First and foremost, the quality you get from the 1.5 second ahead of and after animations are a great deal-improved. When transferring images all around, Apple will try out to maintain HEIF formatting for high-quality reasons but, if you ever test to send a HEIF image to an more mature device that will not aid it, or Apple can't notify if the device you might be sending it to is appropriate, the program will instantly convert to JPG 1st.