Bluetooth is used for short-range communication with other devices, such as a Bluetooth-enabled cell phone (for internet access), keyboard, printer, etc. WiFi is used for connecting to the internet wirelessly, as long as you are within the range of a wireless network or at a hotspot. Basically a ''good PDA'' doesn't need to have either, but it's always nice to have such options. Low-end PocketPCs sometimes have Bluetooth, mid-ranged PDAs have Bluetooth and sometimes WiFi, and all high-end units have both technologies. For information about how to access the internet using both of these wireless radios, click here.
When it comes to playing music and video, just about any PocketPC is up to the challenge. However, faster processors will provide better quality video, and of course the Dell Axim X50v's multimedia accelerator can't hurt. Another major factor is the size of your SD/CF cards...it's recommended you have at least a 512MB, if not a 1GB, memory card so that you can fit a full-length video on it without losing too much quality. And lets not forget a program that will convert and play the video into a readable/useable format. Personally I prefer Pocket DVD, but you can search for a cheaper option if you like.
Now, since you didn't mention a price range, I'll finish by recommending the Axim X50v as the best PocketPC for the job, and the Dell Axim line in general, as Axims tend to be $100 less than HP's Ipaqs with similar specs. Feel free to click here to see the entire Axim line, and here for the selection of iPaqs.
Hope this helps,
hi, i need to find a pocket pc with wireless internet and able to play music and videos (preferably full lenth movies) and able to view pictures. i am also unclear about the bluetooth and WiFi (is it necessary to have them both in order to have a good pda).
any help would be great...thanks