Realme 12X 5G

The Realme 12X 5G has a standard candy-bar form factor — it does not fold and carries no rugged build designation. It measures 165.6 mm tall, 76.1 mm wide, and 7.9 mm thick, with a total volume of 99.557064 cm³ and a weight of 188 g. The device holds an IP54 rating for protection against dust and water splashes, and it carries a French Repairability Index score of 7.5.

The display is a 6.72″ IPS LCD touchscreen with a 1080 x 2400 px resolution and a pixel density of 392 ppi, running at a 120Hz refresh rate for fluid scrolling and responsive interaction. Typical brightness is rated at 800 nits, making it reasonably usable in outdoor lighting. There is no branded damage-resistant glass, no Always-On Display, no secondary screen, and HDR10, HDR10+, and Dolby Vision are not supported.

The Realme 12X 5G is powered by the MediaTek Dimensity 6100 Plus chipset, fabricated on a 6 nm process with an octa-core CPU running at 2 x 2.2 GHz and 6 x 2 GHz using big.LITTLE technology and Heterogeneous Multi-Processing across 8 threads with multithreading support. Graphics are managed by a Mali G57 MC2 GPU clocked at 950 MHz, with DirectX 12 support and integrated graphics on the SoC, which also includes integrated LTE. The phone ships with 8GB of DDR4 RAM at 2,133 MHz — expandable up to 12GB maximum — alongside 128GB of internal storage, and a PCMark Work 3.0 performance score of 9,816 reflects the chipset's day-to-day productivity capability.

The rear camera is a dual-lens setup with a 50 MP main sensor at f/2.4 paired with a 2 MP secondary lens at f/1.8, using a CMOS sensor without back-side illumination or optical image stabilization. Autofocus options include phase-detection and touch autofocus with continuous autofocus during video, while laser autofocus is absent. Manual controls cover exposure, ISO, white balance, and focus, and the camera supports HDR mode, burst shooting, slow-motion video, timelapse, and in-camera panoramas, though RAW capture, 360° panorama, and manual shutter speed are not available. Video recording is capped at 1080p at 30 fps with no HDR10 or Dolby Vision recording, and a single LED flash handles lighting with no dual-tone or RGB option. The front camera is a single 8 MP lens at f/2.0 with no front-facing flash and no under-display placement.

The device runs Android 14 and includes a solid set of privacy tools covering clipboard warnings, location privacy options, and camera/microphone access controls, though Mail Privacy Protection and cross-site tracking blocking are not available. Usability features include dark mode, dynamic theming, theme customization, extra dim mode, customizable notifications, notification permissions, a media picker, widgets, split-screen multitasking, Picture-in-Picture, full-page screenshots, Live Text, sharing intents, child lock, and the ability to play games during downloads — while focus modes, app offloading, Wi-Fi password sharing, and Quick Start are absent. On-device machine learning, offline voice recognition, voice commands, multi-user support, and device tracking are all included, and the platform is free and open source, though OS updates do not come directly from the vendor.

The Realme 12X 5G houses a 5000 mAh rechargeable battery with support for 45W fast charging and a built-in battery level indicator. Wireless charging and a removable battery are not available.

The phone includes a 3.5 mm headset jack and stereo speakers for audio output, and supports aptX HD for higher-quality Bluetooth audio transmission. Standard aptX, aptX Adaptive, aptX Lossless, LDAC, and a built-in radio are all absent.

The Realme 12X 5G supports 5G connectivity with dual SIM capability and download speeds reaching 3,300 Mbits/s, alongside Wi-Fi 5 (802.11ac) and Wi-Fi 4 (802.11n) for wireless networking. Bluetooth 5.3 and NFC are both present, and the USB-C port operates on USB 2.0. Location and motion sensors include GPS with Galileo support, a compass, gyroscope, and accelerometer, while a fingerprint scanner handles biometric authentication. A barometer, infrared sensor, heart rate monitor, iris scanner, 3D facial recognition, ANT+, DLNA, satellite SOS, crash detection, HDMI output, stylus, motion tracking, optical tracking, and a built-in projector are all absent.

The device includes a video light to assist with recording in low-light conditions, while the display is flat and features neither sapphire glass nor an e-paper panel.