What is the difference between O365 and Hosted Exchange?

In all O365 plans you will get email, and office and other products, whereas Hosted Exchange only provides emails.

O365 contains some or all of these products:

• Outlook
• Word
• Excel
• PowerPoint
• SharePoint
• Publisher
• Skype
• OneDrive
• More

Hosted Exchange includes:

• Outlook (i.e. email, contact, calendar, etc.)