To start uploading and viewing images in 4K, update your high-quality image preferences in “Data usage” settings.
Time to Tweet those high res pics –– the option to upload and view 4K images on Android and iOS is now available for everyone. Twitter Support tweeted more information about the feature - so check that out if you'd like to know the nitty-gritty: This list contains the top 50 accounts with the most followers on the social media platform Twitter. You can help by adding missing items with reliable sources.
If you'd like to tweet out a 4K image, just upload an image like normal ( steps on how to do that here), and it will tweet out in high resolution. This is a dynamic list and may never be able to satisfy particular standards for completeness. Right-click on the photo and choose Open Image in New Tab. Once you've enabled high-quality images under settings, feel free to start scrolling on Twitter, and all your images should appear super crisp. Follow these steps to do download a profile photo in its original size from Twitter: Open the photo you wish to save.
Note: You can select whether you'd like higher-resolution images to be enabled for both cellular and Wi-Fi or Wi-Fi only, or you can disable the feature.
To download embedded videos without any software installation is also available.