difference between ps4 models related with prices

[Muhammad Jawad1]

Please guide me that what is the difference between ps4 models like its market price is about $350 but its other models price is less about $280. So whats the basic difference between them. Please refer to the links
less price are of these two

http://www.amazon.com/PlayStation-500GB-Console-Battlefront-Bundle-4/dp/B01574SORE/ref=sr_1_3?s=videogames&ie=UTF8&qid=1460369676&sr=1-3&keywords=ps4+console

http://www.amazon.com/Tom-Clancys-Rainbow-Six-Siege-PlayStation/dp/B00KVHSOX2/ref=sr_1_13?s=videogames&ie=UTF8&qid=1460369676&sr=1-13-spons&keywords=ps4+console&psc=1

and high is of

http://www.amazon.com/PlayStation-500GB-Console-Black-Bundle-4/dp/B018V3ISJ2/ref=sr_1_1?s=videogames&ie=UTF8&qid=1460369676&sr=1-1&keywords=ps4+console

if there is not much difference then why the price is less or what is the difference ????must reply with reasons

 

[13thmonkey]

Closing this as a duplicate of a thread from a few days ago.