
Facebook announces an update to its Messenger. Its chat app service has been improved to support 4K photo sharing.
What this means, users can send pictures “up to 4,096 x 4,096 pixels per image,” one of, if not the highest resolutions smartphones currently support.
According to Facebook, its Messenger users send 17 billion pictures via the service every month, and many of them have requested to have the ability to send photos in a higher resolution.
While Facebook doesn't say how many of those pictures are downgraded 4K, but it does say that 4K photos will send as quickly as any other resolution.

With the update, Facebook is adapting Messenger to the modern needs of high-quality pictures. Since many smartphones support 4K, it's obvious that people also want to share that same crisp image experience with others.
To send and share photos at 4K resolution, users must use the latest version of the Messenger app. Then they can open a conversation like usual, and tap on the camera roll icon. Select a photo, tap send, and the person they're messaging with will receive that high quality photo.
Starting at the announcement, Facebook is initially rolling out the 4K resolution on both iPhone and Android to people in the U.S., Canada, France, Australia, the UK, Singapore, Hong Kong, Japan, and South Korea.