Treating a small area is possible with Fractora. Care must be done to allow for skin cooling in between passes. I'm a fan of Infini when compared to Fractora. Is is safer (insulated needles), fractional heating, and variable depths. There is one Fractora tip that is insulated, the heating is bulk (energy needs to cycle back to footplates), and the depths are fixed with each handpiece. Also the technique is performed by pressing the needles into the skin vs Infini's solonoid insertion of needles.