Drone maker DJI has announced a brand new product in its smartphone gimbal lineup--the DJI Osmo Mobile 4. The new generation gets some major improvements, like a magnetic attachment system that does away with the need to manually clamp and re-balance the smartphone in between shoots. The OM4 also folds like its immediate predecessor, and retains the button layout and 15-hour battery that lets the device be used as a power bank for your smartphone. DJI says the motor has been upgraded to handle larger phones better, and features like Dynamic Zoom have been improved. The DJI Osmo Mobile 4 is available in the US for $149, but Indian pricing and availability is as yet unknown.