Which iphone 5s colour shall i get?

Help ME! I need to buy an iphone 5s but I don't know which colour. They all look beautiful. I like the grey because it makes the screen looks bigger. I like gold as well because it gives a luxury look. But I don't know what to get and which is the most popular colour?

Can you increase the amount of memory on an IPhone?

I'm planning to get an IPhone 4S soon. The most memory that phone companies offer for it now is only 16 GBs. I was wondering if there's an option to increase the amount of memory on it & how much it would cost? Much appreciation for your help!

How to turn iPhone case into case for another phone?

I won a hunger games competition and one of the things i won was a case for the iPhone 4. Now, i have a galaxy nexus and there are absolutely no cases for my phone. So i was wondering if i could craft this case to fit my phone. I have a transparent case that fits my phone that i can use for the process.

What handheld/portable devices picks up clean bass?

When I go to another Bassnectar concert (lots of bass), I would like to use either an iPod Touch 4-gen, an iPhone 4s, or a device under $500 dollars (can be a little over). I do want it to pick up all the other ranges, but be able to pick up bass, cleanly. This is YouTube video demonstrates the type of sound I want the device to pick up: I have already asked the owner of this video, and they did not respond back. Please respond back will a reasonable to perfect answer about the perfect device to get.

What's the best activity/sleep/exercise tracking wristband I can get for the $?

In trying to lose weight and get in better shape. I've always liked gadgets and know there are a bunch of bracelets / wristbands that track your sleeping, calories, activity and exercise. I only have $100 to spend.It'd be cool if it could synch with and Android smartphone because that's what I have. I know some synch with iPhones. I know Nike makes one but its expensive and I've heard bad things.

Can anyone suggest anything?

How to sync my iphone with my macbook air without deleting all my old music?

I had a toshiba which had all of my music on and i had that music on my iPhone but know i have a mac and I want to put a new album onto my phone but whenever I try to my mac air says that I will delete all my other music. I have tried clicking manually managing my music but then when i click apply it says it will delete all my other music.