480luxs

480luxs refers to a lighting measurement standard commonly used in the context of ambient lighting for electronic devices, particularly smartphones and tablets. The term "480lux" indicates a brightness level of 480 lumens per square meter, which is a unit of illuminance measuring the amount of visible light hitting a surface. This standard is often associated with the Apple iPhone 4, which was one of the first devices to incorporate a 480lux display, setting a benchmark for screen brightness in consumer electronics.

The 480lux display was notable for its high brightness, which improved visibility in bright outdoor environments while reducing eye strain. This feature was particularly advantageous for users who frequently accessed their devices in sunlight or well-lit areas. Over time, subsequent smartphone models from Apple and other manufacturers adopted similar or higher brightness levels, as consumer demand for better visibility and comfort in varying lighting conditions grew.

While 480lux became a reference point for display technology, modern smartphones now feature even brighter screens, often exceeding 600lux or more, to accommodate high-dynamic-range (HDR) content and further enhance outdoor usability. The term remains relevant in discussions about display technology, retro devices, and comparisons of older-generation smartphones.