iPhone Email Image Sizes

When you use the native Mail app to send a picture, it will ask you to choose which size to use. It tells you the file size of the image, but it doesn’t mention what resolution is going to be used. I created a table which shows which resolutions will be used.

iPhone 4 Image Email Sizes

Type	Size	Format	File size	Image size
Picture	Small	JPG (GPS)	30 KB	320 x 239
Picture	Medium	JPG (GPS)	90 KB	640 x 478
Picture	Large	JPG (GPS)	375 KB	1296 x 968
Picture	Actual	JPG (GPS)	2 MB	2592 x 1936
Front picture	-	JPG (GPS)	120 KB	480 x 640
Screenshot	Small	PNG	135 KB	213 x 320
Screenshot	Medium	PNG	522 KB	426 x 640
Screenshot	Actual	PNG	1 MB	640 x 960

iPad Image Email Sizes

Type	Size	Format	File size	Image size
Screenshot	-	PNG	933 KB	768 x 1024

Legend:

• Picture: A picture taken using the rear facing camera.
• Front picture: A picture taken using the front facing camera.
• Screenshot: A screenshot taken by pressing the home and lock buttons at the same time.
• GPS: These images store your current location as part of the image, if location services is enabled for the camera app.
• Size: The size as it is listed in the resize prompt of the Mail app. The “-“ means that the mail app does not prompt for an image size, and the full resolution is used.
• File size: These file sizes are approximations.
• Image size: The image size, in pixels. They are all 72 pixels/inch.