What is the HEIF image format? What are the advantages and disadvantages of HEIF image format?

Explanation:
HEIF is a brand new image storage format, also known as high-efficiency image format.
The suffix of pictures in HEIF format is "*.HEIC". Compared with the general JPG picture format, HEIF saves pictures with higher quality and better compression effect. With the same picture quality and same resolution, the space occupied by HEIF pictures can be reduced by up to 50% compared with JPG, which is very promising for the future A common file format for image storage and transmission.
However, the current application of the HEIF format is not wide enough, and the compatibility is not very good. It will not be possible to open photos in the HEIF format on incompatible devices.
Mi 10 and Mi 10 Pro support HEIF format, but considering compatibility, photos are still saved in JPG format by default. If you need, you can manually switch to HEIF format in the camera settings for storage.
It should be noted that only the latest development version of the system supports storage in HEIF format in 108MP (100 million pixels) mode.
 
Supplement:
Currently iPhone 8, 8 Plus, X and later iPhone phones support HEIF format for taking photos.