Look Out!
When purchasing a PDA, there are several things you should keep in mind to avoid buying a PDA that won't meet your needs. Here are some of the most common things to think about:

Screen
Check out the size of the screen. Is it easy to write on or does it feel cramped? Can you see the screen clearly under various lighting conditions?

Operating systems
Is it easy to open and close applications? Can you have multiple applications running at the same time?

Data synchronization
Will your PDA synchronize with your PC and favorite personal information management software? For example, some models do not sync with Microsoft Outlook unless you buy an add-on.

Memory
Is there sufficient memory for your use? If you download application programs, some take up large amounts of memory? Is the memory upgradeable?

Expandability
Does your PDA have expansion slots or options for peripheral devices? Consider what types of communications ports that you require. Will you need more memory?

Software
Make sure that the included software suits your needs!