Realme C75x

The Realme C75x has a non-folding, non-rugged design that measures 165.7 mm tall, 76.2 mm wide, and 8 mm thin, with a weight of 196 g and a total volume of 101.01072 cm³. Despite the absence of a rugged build, it carries a full IP68 ingress protection rating, classifying it as waterproof and offering solid resistance against dust and water immersion.

The Realme C75x features a 6.67″ IPS LCD touchscreen with a resolution of 720 x 1604 px and a pixel density of 264 ppi, delivering a contrast ratio of 1500:1 and a typical brightness of 500 nits. It supports a 90Hz refresh rate paired with a 180Hz touch sampling rate for responsive interaction. The display does not include branded damage-resistant glass, HDR10, HDR10+, Dolby Vision, or an Always-On Display mode, and there is no secondary screen.

The Realme C75x is powered by the MediaTek Helio G81 Ultra system-on-chip, built on a 12 nm process with 5,500 million transistors and a TDP of 5W. The octa-core CPU uses big.LITTLE technology, running 2 cores at up to 2 GHz and 6 cores at 1.8 GHz, with a turbo clock of 2 GHz across 8 threads, while graphics are handled by the Mali G52 MP2 with 2 execution units, 32 shading units, and a GPU turbo of 950 MHz — supporting DirectX 12, OpenGL 3.2, OpenGL ES 3.2, and OpenCL 2. The chip integrates LTE and includes TrustZone security, with memory provided by 8GB of DDR4 RAM running at 1,800 MHz across 2 channels, offering a maximum bandwidth of 13.41 GB/s, alongside 0.3 MB of L2 cache and 1 MB of L3 cache, while storage consists of 256GB on an eMMC 5.1 interface. Geekbench 6 scores reach 420 single-core and 1,391 multi-core, with Geekbench 5 results of 350 and 1,300 respectively, and the SoC supports 64-bit processing with a maximum memory capacity of 8GB.

The Realme C75x features a single-lens rear camera with a 50 MP CMOS sensor and an f/1.8 aperture, capable of recording video at 1080p/30fps with continuous autofocus during recording, though optical image stabilization and optical zoom are not available. Autofocus options include phase-detection and touch autofocus, while manual controls cover exposure, ISO, focus, and white balance; burst mode, HDR, slow-motion, panorama, and timelapse round out the shooting feature set, though raw capture, 360° panorama, laser autofocus, and manual shutter speed are absent. The rear flash consists of a single LED unit with no dual-tone or RGB capability, and video recording does not support HDR10 or Dolby Vision. On the front, a 5 MP camera sits behind an f/2.2 aperture in a standard position above the display — not under it — with no front flash and a single-lens configuration.

The Realme C75x runs Android 15 and includes a broad set of privacy controls, covering clipboard warnings, location privacy options, and camera/microphone access management, though Mail Privacy Protection and cross-site tracking blocking are not present. On the customization side, it supports dark mode, dynamic theming, theme customization, widgets, and customizable notifications, while focus modes and Quick Start are not available. Productivity features include split-screen multitasking, Picture-in-Picture, full-page screenshots, a media picker, sharing intents, app offloading, and the ability to play games while they download, though the device cannot be used as a PC. On-device machine learning is supported alongside offline voice recognition, voice commands, phone tracking, a child lock, multi-user support, and a battery health check, and OS updates are not delivered directly by the vendor.

The Realme C75x is equipped with a 5600 mAh rechargeable, non-removable battery that supports 45W fast charging, with a charger included in the box. A battery level indicator is present for monitoring charge status, though wireless charging is not supported.

The Realme C75x includes stereo speakers and a single microphone, but does not feature a 3.5 mm headphone jack. Wireless audio codec support is absent across the board, with no aptX, aptX HD, aptX Adaptive, aptX Lossless, or LDAC available.

The Realme C75x supports Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), Bluetooth 5.0, and a cellular module with download speeds up to 300 Mbit/s and upload speeds up to 100 Mbit/s, though 5G is not available. It accommodates two SIM cards and includes an external memory slot for expandable storage, while the USB Type-C port operates at USB 2.0. For location, the device features GPS with Galileo support, a compass, and an accelerometer, but lacks a gyroscope, barometer, infrared sensor, and motion or optical tracking. A fingerprint scanner handles biometric authentication, as 3D facial recognition and an iris scanner are not present, and there is no NFC, HDMI output, ANT+ support, heart rate monitor, DLNA certification, built-in projector, stylus, crash detection, or emergency SOS via satellite.

The Realme C75x includes a video light for recording in low-light conditions, while the display is flat and uses neither sapphire glass nor an e-paper panel.