Xperia smartphone receives blurred text messages
If the text messages on your Xperia® phone are blurry or the photo quality is poor, it may be because the Android™ messages have a maximum size limit of 300KM for MMS (Multimedia Messaging Service).
If the attachments exceed or are very close to this limit, they will be compressed automatically.
Note: If the Chat feature is enabled, RCS (Rich Communication Services) is used, and there is no such limit.