HIKMICRO STELLAR SX75L 4.0 features a 1280 × 1024 thermal detector with a 12μm pixel interval and NETD of less than 12mK. Paired with a 75mm F1.2 lens, it offers a detection range of up to 3600m and a magnification range of 3.0×–30.0×. A side focus ring provides focus adjustment, with a minimum focusing distance of 10m.

A 2560 × 2560 resolution 1.03-inch AMOLED display presents thermal imagery with six selectable colour palettes. HIKMICRO Image Pro 4.0, Intelligent Zoom, HSIS, and Sync Pro support image processing and viewing performance. Adjustable brightness, contrast, and warm or cold tone settings allow users to tailor the display to their preferences.

The LRF-inside design incorporates a laser rangefinder with a measuring range from 10m to 1200m and a specified accuracy of ±1m. The scope also includes ballistic calculation, five zeroing profiles, and freeze zeroing, bringing distance measurement and setup functions together in one device.

An 8mm exit pupil, 55mm eye relief, and -5D to 5D diopter adjustment provide viewing adjustment options. Featuring standard 30mm mounting, the STELLAR SX75L 4.0 measures 445.7mm × 93.5mm × 78.7mm and weighs 1075g with the external battery. Its IP67 protection, shock resistance up to 6000J, and operating temperature range of -30°C to +55°C support demanding field use.

The power system combines two internal rechargeable lithium batteries with one external replaceable and rechargeable 18650 battery, delivering seven hours of continuous operation at 25°C with the LRF on. Built-in 64GB EMMC storage, video and audio recording, snapshot capture, and recoil-activation recording allow users to save and review recordings. The USB Type-C interface supports QC3.0 and charges the built-in battery; the external battery requires a battery charger.