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If a dirty phone screen or smudged eyewear already drive you nuts, consider whether you want to be cleaning another display. Using a PC in places other than a desk is really what laptops are all about, so you'll no doubt encounter some sun or direct light. Using a touchscreen in the dark or in a room with dim lighting won't cause many problems, but have you ever tried using one in direct light? Since most touchscreens have a glossy finish (the alternative is a matte finish, which is much better in the sun but not often used on touchscreens), fingerprints, smears, and smudges show up in a major way. Touchscreens are harder to see in direct light That's really not a lot, but in a laptop that already weighs under three pounds, it is noticeable. The difference in the Dell XPS 13, for example, is about 0.2 pounds. The difference in weight is often in mere grams, but part of the allure of a laptop is how light it is.
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That extra technology baked into the display takes up space and will usually make the laptop heavier.
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