Google analytics: eCommerce vs. enhanced eCommerce?

Standard ECommerce systems track clicks, views and overall engagement, while Enhanced ECommerce allows you to go through the step by step process of the entire operation from product view to final purchase, allowing you to follow the process in better detail to better target your intended market.

Standard eCommerce tracks impressions, clicks, and conversion on only the order/ confirmation page while enhanced eCommerce tracks product impressions, and conversions from when a customer adds a product to cart, to choosing a payment method, shipment and checkout.