Allow me to start with a quick summary of this article:
There's a 270% gap in conversions between desktop and mobile, because mobile websites suck and we’re all doing it wrong. (Now that I’ve gotten that out of the way, I’ll explain why and what needs to be done to fix this.)
At its essence, responsive design is supposed to make a cross-device world a more seamless experience by adapting your desktop design to a smaller mobile screen. Unfortunately, condensing all that desktop content into such a small screen has the exact opposite effect — it's actually causing huge loss in conversion rates. But how?
https://moz.com/blog/responsive-design-fix-conversions/
An effective e-commerce product page captures the audience’s attention and compels them to convert to paying customers.
Many e-commerce businesses believe a product page is all about high-resolution images with detailed descriptions for each product.
Although these are important areas that need to be considered, thinking that they are the only elements needed to win the game for you is overly simplistic.
In this post, I'll discuss the elements that make a product page captivating for visitors. I'll discuss in detail the things you should consider doing on your product pages so that they stand out from the competition.
https://moz.com/blog/heres-how-to-create-a-product-page-that-converts/