The appearance of images associated with contacts on a device using the Android operating system is not uniform across all entries. The presence of these images is dependent on several factors related to how the contact information was initially saved and how it interacts with various applications and services.
Having associated images enhances user experience by visually identifying individuals within the contacts list and during communication. Previously, contact pictures were limited by storage and manual assignment. Modern systems draw images from linked accounts and offer simplified image assignment processes.