When comparing Dr. Pen M8s and A6s, here are five important things you should know: 1. Technology and Features: – The Dr. Pen M8s is equipped with advanced technology, featuring an adjustable needle speed and depth settings. This allows for customized treatments based on the specific needs of the user. – The A6s, while also effective, may have more basic features and settings. It generally provides good results but lacks some of the advanced customization options that the M8s offers....