Burst Water Flosser vs Waterpik Aquarius WP-660

These two are the same machine under different names: identical dimensions, weight, flow rate, pulse rate, pressure settings, tip count and reservoir. The Burst version is the cordless, shower-ready one with a rechargeable battery rated up to 80 days per charge; the Waterpik Aquarius WP-660 is the corded countertop model with a 52-inch cord, a 1-minute timer with 30-second pacer, and a Hydro-Pulse massage mode. Buy the Burst if you want to floss in the shower or travel without a cord; buy the Aquarius if you want a fixed station with a timer and don't mind the cord. Owners of both rate cleaning performance similarly; the choice comes down to cordless convenience versus a plugged-in countertop unit.

• Choose the Water Flosser if you want a cordless, water-resistant unit you can use in the shower and take on trips, with a battery rated up to 80 days per charge.
• Choose the Waterpik Aquarius WP-660 if you want a corded countertop flosser with a 1-minute timer, 30-second pacer and a dedicated gum-massage mode.