The OPPO K14x 5G features a large 6.75-inch IPS LCD display with a 120Hz refresh rate, 700 nits typical brightness, and up to 1125 nits peak brightness, offering smooth scrolling and clear visibility in bright surroundings. Powered by the MediaTek Dimensity 6300 chipset and Android 15 with ColorOS 15, the smartphone is available with up to 6GB RAM and 128GB internal storage, while a microSDXC card slot provides additional storage flexibility. For photography, it features a 50MP primary camera with PDAF and an auxiliary lens, supported by LED flash, HDR, and panorama modes, along with a 5MP front camera for selfies and video calls. The device supports 5G connectivity, dual-band Wi-Fi, Bluetooth 5.4, GPS, and USB Type-C 2.0 with OTG, while a 3.5mm headphone jack offers convenient wired audio connectivity. A 6500mAh battery provides extended usage and supports 45W wired charging, along with 33W PPS, 13.5W PD, and 5W reverse wired charging. Its IP64-rated construction offers protection against dust and water splashes, while a side-mounted fingerprint sensor, accelerometer, proximity sensor, and compass add convenience to the everyday user experience.