In a nod to its filmmaker-centric design, the Smooth-4’s large focus wheel even has a witness mark that can be lined up to focus marks you place on its textured band. The wheel is located on the left side of the handgrip, with a button placed to its lower right that lets you toggle between focus and zoom functions, with a button light indicating zoom mode. Scroll and press to select settings with the central Menu/Return button, or choose the Parameter Display button to switch between close shooting, still photo, and full-auto modes. The Smooth-4 offers 300° of pan and 240° of tilt and roll for nimbly capturing your action shots, or for smoothly gliding along more tranquil scenes. Choose between Pan-Following, Locking, Full-Follow, or the full-speed PhoneGo mode to adjust your level of axis control while shooting.

Powered by rechargeable lithium-ion batteries, the Smooth-4 features a maximum runtime of up to 12 hours. A USB Type-C port on the handgrip enables you to add a separately available power pack to extend your shooting time even further. An LED display indicates your remaining power, and an output port enables you to charge your phone while shooting with the stabilizer. The Zhiyun-Tech Smooth-4 Smartphone Stabilizer includes a mini tripod, carrying case, and a USB cable. A single 1/4″-20 female thread on the handgrip bottom can be used to mount the stabilizer onto the included tripod or other support, or to attach a compatible accessory.