I love the additional screen real estate my iPhone 6 Plus gives me, but it makes one-handed usage very difficult. I can reach about halfway up the display comfortably, but anything higher than that—say, when I need to tap an app's back button—and I have to shimmy my hand up the device.
Halo Back is a new iPhone accessory that wants to help significantly reduce the need for shimmying. Billed as the world's first "smart" screen protector, the Halo attaches to the front of your iPhone 6 or 6 Plus, and gives you a virtual back button within thumb's reach—left of the Home button.