M1530 Bluetooth and Wireless USB options

While building a M1530 laptop, i found these options in the Bluetooth and Wireless USB section. I don't know the difference between them

*Built-in Wireless USB capability [$40 or $2/month1]
Note : Requires WUSB Hub or other WUSB device for full functionality


*Dell Wireless 355 Bluetooth Internal (2.0+Enhanced Data Rate) [$20 or $1/month1]

Could anyone please tell me the difference?

Thanks

 

This wikipedia article will answer your question (especially the WUSB vs. Bluetooth section). In short, Wireless USB is a new technology used to connect USB devices without using a physical wire; however the USB device has to support this technology, but so far only a handful of such devices exists that can directly connect to a PC. But there are WUSB hubs [i.e. Belkin, D-Link](similar to normal USB hubs, but the hub is connected to the PC wirelessly) so you can even use existing standard USB devices over WUSB

Whereas Bluetooth is a different (again wireless) technology used to connect various devices to a PC (or more commonly, with one another) .Bluetooth is usually used for pairing Wireless Headsets, connecting mobile phones/PDAs, Mouse & Keyboards etc.. Data transfer rate of Bluetooth is far less compared to WUSB.

 

And also, bluetooth transfers at 3mbps while WUSB is 1gbps

 

Not sure how well the built-in wireless USB feature works, but it's for radio frequency wireless devices. I've read good and bad stuff about it... such as the wired 2.0 USB connection is still much faster. I'm sure the built-in wireless USB is more expensive right now because it's a newer feature that was just made available for the laptop compared to the widely available bluetooth feature. The wireless bluetooth is for bluetooth devices. Both offer wireless devices such as wireless RF mice or bluetooth mice.

 

Thanks for the replies
I thought they were the same thong and that there won't be any benefit having both of them. But as i see each has what it does

 

I dunno about WUSB, but in terms of bluetooth, it is very easy to install when you need it. So if you really dont use bluetooth devices or anything like that, you can always opt to get the card later and install it. Its very simple and cheap.

 

Supposely, using the WUSB... you don't need the usually included "dongles" for connectivity. I don't know how well that works though so I probably won't give up my Logitech wireless mouse 2.4 GHZ receiver that I plug into the laptop everytime I use the mouse. I have a Logitech V470 bluetooth mouse, and it connects to the laptop's built-in bluetooth just fine... dongle-free! I'm just currently very happy with my RF mouse, which is a Logitech VX Revolution wireless mouse so I don't use the bluetooth mouse very often.