Which smart feeder works best for multiple cats with different diets?

For households where one cat steals another's food, the consensus on r/Petlibro and cats.com coverage points to RFID/microchip-gated feeders like the PETLIBRO One RFID, which only opens for the tagged cat. Reviewers note tradeoffs: the included collar tag isn't fully waterproof, only one tag ships per feeder, and some cats dislike the collar.