SIM section provides details about the phone’s supported SIM configuration, including SIM type, number of SIM slots, and eSIM support, where available. It may specify options such as Nano-SIM, Single SIM, Dual SIM, or Hybrid Dual SIM. This information helps users understand how the phone handles multiple mobile numbers and which SIM format is required. For Dual SIM devices, the section may also indicate whether both SIMs can remain active simultaneously and support mobile network connectivity. |
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 The Display Type section identifies the technology used for the phone’s screen, such as IPS LCD, AMOLED, OLED, or LTPO AMOLED. It helps users understand the display’s overall visual quality, including color reproduction, contrast, brightness, viewing experience, and power efficiency. The display type is an important specification when comparing smartphone screens. | OLED, 1B colors, 120Hz, HDR10+, 500 nits (typ) |
| Size The Display Size section shows the diagonal size of the phone’s screen, usually measured in inches. It helps users understand the available viewing area and overall screen experience. A larger display is generally better for watching videos, gaming, and browsing, while a smaller display can offer easier handling and portability. | 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 |
Storage
| Card Slot The Storage Card Slot section indicates whether the phone supports an external memory card, such as a microSD card, for expanding storage. It shows users whether they can add extra space for apps, photos, videos, and other files beyond the phone’s built-in storage. If the phone does not support a memory card, it will be listed as Not Supported. | No |
| Internal Storage The Internal Storage section shows the built-in storage capacity available on the phone, usually measured in GB. It determines how much space is available for apps, photos, videos, documents, and other files. Phones may come with different storage options, such as 128GB, 256GB, or 512GB, depending on the model and variant. |
128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM UFS 3.1 |
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 |
Platform
| Operating System The Operating System (OS) section shows the software platform that powers the phone and manages its hardware, apps, and system features. It typically includes the OS name and version, such as Android or iOS, and may also mention the manufacturer’s custom user interface. This information helps users understand the phone’s software experience, features, compatibility, and available updates. | 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 |
Battery
| Battery Type The Battery Type section identifies the technology and design of the phone’s built-in battery, such as Li-Ion (Lithium-Ion) or Li-Po (Lithium-Polymer). It helps users understand the type of battery used to power the device and provides a basic overview of its battery technology. | Li-Ion (Lithium Ion) |
| Capacity The Battery Capacity section shows the amount of electrical charge the phone’s battery can store, usually measured in mAh (milliampere-hours). A higher capacity generally provides more energy for everyday use, although actual battery life also depends on the display, processor, software, network usage, and other hardware components. | 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 The Loudspeaker section indicates the type and configuration of the phone’s built-in speakers, such as single or stereo speakers. It helps users understand the device’s audio output for calls, music, videos, gaming, and other multimedia activities. Some phones may also include additional audio features for a better listening experience. | Yes, with stereo speakers |
| Audio Jack The Audio Jack section indicates whether the phone includes a dedicated 3.5mm headphone jack for connecting wired headphones, earphones, or external audio devices. If the phone does not have a traditional audio jack, users may need USB Type-C headphones or an adapter for wired audio. The specification helps users quickly check the phone’s compatibility with their preferred audio accessories. | No |
| Audio Features |
24-bit/192kHz Hi-Res audio Tuned by JBL |
Sensors
| Fingerprint | Yes (side-mounted) |
| Other Sensors | accelerometer, gyro, compass, barometer, color spectrum |
Network & Connectivity
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| Speed | HSPA, LTE, 5G |
| Wi-fi The Wi-Fi section shows the wireless networking technologies and standards supported by the phone for connecting to the internet and other compatible devices. It may include standards such as Wi-Fi 4, Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E, or Wi-Fi 7, along with features like dual-band, tri-band, Wi-Fi Direct, and hotspot support, where available. This information helps users understand the phone’s wireless connectivity, network compatibility, speed capabilities, and connection features. | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Bluetooth The Bluetooth section shows the wireless communication technology and version supported by the phone, such as Bluetooth 5.0, 5.1, 5.2, 5.3, or 5.4. It enables the phone to connect wirelessly with headphones, speakers, smartwatches, keyboards, cars, and other compatible devices. Where available, this section may also mention features such as A2DP, LE, aptX, or other Bluetooth audio and connectivity technologies. | 5.2, A2DP, LE |
| NFC The NFC (Near Field Communication) section indicates whether the phone supports short-range wireless communication between compatible devices. NFC can be used for contactless payments, quick device pairing, data sharing, access cards, and other NFC-enabled services, depending on the phone and region. This specification helps users check whether the device supports convenient tap-to-connect and contactless features. | 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 The 2G Network section shows whether the phone supports second-generation mobile networks, including GSM, GPRS, and EDGE technologies. It provides basic connectivity for voice calls, SMS, and limited mobile data services where 2G networks are available. |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 |
| 3G Network The 3G Network section indicates the phone’s compatibility with third-generation mobile networks, such as UMTS, HSPA, and HSPA+. 3G provides faster mobile data than 2G and supports services such as web browsing, video calling, and multimedia streaming. |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1x |
| 4G Network The 4G Network section shows whether the phone supports fourth-generation mobile networks, primarily LTE technology. 4G offers faster mobile internet speeds, lower latency, and improved performance for browsing, streaming, online gaming, and other data-intensive activities. | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 |
| 5G Network The 5G Network section indicates the phone’s compatibility with fifth-generation mobile networks. 5G can provide higher data speeds, lower latency, and improved network capacity, supporting faster downloads, high-quality streaming, cloud services, and other demanding mobile applications. | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 |
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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