What is the Difference between Ecommerce VS Mcommerce ?

I think ecommerce is best.

Simply put, ecommerce is an umbrella term for selling and buying online, while mobile commerce, or mcommerce, is a subcategory of ecommerce that focus on purchasing via mobile devices.

E-commerce refers to the buying and selling of goods and services online. It includes any transactions between businesses carried out online.
M-commerce refers to the buying and selling of goods and services online through a mobile device.

E-commerce refers to the buying and selling of goods and services online. It includes any transactions between businesses carried out online. M-commerce refers to the buying and selling of goods and services online through a mobile device.