The phrase "zoom feature" refers to a tool or function that allows you to make something on your computer, phone, or camera bigger or smaller to see more details or get a closer look. Full definition
They also feature the highly popular depth effect and 2x optical zoom features. (themrphone.com)
Like most smartphones with a dual - camera setup, there's a portrait mode and a 2x hybrid zoom feature for close ups. (digitaltrends.com)
This also eliminates the option of optical 2x zoom feature, however though, the 2x function still shows up in the camera UI using digital zoom, that results in noticeable quality loss. (techradar.com)