quip Rechargeable Cordless Water Flosser vs COSLUS C30 Water Flosser

Buy the quip if you want a light, simple flosser with long battery life and a magnetic charger; buy the COSLUS C30 if you want adjustable pressure and a bigger, detachable tank. The quip gives you two modes, a 360º tip and up to 8 weeks per charge, but its battery cannot be replaced and its 4-hour charge is slow. The COSLUS C30 gives you 30–150 PSI across four modes, a 300 ml detachable tank and dual-stream flow, but it weighs 15 oz and is bulkier. Owners rate the quip 4.2 out of 5 from 984 ratings; the COSLUS has fewer owner reports, so its long-term reliability is less proven.

• Choose the quip if you want a light, travel-friendly flosser with two simple modes and weeks of battery life per charge.
• Choose the COSLUS C30 if you want adjustable pressure, four modes and a large detachable tank you can refill and clean easily.