
Upping their game in allowing users to post better quality images, Twitter has now enabled support for 4K pictures on both iOS and Android.
Twitter started testing support for 4K images for its Android and iOS apps last month and has now successfully announced that it is rolling out support for Twitter users to post 4K images on Android and iOS. Prior to this update, Twitter allowed a maximum resolution of 2048 x 2048 for images uploaded from its mobile app.
Time to Tweet those high res pics –– the option to upload and view 4K images on Android and iOS is now available for everyone.
To start uploading and viewing images in 4K, update your high-quality image preferences in “Data usage” settings. https://t.co/XDnWOji3nx
— Twitter Support (@TwitterSupport) April 21, 2021
Twitter’s web app already supports higher-resolution images (at up to 4096 x 4096 resolution), but the mobile apps had been limited to just half of that. Twitter users can now upload and view 4K images on their timeline from the Android and iOS apps. Twitter’s web client already supports 4K images in tweets. It looks like the tests were successful as Twitter has made the feature available to all users. To view and upload images in 4K, Twitter users will have to enable the feature from the app’s settings.
This being said, once this is enabled, you will start seeing 4K images on your timeline, and also be able to upload 4K images. Note that higher-resolution images will consume more data than before so you might want to keep a check on that. You can also always switch data saver on from the same settings menu if you’re running low on data.

Source: PixaHive
You can go ahead and enable 4K by doing these settings:
Open the Twitter app on Android or iOS.
Tap on the hamburger menu to access the app’s settings.
Select ‘Data usage’ under general from the settings menu.
Under images, turn on high-quality image uploads, and high-quality images.
You can choose either Wi-Fi or mobile data & Wi-Fi.
Apart from the new 4K addition, Twitter is now also testing full view photos on Android and iOS. At present, Twitter displays cropped images on its mobile apps, and you have to tap on them to view the full image. It is testing showing images in full view, and not in half. So the image you tweeted will look exactly like how it does in the tweet composer. Twitter is expected to make this feature official soon.

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