How to get my dad too buy me an iPhone?

So I've had an iPhone 6 which I cracked. So my parents downgraded me to a Samsung s4 then I cracked it. Then he got me the same phone and I actually kept it for awhile until the digitizer cracked. And today he told me he's not getting me a new phone and he's going to get a me a flip phone. I honestly don't believe him cause he's told me that before and it didn't happen. But I really need to convince him to get me an iPhone. I've been doing really good in school and I even got upgraded to English honors. But I need more to convince them. Please help. Also I plan on getting an iPhone 6s certified refurbished on Black Friday so it's cheaper.

If you are that clumsy then a flip phone sounds like a good idea!

Either start paying for repairs yourself or start taking better care of your phones!
They do not "crack" on their own, it's bad handling and plain carelessness.

I've had mobile phones since they first came out, including several smart phones/iphones over the last few years and I've _never_ broken one in any way.

Start taking responsibility for your own actions and you will get the appropriate level of respect from your parents.

No, he won't, because you're clumsy enough to keep breaking them. I've never broken a single phone, ever. Neither has my wife.

I'd also expect an English honors student to know the differences between "too" and "to", "awhile" and "a while" and "cause" and "because". There are also a number of other really basic usage and grammar faults; I'm not trying to pick on you but you really can't use your mediocre English language skills to justify your demands.