iOS 9 & Software Support
Finally, you should know that the iPhone 6 is getting iOS 9 later this year. And with it, a number of new features including increased battery life. Apple will tack on an extra hour of battery life in addition to some new feature aimed at battery conservation. We'd expect the iPhone 6s Plus to benefit as well.
The other thing to know is that iOS 9 will be the iPhone 6's first update. Apple tends to support iPhones for at least three years which means it should have at least two left. That helps to make the iPhone 6 and its cheaper price extremely attractive.
The iPhone 6s Plus will probably feature some unique iOS 9 software features and it will also likely get one more year of software support. It will be up to you to decide if those perks are worth the extra money and the wait for its launch.
This article may contain affiliate links. Click here for more details.