Some automatic cat feeders hold several pounds of food, while others only hold a few cups. Less expensive models typically only hold a few meals worth of food, and more costly options may hold over 3 pounds of food. To help you compare models, we've provided the maximum capacity in cups or liters for each of our recommended feeders. While it may seem as though it would be better for a feeder to hold larger amounts of food, smaller containers may help food stay fresh since they'll be refilled more frequently.