Options and quality.
A higher end DLSR is going to get much better pictures than most popular models of phones.
Options- a DLSR can adjust shutter speed, exposure, ISO, color temperature, you can set the FPS of videos, etc…
Kinda under options, but you can change lenses. For nearby, far away, “get almost everything in focus”, “get almost nothing in focus”, etc…
And a big thing is _manual control._ most phones don’t give you control over focus, shutter speed, etc… DLSRs do. Wanna do a long exposure shoot? Easy.
Latest Answers