Which smartphone is more secure Iphone or Android?

I need to decide whether or not I will push all of my employees to Apple or Android. Right now we’re about an even split and I’d really like to have them all on one side. It really comes down to which phone is more secure, The new iPhones or new Androids? These phones are only used for email connectivity.

  • What features make one more safe than the other?
  • What vulnerabilities have been seen between these two phones?
  • Which is more security oriented?