Xiaomi introduces Redmi’s latest top-end premium Smartphones in its K-series – Redmi K40 Pro, Redmi K40, and Redmi K40 Pro+ handsets with 120Hz refresh rate and 360Hz touch sampling rate. These mobile phones were officially announced in China.
Powering these handsets is the Qualcomm Snapdragon 800-series chipsets processor, and they are all fueled by a 4,520mAh battery capacity which charges up to 33W over USB-C that can charge from 0 to 100% in just 52 minutes.
It supports USB Power Delivery 3.0 and QuickCharge 3.0+, and they all arrive in triple colors options, Glossy Black, Icy White, and Dreamland colors options. These phones feature stereo speakers with Dolby Atmos and Hi-Res Audio certifications.
Redmi removed the 3.5mm headphone jack for USB Type-C audio and there’s also an X-axis linear motor for better haptic feedback. The Redmi K40 series comes with support for sub-6 GHz 5G connectivity, and Wi-Fi 6 for fast data speeds.
The Pro and Pro+ come with support for Wi-Fi 6E, which can reach speeds up to 3.5Gbps and Bluetooth 5.2 version. In addition to that, there’s Hi-Res Audio Wireless certification, NFC, and an IR blaster. The Pros lacks mmWave 5G.
Xiaomi incorporated a preferable AMOLED screen, but the company still settled for a side-mounted fingerprint reader that also doubles as the power button. All these devices arrive with three IP53-rating that provide better and solid dust resistance and water-resistant.
On the front of the Redmi K40 series is a Samsung-made E4 AMOLED panel, 6.67-inch Full HD+ 20:9 HDR10 + display with MEMC with 1080 x 2400 px resolution. It supports a 120Hz refresh rate, DCI-P3 color space, and HDR10+.
With the brightness going up to a total of 8,192 steps and peaks at 1,300 nits, the display earned an A+ mark from DisplayMate. It also sports a 5,000,000:1 (Min) contrast ratio and Corning Gorilla Glass 5 protection.
The Redmi K40 Pro and K40 Pro+ are completely powered by the Qualcomm 5nm Snapdragon 888 process with a fast Cortex-X1 CPU core, Adreno 660 GPU that is 35% faster than that in the Snapdragon 865 and the NPU lends 26 TOPS of processing power to AI algorithms.
The major difference between these phones is the camera features, where the Redmi K40 Pro+ comes with a 108-megapixels 1/1.52″ Samsung ISOCELL HM2 sensor, support f/1.75 aperture, and LED flash.
Redmi K40 Pro+ primary camera comes with support for 9-in-1 binning, which makes for an effective pixel size of 2.1 µm. Fortunately, there is the dual native ISO and Super Night Scene 2.0 for effective lighting conditions.
While the Redmi K40 Pro main camera is a 64-megapixels sensor with a 1/1.7” optical format and supports 4-in-1 binning enabled, the effective pixel size is 1.6µm. While the rest of the camera features are identical.
There is the 8-megapixels 119° ultrawide-angle camera with f/2.2 aperture, 5-megapixels telephoto macro lens, and they all arrive with a 20-megapixels camera on the front inside the hole-punch hole.
It can record 8K video at 30 fps and 4K video at 30 and 60 fps, while the Slow-motion clips can be shot at up to 960 fps at 1080p resolution and the selfie camera tops out at 1080p at 30 fps for regular videos and 120 fps at 720p slow-mo clips.
The Xiaomi Redmi K40 comes with a Sony IMX582 48-megapixels rear camera with a 1/ 1.2″ Sony IMX582 sensor, f/1.79, 0.8 µm pixels, and LED flash supports, 8-megapixels 119° ultra-wide-angle lens, a 5-megapixels telemacro lens and records videos at 4K/30 fps.
It arrives with sub-6 GHz 5G, Wi-Fi 6 (non-E), and Bluetooth 5.1 connectivity, and it is powered by an Octa-Core Snapdragon 870 7nm Mobile Platform with Adreno 650 GPU. The clock speed of its prime core to 3.2 GHz, which is the fastest currently on the market, and its NPU is rated at 15 TOPS.
The basic model is 6GB LPDDR5 RAM and 128GB UFS 3.1 storage, however, there is 8GB and 12GB RAM with up to 256GB storage. These handsets run on MIUI 12 based on Android 11, but the company promises that MIUI 12.5 update is coming soon.
Xiaomi K40 Pro+ costs CNY 3,700 ($575/€470) for 12GB LPDDR5 RAM and 256GB (UFS 3.1) storage. Redmi K40 Pro starts at CNY 2,800 for the 6GB RAM / 128GB storage model ($435/€355) and the Redmi K40 is available for pre-order at CNY 2,000 for the 6GB / 128GB model costs ($310/€255). Redmi confirms that you can pre-order the K40 series and shipping starts on March 4.