A trend on X, formerly Twitter, encourages users to tap, hold and download photos in 4K resolution. The feature was first introduced in 2021.

Mars is a planet marked by thousands of craters, but what makes some of them truly bizarre? Thanks to the HiRISE camera aboard NASA's Mars Reconnaissance Orbiter, we now have 4K images that show ...

Twitter is now letting all iOS and Android users tweet images in 4K, lifting the previous resolution restriction for its mobile apps. Twitter should look a whole lot better now. Skip to main content ...

Meta later clarified to The Verge that “HD” in this instance refers to images measuring 4,096 x 4,096 — so 4K in other words. Meta Staying with photos, the company confirmed that shared ...

Facebook Messenger will now support photo-sharing at 4k resolutions, meaning high resolution photos sent within the app will look much sharper than before.