Personal, Premium, Business wordpress plans - difference

What are the key important differences between Personal, Premium, Business and eCommerce wordpress plans ?

Personal plan offers only basic features. There will be no ads on your website and you can use basic functions.

With Premium plan you have access to premium themes, you can integrate Google Analytics, earn by adding your ads, do some more appearance modifications.

In Business plan probably the best features are advanced SEO tools to get more visitors from search engines and installing of plugins, that can give you opportunity to get new features to enhance your website.

eCommerce plan offers advanced features for online selling, when your website is an online store.

The difference between wordpress plans is also in storage space. You have to check the details of each plan.