What’s is iPhone 6 latest iOS
What’s the latest iOS of iPhone 6
The last iOS version of the iPhone 6 is iOS 12.5.7. Your iPhone cannot update beyond iOS 12.5.7. Your internal hardware is too old to support iOS 13 or later.
The iPhone 6 is over 8 years old.
iPhone 8 and later models are capable of supporting iOS 16.
Here is a list of unsupported iPhones with max iOS supported:
Model Architecture Introduced Max supported iOS
iPhone (1st) 32-bit June 2007 iOS 3.1.3
iPhone 3G 32-bit July 2008 iOS 4.2.1
iPhone 3GS 32-bit June 2009 iOS 6.1.6
iPhone 4 32-bit June 2010 iOS 7.1.2
iPhone 4S 32-bit October 2011 iOS 9.3.6
iPhone 5 32-bit September 2012 iOS 10.3.4
iPhone 5C 32-bit September 2013 iOS 10.3.3
iPhone 5S 64-bit September 2013 iOS 12.5.7
iPhone 6 64-bit September 2014 iOS 12.5.7 <- Your iPhone model
iPhone 6 Plus 64-bit September 2014 iOS 12.5.7
iPhone 6S 64-bit September 2015 iOS 15.7.3
iPhone 6S Plus 64-bit September 2015 iOS 15.7.3
iPhone SE (1st) 64-bit March 2016 iOS 15.7.3
iPhone 7 64-bit September 2016 iOS 15.7.3
iPhone 7 Plus 64-bit September 2016 iOS 15.7.3