These, however, should be all changes you're familiar with, especially if you've been keeping an eye on our news feed. That's why we thought we'd put together a list of noteworthy changes that didn't get quite as much attention – minor changes that you might have missed. These include under-the-hood upgrades to the smartphones' radios as well as improvements to their video recording capabilities. Some new activity tracking goodies you might not known about have also been thrown in. And there's also a small detail about the size and weight of the iPhone 6s and iPhone 6s Plus that can't go unmentioned. Flip through the slideshow below to learn more.