The majority of brushes offer two features– a timer and a pressure sensor. I looked for timers that made it effortless to keep brushing for the dentist-recommended two minutes each time. I looked out for alerts, including automatic shutoff and whether the brush nudged me to change quadrants. For pressure sensors, which alert you if… Continue reading Amazon Oral-B sale up to $80 off smart brushes, brush head replacements, more from $12