A smartphone stabilizer helps the mobile filmmaker record smooth footage. But its bulk and awkward shape can make it challenging to pack. DJI said it went back to the drawing board to create the Osmos Mobile 3, a lightweight, foldable 3-axis gimbal that went on sale today. DJI Osmos Mobile 3 is light on the wallet ($119) without going light on the specs necessary to capture stable, professional footage. photos reportedly showing a Mavic Mini drone leaked online.