Venus Legacy VS Ultherapy for jaw line?

My recommendation for all my patients that are candidates for RF treatments is: thermage (I like better than Ultherapy) first and then follow 2-3 weeks later with a Venus series of treatments.  As well I do botox and fraxel to the neck for rejuvenation.  Best, Dr. Emer.

Venus Freeze (Legacy) is a form of radiofrequency (RF), which is also used in Thermage and other noninvasive treatments. Ultherapy uses microfocused ultrasound. Both treatments are based on the idea of thermally stimulating a healing response that leads to collagen remodeling. I switched from RF to Ulthera a few years ago because it can be more precisely focused and targeted where it needs to be. Ulthera remains the only FDA-approved noninvasive device for skin lifting.

I have seen incredible results with ultherapy in the jawline, I am unfamiliar with Venus Legacy and spend a significant amount of time looking at new technologies at the national meetings. I generally recommend that patients stick to the noninvasive treatments for facial laxity until they get significantly older than 31 to undergo any kind of face lifting surgery.