Xiaomi Redmi K40S Specs Prices Pros & Cons Unveiled

Overview and Design

The Xiaomi Redmi K40S is an impressive smartphone that was announced and released in March 2022, quickly capturing the attention of tech enthusiasts with its remarkable specifications and design elements. The device features a modern and sleek design, with dimensions measuring 163.2 x 76 x 7.7 mm and weighing 195 g, making it both lightweight and easy to handle.

The front of the device is protected by Corning Gorilla Glass 5, ensuring durability against scratches and everyday wear and tear. The back is constructed from high-quality plastic, which provides a smooth and comfortable grip. The Redmi K40S offers a dual SIM (Nano-SIM, dual stand-by) configuration, enabling users to have multiple mobile profiles on a single device.

Display

The display is one of the standout features of the Xiaomi Redmi K40S. It boasts a 6.67-inch AMOLED screen that offers a rich and vibrant visual experience. The screen supports a 120Hz refresh rate and HDR10+ technology, ensuring smooth scrolling and a lifelike viewing experience whether you are gaming, streaming videos, or browsing the web. With a resolution of 1080 x 2400 pixels and a pixel density of approximately 395 ppi, the display is crisp and detailed, featuring an excellent screen-to-body ratio of roughly 86.6%.

Performance

Under the hood, the Xiaomi Redmi K40S is powered by the Qualcomm SM8250-AC Snapdragon 870 5G chipset, which is built on a 7nm process technology. This octa-core processor includes a combination of 1x3.2 GHz Kryo 585, 3x2.42 GHz Kryo 585, and 4x1.80 GHz Kryo 585 cores, providing outstanding performance and efficiency for a wide range of tasks.

The Adreno 650 GPU handles graphics processing, making the Redmi K40S capable of running demanding applications and games with ease. The device is available in several memory configurations, including 6GB, 8GB, and 12GB RAM options, with storage capacities of 128GB and 256GB. Note that the phone does not support expandable storage via a microSD card, so users should choose the storage capacity that best suits their needs.

Camera

The Xiaomi Redmi K40S features a versatile triple camera setup on the rear. It consists of a 48 MP primary wide-angle lens with an f/1.8 aperture, phase detection autofocus (PDAF), and optical image stabilization (OIS) for clear and steady shots. The secondary camera is an 8 MP ultrawide lens with a 119-degree field of view, perfect for capturing expansive landscapes and group photos. Additionally, a 2 MP macro camera is included for close-up shots, ideal for capturing details at a shorter distance.

For video enthusiasts, the rear camera setup supports 4K video recording at 30fps, and 1080p resolution options at various frame rates including 30, 60, and 120fps. It also has a slow-motion mode capable of 720p recording at 960fps, along with gyro-EIS for stable video captures.

On the front, the Redmi K40S is equipped with a 20 MP wide-angle selfie camera, capable of capturing high-quality self-portraits and video calls. It supports video recording at 1080p up to 120fps, ensuring smooth and detailed footage.

Battery and Charging

The device is powered by a robust Li-Po 4500 mAh non-removable battery that provides ample power to get through a full day of heavy usage. Xiaomi has equipped the Redmi K40S with fast charging capabilities, supporting 67W wired charging. With this remarkable speed, the battery can reach 100% charge in just 38 minutes, advertised under specific conditions, allowing users to spend more time on the go and less time connected to an outlet.

Network and Connectivity

The Redmi K40S is designed to support a wide range of network technologies, including GSM, CDMA, HSPA, CDMA2000, LTE, and 5G, ensuring comprehensive connectivity options for users across the globe. It supports 2G, 3G, 4G, and 5G bands, providing fast and reliable internet speeds, especially with the high-speed 5G connectivity.

For wireless connections, the Redmi K40S offers Wi-Fi connectivity with support for Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, and Wi-Fi Direct. Bluetooth 5.2 ensures swift and energy-efficient connections to a variety of peripherals, while the NFC capability allows for convenient contactless payments and device pairing. The device also includes a USB Type-C 2.0 port, which supports OTG for direct connectivity with USB peripherals.

Additional Features

The Xiaomi Redmi K40S is not short on additional features. It includes a side-mounted fingerprint sensor for quick and secure access to the device. Other sensors onboard include an accelerometer, gyro, proximity sensor, compass, and a color spectrum sensor for enhanced functionality and user experience.

Sadly, traditionalists might miss the absence of a 3.5mm audio jack, but the device compensates with stereo speakers that deliver a loud and clear audio experience for media consumption and calls.

Software

Out of the box, the Xiaomi Redmi K40S runs on Android 12, overlaid with Xiaomi's MIUI 13 interface. This combination offers a refined user experience with an array of customizations, features, and optimizations tailored to enhance the overall performance and usability of the phone. MIUI 13 enhances productivity and security, while also providing a seamless experience across Xiaomi's unique ecosystem of products.

Price and Availability

The Xiaomi Redmi K40S was made available at a competitive price point, starting at approximately 260 EUR. Its availability spans multiple markets, offering an attractive option for users seeking high-performance smartphones at an accessible price.