Shieldz screen protector s9 reviews3/14/2024 ![]() Because we didn’t have styluses with hardness ratings between integers, in this guide we note for each protector the range of hardness (for example, “between 6 and 7”), which includes the actual scratch resistance of that model. While it may be pricier than the other protectors on this list, Feitenn’s Galaxy S21 Ultra screen protector is possibly the best overall. We then recorded the number of the hardest stylus that didn’t scratch the glass, along with the number of the stylus that did. Unless two protectors were very close in hardness, the variance in pressure was unlikely to hide the difference, as we saw little ambiguity in the tests: When something scratched, it was very evident.) For each screen protector, we repeated this test with increasing reference picks until a pick scratched the glass. Mobile skins & wraps, covers, screen guards & body protectors for Phones, Laptops, Tablets, MacBooks. ![]() (We couldn’t guarantee precisely consistent pressure across trials, but we did our best to use a similar amount of force each time. In the Mohs test, we started with the number-1 stylus, holding it at about a 70-degree angle and applying a moderate amount of force as we dragged it down the glass protector multiple times in varied directions.
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