The manufacturers of the various handheld devices often have specifications and tutorials on their websites. Companies that sell the devices also may have this information and may have comparisons of the various devices.
Palm Pilot
The site HowStuffWorks would be a good start in learning more about electronic devices. You can learn how these electronic devices work and how they perform.
There are a variety of brands that offer handheld PDA devices. They can range in size, shape and color. These brands include Dell, HP, Sony and Nokia.
There are several online sites where one can find more information about Motorola handheld radios. Some of these sites are "Motorolasolutions" and "Factoryoutletstore".
There is no such thing as a "handheld card". Do you mean a handheld card-reader? These electronic devices allow you to take credit card payments. They're often used at restaurants and I even went to a yard sale once where the owner could take cards.
Garmin Geko 201 Handheld GPS Receiver is one of the cheapest GPS devices out there for under $90.00.
Yes absolutely! Amazon sells just about anything I mean even groceries! Handheld GPS systems are one the popular items they sell at Amazon. Check it out!!!
The handhelp Garmin gives you the same features as the original Garmin and more. Some of the handheld one's have integrated cameras which is not available in the original Garmin.
There are many places where one can purchase a handheld anemometer. One could purchase a handheld anemometer from online shops such as Amazon or eBay.
There are many places where one can purchase handheld massagers. One can purchase handheld massagers at popular on the web sources such as Macy's, JC Penney, and Bed Bath and Beyond.
To learn more about a portable gps device one can either ask a salesperson of such devices at a local electronics store or go online and research it themselves. It would be much easier to go online and you can get other customer reviews in doing such to find out which one is right for you.
Amazon offers the Palm One IIIc Personal handheld organizer for $16.15 compared to the Palm Z22 handheld for $249.99. They also have the Palm one IIIxe personal handheld organizer for $24.75. The wisest route may be to shop around.