Ultra Compact

Ultra Compact
What is the difference beteween compact and Ultra Compact cameras?

Is it better than the other? What should I buy? Or basically the same?

There are basically the same. It depends on how small and thin that you want to go. Both may have the same technology but will cost the ultra-compact more for the convenience of being light and small. The smaller the lens of the light can go in. less image quality and responsiveness will suffer a little.

NEX-5 and NEX-3 ultra Compact Digital cameras by Sony