ZTE nubia X

Fully functional second display ; Upgraded selfie game with 16MP + 24MP main cameras ; Excellent spec sheet

Unclear when, or if, it will launch globally ; Will we even have enough uses for a second screen? ; Last year's Snapdragon processor

The Nubia X is a high-specced midrange smartphone in its own right, but with two screens, it's a great choice for notch-haters and selfie lovers.