• The Sapphire Apple Watch Models Suffer in Ambient Lighting Worse Than Ion-X Models

    According to recently published lab tests, although the sapphire that is used in many Apple Watch displays tends to be more durable than the Ion-X glass in the Apple Watch Sport, it apparently doesn’t have as good image quality, especially when under ambient light.

    DisplayMate reported that Apple’s sapphire displays have roughly 74% more screen reflectance than Ion-X, impacting contrast and color gamut. That being said, when in total darkness, performance between the two materials was essentially identical at 500 lux, but in mid-level indoor ambient lighting, contrast ratios dropped to 64 for Ion-X and 38 for sapphire, even with the Watch light sensors tricked into allowing maximum brightness. When in outdoor shade, which is roughly 2,000 lux, the same ratios fell to 17 and 10 respectively. Broad daylight reduced contrast even further with ratios down to 3 and 2 at 10,000 lux. It should be noted that daylight can top out at about 25,000 lux.

    When it came to the sRGB color gamut in complete darkness, both the Ion-X and the sapphire displays were said to be around 100%. By 500 lux though, the figures dropped to 93% for glass and 85% for sapphire. When the lux was increased to 2,000, the coverages were dropped to 68% and 54%.

    According to DisplayMate, the best way to narrow the gap between the two materials would be to modify qualities of the sapphire used, especially since anti-reflective coatings can get scratched too easily. The Cupertino California company can also make use of some newer technologies such as dynamic intensity and color management functions that both react to ambient light.

    In the eyes of consumers, the most noticeable difference between the two different iterations of the Apple Watch is the price tag they each carry. The Apple Watch Sport starts at $349 and the cheapest sapphire model starts at $549, though it also comes with the added benefit of stainless steel casing instead of aluminum.

    Source: DisplayMate via AppleInsider
    This article was originally published in forum thread: The Sapphire Apple Watch Models Suffer in Ambient Lighting Worse Than Ion-X Models started by Akshay Masand View original post
    Comments 1 Comment
    1. vinaygoel2000's Avatar
      vinaygoel2000 -
      So which one is Ion and which is sapphire in the image?
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