Should I buy iPhone 5S 15GB instead of OnePlus Two?

I did used android for more than 2 years(Galaxy S3) and it was a really good experience.
But it died later and after months without a beast phone in my pocket now I'm using a Moto E. And it's good atleast for my use. All I want is Music, some small games whatsapp, Good camera and that's I've found that I don't need much space now.

But on the other I only have the budget for OnePlus Two which is another Beast or "FLAGSHIP KILLER" but I'm bored with android now.

So I can wait for 2 months and can buy iPhone.
So please let me know some suggestions

NEEDS:
1.Whatsapp
2. Good Camera
3.Music
4.Small Games
5. Maybe movies sometimes.

PROBLEM:
LOW BUDGET

If I had to choose I'd choose iPhone. I had the iPhone 5S before I got my iPhone 6 and it was overall pretty good.

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