Differences Between Real iPhone and iPhone Clone?

URGENT: Hello there, I wanted to ask a few questions about real iPhone and the clones. I'm planning to buy a clone iPhone 6s but I'm concerned about some stuffs like;

1) Can you call or text someone with the clone one?

2) Will it get easily broken when came in contact with hot water or when it drops on the floor?

3) The SIM card, is it possible to use the SIM card from my old phone? If I could, will the apps/songs I downloaded on the SIM card function properly on the clone iPhone like it. Supposed to on normal phones?

4) And lastly, if I wanted to buy earphones and chargers do I buy the original ones or the fake ones too?

Can't make an instagram account on new iphone 6s?

I purchased a new iPhone 6s last week. I created one instagram account and now i can't make another. I know there's a limit, but i have only made one! On my other devices, i was able to make maybe five or six, but i can't make any more than one on my brand new phone. I have deleted the app, reinstalled it, and restarted my phone. This did not work.

How to stop My iPhone 4 power off problem?

IIm using iPhone 4. From few days ago my phone shutting down repeatedly when I want to make a call or text to anyone and an apple logo stuck on the screen. When I use Wi-Fi and other services phone remain switch on and interestingly while phone is connected to the charger I can make a call or text.
What can I do now?

Broken iPhone uploading pictures?

My lcd plates are all messed up and i can't see anything on my iPhone. I have 6000+ photos on it. Whenever i plug it into my mac the option of uploading the photos isn't available anymore. Is there any other way i can upload them onto my mac?

Where else can I find my iPhone 5 model number?

I have a casing that blocks the back of my iPhone and can't be removed easily and put back. Is there another way to find the model number (eg. A1428) without looking on the back of the iPhone?