Waterpik Cordless Advanced

The best cordless — portable flossing with three pressure settings, a rechargeable battery (up to four weeks per charge, per Waterpik), and waterproof shower use, ideal for travel and small bathrooms. Smaller 7 oz reservoir (may need refilling) and less pressure range than countertop, but the convenience standout.

The Waterpik Cordless Advanced is the best pick for travel, small bathrooms, or anyone without counter space, delivering water flossing in a portable, rechargeable handheld. It has three pressure settings, a 7 oz reservoir (about 45 seconds of flossing), up to four weeks per charge (Waterpik's figures), and a waterproof design for shower use (which neatly solves the mess). It doesn't fold, but it's compact for travel and, being Waterpik, well-supported. It's the choice for valuing portability and a clutter-free bathroom over the countertop's maximum pressure and capacity. The smaller reservoir may need refilling mid-session, the pressure range and run-time are less than a plug-in unit, and you must keep it charged — but for cordless convenience, it's the standout.

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Waterpik Cordless Advanced Review