A ringtone is the sound made by a telephone to indicate an incoming telephone call. Originally referring to the sound of electromechanical striking of bells or gongs, the term refers to any sound by any device alerting of an incoming call.
Electromechanical ringer in a 20th century landline telephone
A tone ringer IC: ITT SAA 1094
A smartphone is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multimedia playback and streaming. Smartphones have built-in cameras, GPS navigation, and support for various communication methods, including voice calls, text messaging, and internet-based messaging apps.
A smartphone displaying the homepage of the English Wikipedia
The Nokia 9110 Communicator, opened for access to keyboard
Several BlackBerry smartphones, which were highly popular in the mid-late 2000s
The LG Prada with a large capacitive touchscreen introduced in 2006