Microsoft has published on Technet the service description for OneDrive for business with Office Online, SharePoint Online plan 1 and SharePoint Online plan 2 :

• Links to plans of Office 365
• Links to OneDrive for Business plans
• System requirements on the client side
• OneDrive for Business limits

and a table with all features for

• OneDrive for Business with Office Online
• SharePoint Online Plan 1
• SharePoint Online Plan 2