It didn't take me much time to decide to get an iPhone 5 after the frustration that Android has brought me: system is laggy and irresponsive, battery is draining fast, and the Android apps just don't work well.
I got my iPhone 5 on Monday, as soon as I came back in Singapore. Having been using the phone for the past 5 days, all I want to say is that it is simply amazing and such a delight to use. But nothing is perfect, here are some things I listed that might be useful for you to consider buying an iPhone 5. For all the relevant specifications, I am sure you'll be able to find them online easily.