The Petkit Eversweet 3 is a cordless-pump fountain with a detachable top tray, so the whole unit comes apart for cleaning. The Petlibro Dockstream favours a stainless-steel surface and a quiet pump, with some versions adding wireless operation and water-quality sensing.

Both target the same need: encouraging drinking and cutting daily water changes. The Eversweet 3 is smaller and fits single cats or compact flats, while the Dockstream's larger tank stretches the refill interval in multi-cat homes, though a full tank is heavier to carry.

The shared risk is hidden grime in the pump and water path, and filters are a recurring cost that hurts water quality if overdue. A cordless pump removes cable clutter but needs charging; in a power cut both fall back to a static bowl.

Choose by cleaning habit and the cat's drinking style: a simple structure if you will strip it weekly, a larger tank if you want longer intervals. A sudden change in water intake can signal illness, so log it and ask a veterinarian rather than only changing hardware.