Should I get an extended anatomical chin implant or a mandibular pre jowl chin implant? (Photos)

The photos are not clear enough to give you a specific recommendation. However, you have a significantly recessed chin that also appears short. You might benefit from a genioplasty instead of an implant.

Thank you for your question. It really depends on the look you're aiming for. The extended will give you more projection, whereas the pre-jowl gives width without as much projection. Given your photos, I think the extended would give a more natural look. All the best!
-Dr. P

Based on this very limited information, you will need extended chin implant to achieve desired chin, lower face/neck improvement. In person consultation with a board certified plastic surgeon, expert in facial implants, is recommended. Good luck.