Question: what is the difference between oral b pro and oral b smart?
Answer: Key Differences The Smart 4 4000 comes with 1 additional cleaning modes over the Pro 3000 (Daily Clean, Sensitive and Whitening compared to the 3000's Daily Clean and Sensitive). The Smart 4 4000 comes with 2 x CrossAction brush heads included compared to the 1 x CrossAction and 1 x 3D White provided with the 3000.