Xiaomi Redmi K40 icon

Xiaomi Redmi K40

  • Android 11, MIUI 12
  • Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
  • Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
  • 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
  • Black, White, Aurora
  • POST
    PostXiaomi Redmi K40
    Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
    Announced 2021, February 25
    Status Available. Released 2021, March 04
    Dimensions163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
    Weight196 g (6.91 oz)
    Sim Dual SIM (Nano-SIM, dual stand-by)
    Type 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)
    Protection Corning Gorilla Glass 5
    OS Android 11, MIUI 12
    Chip set Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
    CPU Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
    GPU Adreno 650
    Card Slot No
    • 128GB 6GB RAM
    • 128GB 8GB RAM
    • 256GB 8GB RAM
    • 256GB 12GB RAM
    • UFS 3.1
    1. 48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF
    2. 8 MP, f/2.2, 119˚ (ultrawide)
    3. 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm
    Features LED flash, HDR, panorama
    Video 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
    Single 20 MP, f/2.5, (wide), 1/3.4", 0.8µm
    Features HDR
    Video 1080p@30fps, 720p@120fps
    Loudspeaker Yes, with stereo speakers
    3.5mm jack
    • No
    • 24-bit/192kHz audio
    WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
    Bluetooth 5.1, A2DP, LE
    Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
    NFC Yes
    Infrared Port Yes
    Radio No
    USB USB Type-C 2.0, OTG
    Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum
    Type Li-Po 4520 mAh, non-removable
    Charging 33W wired, PD3.0, QC3, 100% in 52 min (advertised)
    Color Black, White, Aurora
    Models M2012K11AC
    Price About 280 EUR


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    Xiaomi Redmi K40: The Perfect Blend of Style and Performance

    In the fast-paced world of smartphones, Xiaomi has consistently been a frontrunner, offering innovation, style, and exceptional performance. The Xiaomi Redmi K40, announced on February 25, 2021, and released on March 4, 2021, is a testament to Xiaomi’s commitment to delivering cutting-edge technology. Let’s delve into what makes this device stand out.

    Specs at a Glance

    • Elegance in Design: The Redmi K40 boasts dimensions of 163.7 x 76.4 x 7.8 mm and weighs in at 196 g, striking a perfect balance between a large, immersive display and comfortable handling. It features dual SIM (Nano-SIM, dual stand-by) support, ensuring you stay connected effortlessly.
    • Mesmerizing Visuals: This smartphone comes equipped with a 6.67-inch Super AMOLED display with a 120Hz refresh rate, HDR10+ support, and an impressive peak brightness of 1300 nits. The display’s 1080 x 2400-pixel resolution results in a pixel density of about 395 ppi. Corning Gorilla Glass 5 protects the screen, offering both style and durability.
    • Powerful Performance: Running on Android 11 with MIUI 12, the Redmi K40 is powered by the Qualcomm Snapdragon 870 5G chipset, built on a 7nm process. It features an octa-core CPU, comprising Kryo 585 cores, and the Adreno 650 GPU, ensuring smooth multitasking and gaming.
    • Versatile Storage Options: The device offers multiple storage and RAM configurations, including 128GB with 6GB RAM, 128GB with 8GB RAM, 256GB with 8GB RAM, and a spacious 256GB with 12GB of RAM. This variety allows you to choose the variant that suits your needs best.
    • Photography Excellence: Equipped with a versatile triple-camera system, the Redmi K40 features a 48MP wide lens, an 8MP ultrawide lens with a 119˚ field of view, and a 5MP macro lens for close-up shots. It supports 4K video recording at 30fps, along with various slow-motion shooting options. The 20MP front camera captures stunning selfies.
    • Advanced Connectivity: This smartphone offers advanced connectivity options, including Wi-Fi 802.11 a/b/g/n/ac/6, Bluetooth 5.1, and robust satellite positioning systems. NFC and an infrared port enhance your daily convenience.
    • Exceptional Audio: While it doesn’t feature a 3.5mm audio jack, the Redmi K40 delivers high-quality 24-bit/192kHz audio through its USB Type-C port. It also boasts stereo speakers, immersing you in a rich audio experience.


    With a price tag of about 280 EUR, the Xiaomi Redmi K40 is a remarkable blend of style and substance. Xiaomi has successfully combined a premium design, exceptional performance, an eye-catching display, and a versatile camera system.

    In summary, whether you’re a photography enthusiast, a power user seeking top-tier performance, or someone who appreciates style and substance, the Redmi K40 offers it all. It’s not just a smartphone; it’s a symbol of Xiaomi’s commitment to innovation and excellence. Elevate your mobile experience with the Redmi K40 – where style meets power.

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