Not quite sure what the difference is there but the iPhone is just an all around more reliable, more stable phone, Updates are regular too, I was waiting ages for Android updates.
I loved my blackberry. I didn't think I would ever replace it with anything other then another blackberry. Until I tried the iPhone 4. And realized how slow my blackberry was and how much I was missing out. Now every time Apple come out with a new iPhone 4s, 5s it's a must have for me. I'm happy to say I have my iPhone 6 plus and love it. Nothing compares to a iPhone for me. iPhone for life is my future.