I have an Android HTC HD Smart phone and now will change to iPhone6S so i got a few questions over this transfer. 1. What options of the Android will i miss when going over to IOS? 2. How will i over come those features i will miss? 3. How will i transfer my contacts to the IOS? 4. Will i need to charge the iPhone on a daily basis, with the HTC HD, on the use i did (small use) i was charging it almost every 2-3days!