If you want a free, automatic way to synchronize contacts between your Outlook PCs and your Android devices (without installing any third party software or apps), do a Google search on "We can now synchronize Outlook & Android" to find my how-to guide.
I used to use MyPhoneExplorer but it only synchronizes 16 of Outlook's most commonly used fields, and it only does so manually, and only when you're on the same network as your PC. It does not synchronize fields like "Business2 phone", "Categories", etc, and if you're not careful, it can delete them from Outlook (as it did to my contacts).