Beurer's SC range vibrates tens of thousands of times a minute, so the bristles sweep the tooth surface instead of scrubbing in circles. Gentler on sensitive gums, crowns and braces, with a two-minute timer that stops you cutting it short. The SC 50 adds four programmes and a travel case.

Refills: all SC brush heads fit every Beurer SC sonic toothbrush, and all Philips Sonicare toothbrushes except Philips One and Kids.