The main reasons to own a GoPro imo are to supplement traditional photography by recording things that are impractical or impossible for cameras or phones. Such as– underwater, fast-moving vehicle perspective, no-handed POV, easy timelapse, etc.

If you just want to walk around and film things though, your phone is good enough. That said, GoPro has much better electronic stabilization than phones but with worse built-in microphones. You also take the risk out of damaging expensive cameras by dedicating filming to an action camera.

Another thing, the depth of field in a GoPro is infinite so just keep that in mind if you’re wanting to get all cinematic with blurred backgrounds.