It’s smaller than online. It is prefect of cats. Now as for dogs it’s too small from pitbull. The dogs that this one would be great for is like Chihuahua and Pomeranians. A few of the downsides I would personally say would be that there is no button to refill it without having to hold the lock button 1.5 seconds and then pressing it again to dispense more water after someone drink all the water from the bowl. Another downside is that there is no auto sensor. It’d be great if they could add that or if I could find one with an auto sensor at the same price. Another downside that is the time framing of water. It goes from three hours six hours 12 hours. I personally wish that it could be like an hour instead of three hours and that’s mostly because of the fact I have a fat lazy cat that is very needy and is upset now when another cat drinks from the bowl and the water still there. So if I’m home, I have to mainly dump it refill it and then he drinks. It is a very spoiled rotten cat but I love him. I got this on 30 April. I charged it when I got it. I haven’t had to charge it and it is currently 7 May. So so far it is where I haven’t had a charge it within two weeks, which is a good thing. I was kind of worried about having to keep it plugged in cause I don’t want to keep it plugged in. It’s great that I can just charge it that one time and then I haven’t had to charge it since. It was awesome very easy to set up very easy to fill and the best part about it is my slimy. Fear of water and saliva from the animals is no longer a nightmare. So at the end of the day before I go to bed, I take the waste water. I dump it out and rinse it off dry it and then put it back under. Oh, it’s all good and then the refilling process of the top part is great too. And it looks pretty cool. It’s pretty compact. It’s it takes up the same amount of space that my old water fountain took up just not a big enough bowl for my pitbull to drink water. We have to fill the water bowl like three times for the pitbull to get a substantial drink.But other than that, I am happy with my purchase. I just wish they had a bigger bowl. I’m gonna keep an eye out for a bigger bowl for the pitbull because I like the idea of this no filter just easier to clean no smell. It’s great. it is really really great in my opinion so the fact I don’t have to buy filters or touched nasty filters anymore.