Explain,How is the Cellphone can develop and has benefit to people and society by virtual reality?

My supervisor asked me to choose one of these devices and systems which are written below, I chose (the Cellphone). Then the supervisor asked me to write an essay about it..

His question says :
Convince the supervisor to buy this device,…
why did I choose the Cellphone?
What is distinguished in it from other devices?
What are the pros and cons about it?
How is the Cellphone can develop and has benefit to people and society by virtual reality?
What is the relationship of Cellphone with virtual reality?
show to the supervisor, How can convince him to overcome those disadvantages, and show the disadvantages of the other system, and Compare between the Cellphone and other devices and other systems in bellow?
1: HMD
2: Corner Cave
3: CellPhone
3: AR and MR
5: Other VR

My supervisor wants to be convinced of the search and why I chose the topic (Cellphone).

Please write the ِall of addresses websites for all references you used
Because I want to review it and make sure of the plagiarism…

In the attachments, you will find a reference for the book I am studying which is ( VIRTUAL REALITY ) by Steven M. LaValle.

Thank you
Best wish