Which computer is better? - 1

http://www.costco.com/Dell-Inspiron-13-5000-Series-2-in-1-Touchscreen-Laptop---Intel-Core-i5---1080p.product.100306653.html

http://www.costco.com/Dell-Inspiron-13-5000-Series-2-in-1-Touchscreen---Laptop-Intel-Core-i7---1080p.product.100292677.html

both are from Costco, and the same except the only difference I see is the price. Please explain why? Thanks!
Added (1). *I need this for the nursing program*

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