There are two simple rules when it comes to buying memory cards. Make sure you buy one that's compatible with your cell phone. And always buy a card that's at least twice as big as you think you'll need!
If you're in the market for a microSD card, which is favored by many of today's super-slim handsets, you can now buy a massive 8GB of storage. SanDisk offers a five-year warranty and is the world's largest supplier of memory cards, so your data is in safe hands.