Xiaomi Redmi Note 15 4G

The Xiaomi Redmi Note 15 4G has a non-folding, non-rugged form factor measuring 164 mm tall, 75.4 mm wide, and just 7.9 mm thick, with a total volume of 97.69 cm³ and a weight of 183.7 g. It carries an IP64 ingress protection rating, which classifies it as water resistant, offering a degree of protection against dust and water splashes in everyday use.

The Xiaomi Redmi Note 15 4G features a 6.77″ OLED/AMOLED touchscreen with a resolution of 1080 x 2392 px and a pixel density of 388 ppi, backed by a striking 8,000,000:1 contrast ratio that is characteristic of OLED panel technology. The display runs at a 120 Hz refresh rate with a 240 Hz touch sampling rate, ensuring responsive input handling, and it supports an Always-On Display mode along with branded damage-resistant glass for added durability. The screen does not support HDR10, HDR10+, or Dolby Vision, and there is no secondary screen on the device.

The Xiaomi Redmi Note 15 4G is driven by the MediaTek Helio G100 chipset, built on a 6 nm process with a 5W TDP, featuring an octa-core CPU configuration of 2 x 2.2 GHz and 6 x 2 GHz cores across a big.LITTLE architecture with Heterogeneous Multi-Processing (HMP) support, delivering 8 threads in total. Graphics are handled by the integrated Mali G57 GPU running at 1000 MHz, with support for DirectX 11, OpenGL ES 3.2, and OpenCL 2. The device comes with 8 GB of LPDDR4 RAM at 4266 MHz and 512 GB of internal storage, with a maximum supported memory amount of 12 GB and a peak memory bandwidth of 17.1 GB/s. Additional platform features include integrated LTE, 64-bit support, ARM TrustZone security, and integrated graphics.

The Xiaomi Redmi Note 15 4G sports a single-lens 108 MP rear camera built around a CMOS sensor, capable of recording video at 1080p and 30 fps with continuous autofocus during recording, along with slow-motion video support. It offers phase-detection autofocus, touch autofocus, and a broad set of manual controls including exposure, ISO, focus, and white balance, while burst mode, HDR, panorama, and timelapse round out its shooting options. The rear camera does not include optical image stabilization, a BSI sensor, laser autofocus, optical zoom, manual shutter speed, RAW capture, 360-degree panorama, or HDR10 and Dolby Vision recording, and its single LED flash has no dual-tone or RGB configuration. On the front, a 20 MP single-lens camera handles selfies without a dedicated flash or under-display placement, and neither camera supports 3D photo or video recording.

The Xiaomi Redmi Note 15 4G runs Android 15, a free and open-source platform that supports multi-user operation, split-screen multitasking, Picture-in-Picture, widgets, sharing intents, and the ability to play games while they are still downloading. Privacy is addressed through location privacy options, camera and microphone access controls, clipboard warnings, and app tracking blocking, though Mail Privacy Protection, cross-site tracking blocking, and Wi-Fi password sharing are not available. Productivity and usability features include dark mode, dynamic theming, theme customization, customizable notifications, notification permission controls, a media picker, full-page screenshots, Live Text, extra dim mode, battery health check, on-device machine learning, offline voice recognition, voice commands, app offloading, child lock, and device position tracking. OS updates do not come directly from the vendor, and the device does not support focus modes, Quick Start, or the ability to function as a PC.

The Xiaomi Redmi Note 15 4G is equipped with a 6000 mAh non-removable rechargeable battery that supports 33W fast charging, allowing for quicker top-ups compared to standard wired charging. A battery level indicator is present to keep track of remaining charge, though the device does not support wireless charging or reverse wireless charging.

The Xiaomi Redmi Note 15 4G features stereo speakers and supports LDAC for high-quality Bluetooth audio transmission, though it does not include aptX, aptX HD, aptX Adaptive, or aptX Lossless codec support. The device also lacks a 3.5 mm headphone jack, so wired audio connections require an alternative adapter solution.

The Xiaomi Redmi Note 15 4G supports dual SIM operation with a cellular module, Bluetooth 5.3, Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), NFC, and a USB Type-C port running at USB 2.0 speeds. Download speeds reach up to 650 MBits/s with upload speeds of up to 150 MBits/s, and an external memory slot is available for additional storage. Location capabilities include GPS with Galileo support alongside a compass, while onboard sensors cover a gyroscope and accelerometer. Security is handled via a fingerprint scanner, though 3D facial recognition and an iris scanner are not present. The device does not support 5G, HDMI output, DLNA, ANT+, infrared, a barometer, a heart rate monitor, crash detection, emergency SOS via satellite, motion or optical tracking, or a built-in projector, and no stylus is included.

The Xiaomi Redmi Note 15 4G includes a curved display and a video light, adding a sleek visual edge and practical illumination during video recording. The display uses neither sapphire glass nor e-paper technology.