"I love that the clear reservoir shows me how full the tank is without having to check the app (although I’m wary of plastic because of its propensity to harbor bacteria), and the stainless steel reservoir helps keep germs at bay. Unlike the other cordless we tested, this one had a solid range in front of it and started the flow of water before the cats approached, so they weren’t startled when drinking. It’s connected to an app, which like the others on this list, gives reminders of when the water’s low, the fountain needs cleaning, or the filter needs replacing.“