Yes. A Canon G12 still offers several advantages over a phone, especially if you want more photographic control.

Useful strengths mentioned for the G12 include:

• RAW capture, which gives more flexibility for editing than heavily processed phone images
• A real zoom lens, so you can frame in-camera instead of relying on cropping
• A hot shoe for external flash
• A built-in ND filter for shooting wide open in bright light
• An optical viewfinder, helpful in bright sunlight
• Physical dials and controls for changing settings quickly
• An articulated screen for high- or low-angle shooting

Phones are extremely convenient and often produce attractive results straight from the device, but they also tend to rely on strong computational processing. That can look good on a phone screen yet be less convincing up close or at larger sizes.

So the G12 is not a paperweight if you value manual control, flash use, RAW workflow, optical zoom, and handling. If you prefer maximum convenience and don’t notice or care about those differences, the phone may be the better choice for you.