Amazon.com : Zhiyun Smooth-Q 3-Axis Handheld Gimbal Stabilizer for Smartphone Like iPhone 7 Plus 6 Plus Samsung Galaxy S7 S6 S5 Wireless Control Vertical Shooting Panorama Mode (Black) : Camera & Photo
I like it because it does a few things the pocket can't. 360 spin on the head. Screw mount on the bottom. More range of motion than the pocket. Longer battery. But the size is what makes it too cumbersome to use most of the time. The pocket is just so handy. It's portability makes up for its shortcomings.