Tap the Add Photos & Videos button inside a Circle to open the Media Picker. Select the media you wish to add to the circle.

 

Photo Resolution & Video Length
Photos are compressed and resized to a maximum of 3 megapixels. The maximum video length is 60 seconds per clip. Video resolution is 720p. Higher resolution and longer videos are available to our Business Platform customers.
 
Photo Library Permissions/Access (iOS only)
When adding photos & videos from the media picker, be sure to allow full access to your photo library. Otherwise, the media picker will only have access to a subset of your photo library, requiring a two-step selection process of allowing visibility to the photos, followed by actually adding the photos to your circles.