
Now testing on Android and iOS: when you Tweet a single image, how the image appears in the Tweet composer is how it will look on the timeline –– bigger and better.


Most phone camera images far exceed these resolution limits, so they won't be uploaded in lossless quality but you can still see them in much higher resolution now once they get uploaded than before. Twitter web was the best, as it maintained both the resolution and file size (since the file was under the max 5MB that the site supports before it gets compressed) and thereby provided a lossless upload. The 4K mode reduced the file size by compressing it but the 4K resolution was maintained. The non-4K mode compressed the file size and also changed the resolution to 2K. To check the new feature, I uploaded a 4096x4096 image twice from the iOS app with and without 4K quality enabled and once through Twitter web. This will cause the app to compress the image less before uploading, which will increase the final resolution of the image but will also increase the upload file size and time it takes to upload the file. To enable uploading in higher resolution, you will need to go into Settings and privacy > Data usage > High-quality images uploads and set it to either Mobile data & Wi-Fi or Wi-Fi only from the default Never. EgW5fsb8Z8- Twitter Support March 10, 2021 If you're in the test, update your high-quality image preferences in “Data usage” settings to get started. Have a collection of higher res photos waiting to be shared? We’re testing ways for you to upload and view 4K images on Android and iOS. Previously, the limit was 2K or 2048x2048 pixels. This likely refers to the same 4096x4096 resolution limit that exists when uploading from Twitter web.

Twitter is rolling out a server-side update on its iOS and Android apps that will enable higher quality uploads from these platforms while also changing how the image appear on the timeline.īoth apps now support uploading images in 4K.
