That should probably work with a cell phone. I would NEVER do a longer video shop without a body mounted, preferably button, camera. Be sure to practice, practice, practice to keep the target in the picture and to steady the phone in a pocket of handbag. It takes a lot to overcome hand tremors in cell phone video.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.