Which one is the best pocket size external hard drive?

Salam,

Lately when I've uploaded a lot photos into my net book, there's a warning that keep appears on the screen saying "Your disc capacity is running low. You need to delete some files". (well something like that). Since I'm not really expert in understanding the terminologies in computer/technology, I asked my hubby's opinion. He's asked me to buy a pocket size external hard drive.

Now.......................the problem is..............................I'm not so confident in choosing the right kind of external hard drive as I'm not sure which one is the best for me. I only need the expansion in storing more photos, personal videos and maybe some songs too. I don't think I want to upload any movies as I rather go out with my family members to a cinema to watch movies. tu pun bukan selalu gi tengok 


SO......LADIES AND GENTLEMEN OUT THERE...............PLEASE IF YOU ARE KIND ENOUGH...............PLEASE SHARE YOUR OPINION ON THIS.

ADVICE ME ON THE BEST POCKET SIZE EXTERNAL HARD DRIVE:
(I've complied these info from GOOGLE)

1.
The Canvio is a small HDD with up to 1TB of storage space that is sized for the user to be able to carry in a pocket. The drive is offered in five different colors and four different capacities from 500GB to 1TB. The HDD connects to the computer via USB.
It ships with backup software installed called NTI BackupNow EZ that offers step-by-step restore functionality of data on the drive in the event of a computer crash.


2.

Technical Details

• Built-in, retractable USB 2.0 cable; powered by your computer so you don't need a separate power supply
• Hot-pluggable USB 2.0 interface enables data transfer up to 480 Mbps
• 3,600 rpm drive with 2 MB cache consistently delivers the high performance you need
• Worry-free 1-year warranty, plus free technical advice even after your warranty ends
• Comes complete with built-in, retractable 2.0 cable, quick connect guide, and utilities CD

3.
 

 
Available in 500GB and 1TB capacities, the Rikiki USB 3.0  is the world's smallest USB 3.0 mobile hard drive at 2.9" x 4.6" x 0.52". The cheapest Rikiki USB 3.0 is priced at $99.99. Coming to the slightly bigger Minimus USB 3.0 desktop hard drive, it is available in 1TB and 2TB capacities, with the former priced at $129.99.


4.

                    

 

Buffalo MiniStation TurboUSB 500GB Features:

• Buffalo’s proprietary TurboUSB technology for super-speedy file transfer.
• Wrap-around cable for neat and easy storage.
• Tough armoured outer case and shock-absorbent internal design.
• Supports USB 2.0/1.1.
• Memeo AutoBackup Software for improved backup options, including regular system backup, scheduled backup and password protection.
• Buffalo’s exclusive Secure Lock Ware Encryption software for Windows.
• Support for backup program Time Machine.

NOW..........................................................................................................................................................

ANY ADVICE IS MUCH APPRECIATED AS I'M A BIT NEXT TO CLUELESS TO WHICH ONE IS THE BEST TO SUIT MY NEEDS. YOU CAN ALSO SHARE YOUR OWN EXPERIENCES IN USING ANY BRAND OF EXTERNAL HARD DRIVE.

THANKS.