The Philips Sonicare ProtectiveClean 6100 outperforms the Waterpik Sensonic Professional in cleaning efficacy (15% better plaque removal per Consumer Reports) and offers three distinct modes versus two (CNET). While both include pressure sensors (RTINGS), the Sonicare’s broader brush‑head lineup and faster charging give it a clear advantage. For users who need a budget‑friendly option without t...