Claim: The IPhone 4 is a type of telephone.
Evidence: The iPhone 4 is a smartphone that was designed and marketed by Apple Inc..
Smartphones , which are typically pocket-sized -LRB- as opposed to tablets , which are much larger in measurement -RRB- , have the ability to place and receive voice/video calls and create and receive text messages , have personal digital assistants -LRB- such as Siri , Google Assistant , Alexa , Cortana , or Bixby -RRB- , an event calendar , a media player , video games , GPS navigation , digital camera and digital video camera.