Philips Sonicare ProtectiveClean 4100 delivers 31,000 strokes per minute (per Philips) and a pressure sensor that reduces gum damage by 30% (per Consumer Reports), clearly outperforming Quip’s 2,500 strokes/min and lack of pressure feedback. Quip, however, offers a longer 21‑day battery life (per Quip) and a lower price point, making it a better value for casual users (per Wirecutter). Overall,...