HEIC stands for High Efficiency Image File, Apple's new image container format that compresses photos in order to save space. HEIC image files are available on iPhone 7 and later models running iOS 11 or later operating systems. Under most circumstances, you won't even notice the file format of your photos, but occasionally, you may run into technical difficulties when transferring photo files from your iPhone to your computer or cloud storage.
The short answer is yes. HEIC is better than the JPG file format. Not only is the file size half that of a standard JPG, but the image quality is better too. The biggest drawback to using HEIC files is that they aren't supported by every device — at least, not yet. While we wait for the technology to catch up, we have to deal with the headache of transferring HEIC photos to JPGs for use with some applications.
Here are some heic samples for you!
How to convert HEIC to JPG or PNG?
HEIC Image Viewer - Converter Supported
The Heic Image Viewer - Converter Supported could be download from the Windows Store. It supports batch converting and viewing the heic image.