So you would like to capture even smoother video with your smartphone? The XSPLASH XCAM stabilizer for smartphones can help. It is a handheld 2-axis gimbal with Bluetooth. It has a 1000 mAh battery and works up to 4 hours. XCAM has a pitch axis angle range of 170 degrees.
This smartphone stabilizer supports iPhone 6 Plus and smaller smartphones up to 5.5″. It is expected to ship in October.[Source]