Buyer's guide
Automatic cat feeders
An automatic feeder is a machine that stands between your cat and food while you are asleep or out. That is a higher bar than most gadgets have to clear, and it is why the failure modes matter more than the feature list. We have not named specific feeders yet — when we have used one long enough to say something honest about it, it goes here with its downsides listed.
What actually matters
Whether it jams with your kibble
Most feeders dispense with a rotating drum or an auger sized for medium, round kibble. Large, flat, or oddly shaped pieces bridge across the opening and stop the flow, and the machine has no idea it has failed. Check the kibble size a feeder is rated for against the food you actually buy before anything else.
What happens when the power goes out
A mains-only feeder is a bowl during a power cut. Battery backup is the single feature most worth paying for, because the whole point of the machine is that it works when you are not there to notice it did not.
Portion accuracy, and portion drift
Dispensed amounts are approximate, and they drift as the hopper empties and the food settles. If your cat is on a measured diet, weigh a few dispensed portions when the hopper is full and again when it is nearly empty. The difference is usually larger than the marketing suggests.
Whether a determined cat can open it
A cat that has worked out the hopper lid will eat the entire supply. Look for a latching lid rather than a resting one, and a body heavy or wide enough that it cannot be tipped.
Cleaning
Anything holding wet food needs cleaning daily, and anything holding dry food needs it weekly or the oils go rancid. If the bowl and chute do not come out without tools, you will not do it as often as you should.
Whether the app is required
Some feeders schedule on the device; others need a phone app and a working internet connection. App-only models stop being schedulable if the company shuts the service down. If that matters to you, buy one with physical controls.
One thing no feeder fixes
A feeder controls when food appears. It does not control how fast a cat eats it, and it will not stop a second cat from eating the first cat's portion. If you have a household where one animal eats everything, a scheduled feeder alone will not solve it, and no amount of money spent on a nicer one will change that.