Camera - saving image

Why picture taken with camera vary in size depending on location saved.

Using this options to take picture; ( Android )

const options: CameraOptions = {
quality: 70,
saveToPhotoAlbum: true,
targetWidth: 1440,
targetHeight: 1440,
correctOrientation: true,

image is saved to :

and it is about 50kb, but image saved to photoalbum ( Pictures folder ) is 1,5 MB !? Why? They look exactly same in quality.

I tought that first image ( cached ) is erased after device restart but it’s not, as I can see only difference is in location, and either i uploaded to server are same quality and JPG format, but not file size.