The difference between Oral B kids brushes 3+ versus 6+ age is that the 6+ includes pulsations, which makes them clean via non-contact (like a sonic brush) by pulsing fluid between the teeth. The primary mode of cleaning is by rotation/oscillation, but the best clean happens with pulsations also. Basically, you still need to use this brush like a manual toothbrush (scrubbing in circular motions) versus the 6+ which allows the brush to do the work (you just run the brush along the teeth like you do an adult brush). This may be a good introduction for a young (3-5yrs) child to an electric brush and some movement, but it won’t clean well on its own. If you just want app connectivity and don’t care about adding movements, try a colgate hum manual toothbrush – much better value and still great educational tool via the app.

My recommended “smart brush” for ages 3-5 is colgate hum, but you can go with this one if your child really wants some movements. If your child is able to tolerate true pulsation cleaning, go with he OralB kids 6+ instead as it also offers app capability and gives the best clean.

If your child is aged 6-7 and beginning to brush on their own, still check in frequently with disclosing tablets to be sure that a child is brushing thoroughly when brushing solo (not until age 7ish when he can tie his shoes independently, until then – supervision is recommended because their dexterity is insufficient).