Perch & Purr

Feeders, Fountains & Bowls

Microchip Feeder vs Automatic Feeder

These two machines look like competitors and solve unrelated problems. Buying the wrong one is the most common feeder mistake in a multi-cat house.

By Sawyer V.Published Last updated

Affiliate disclosure: we earn a commission if you buy through our links, at no extra cost to you. It never changes which product we rank first — here is how we're funded.

An automatic cat feeder beside a bowl

Everyone in this category says they tested twenty litter boxes. We have not tested any, and we say so. What we do instead: compile the published specs, read the manuals, and do the arithmetic on what this gear costs to run and how it behaves once there is more than one cat using it. Every spec is linked to the document it came from. Prices are checked daily — last verified September 27, 2026. Here is exactly how we pick.

Both machines sit on the kitchen floor and both have a lid that moves. They answer completely different questions, and the question you actually have decides which is money well spent.

Two different problems

A microchip feeder answers who. It reads the cat’s implanted chip or a collar tag and opens the lid only for that cat. Food can sit down all day and still belong to one animal.

An automatic feeder answers when and how much. It holds a reservoir of dry food and drops measured portions on a timer, whether you are home or not. It has no idea which cat is standing in front of it.

What the two publish

Published figures, SureFeed Microchip and PetSafe Smart Feed
SpecificationSureFeed Microchip Pet FeederPetSafe Smart Feed, 2nd Gen
ControlsWho eats -- registered chip or collar tagWhen and how much -- scheduled portions
Capacity400 ml bowl, about two pouches of wet food24 cups (6 L) hopper
Food typesWet and dryDry or semi-moist
PortioningNone -- you fill the bowl1/8 cup to 4 cups, up to 12 meals a day
Identities storedUp to 32Not applicable
Power4 x C cells, 6-month stated battery lifeMains, with the app schedule
Notable extra3-year warrantySlow feed spreads a meal over 15 minutes

Manufacturers' published figures.

What separating two diets actually costs

The arithmetic — The bowl-per-cat rule

A SureFeed stores up to 32 identities, which sounds like a multi-cat solution. It is not, because it is still one bowl: it opens for any registered cat that approaches.

To keep cat A out of cat B’s food you need two units, each registered to one cat. The 32-identity figure is about which cats are allowed at a given bowl, not about serving several cats from one.

So the honest budget for two separated diets is two microchip feeders plus the floor space for two stations, ideally out of sight of one another. Our different diets page lays out that layout.

Buy a microchip feeder if the problem is one cat eating another’s food — and budget one bowl per cat you need to separate. Buy an automatic feeder if the problem is meal timing or portion size while you are out. In a house with one cat on a controlled diet, people often end up running both.

The gear discussed here

The SureFeed Microchip Pet Feeder is the access-control option, and the wet-food capability is what sets it apart: a 400 ml sealed bowl means a pouch can sit down without becoming a free buffet. The honest cons: it does no portioning at all, it runs on 4 C cells rather than mains, and you need one per cat you are separating.

The PetSafe Smart Feed is the scheduling option, with a genuinely large 24-cup hopper and portions from an eighth of a cup up to four cups across as many as twelve meals a day. The slow-feed mode spreading a meal over 15 minutes is the feature most owners end up using. The honest cons: dry or semi-moist food only, and no ability whatsoever to tell your cats apart.

Neither machine is a diet plan. How much a particular cat should eat is a question for your veterinarian, and the Cornell Feline Health Center is where we send readers for anything that touches weight, intake or health rather than hardware.

Which one your house needs

  1. One cat, and you are out all day: automatic feeder. Portion control and timing are the whole problem.
  2. Two cats, same food, one eats too fast: automatic feeder plus a slow feeder bowl, or the slow-feed dispensing mode.
  3. Two cats, different food: microchip feeders, one per cat. Nothing else solves it.
  4. A cat that needs wet food left down safely: microchip feeder, or a refrigerated unit from our wet food feeder page.
  5. You want to know who is eating what: a camera feeder answers that before you spend on access control. Our camera feeder page treats it as a diagnostic instrument.

Compare the two

If you remember one line from this page: a hopper cannot tell cats apart, and a microchip lid cannot tell time. Decide which of those two failures is the one happening in your kitchen, and buy the machine that fixes it. Before either arrives, our introduction guide covers the week that keeps a cat from rejecting the thing outright.

The gear discussed here

Specs are the manufacturer's own, linked to the page they came from. Prices come from a live daily check; where we have no verified price we say so rather than print a stale one.

1. One cat on a prescription diet

SureFeed Microchip Pet Feeder

Sure Petcare · Microchip feeder · Our score 8.5/10

SureFeed Microchip Pet Feeder
$199.00 · Check price on Amazon

#ad Price as of September 27, 2026. Prices move; we check daily. How we're funded.

The only feeder here that solves the actual multi-cat feeding problem, which is not portioning -- it is one cat eating another cat's food.

Published specs

Bowl capacity400 ml, or two pouches of wet food
Pets storedUp to 32 identities
Food typesWet and dry
Power4 x C cells, 6-month stated battery life
Warranty3 years from date of purchase
Opens forRegistered microchips or a collar tag

Source: Sure Petcare -- SureFeed Microchip Pet Feeder product page

Our arithmetic — Batteries per year
8 C cells

Sure Petcare states 6 months from a set of 4 C cells, so 8 cells a year per feeder. In a three-cat house you need one feeder per cat on a controlled diet -- 24 cells a year for three. That is the running cost nobody mentions.

What the specs favor

  • Stores up to 32 pet identities -- more than any household needs
  • Works with an existing microchip, no new collar required
  • Takes wet food, which almost no automatic feeder does
  • Three-year warranty, the longest here

What they don't

  • Battery only -- 8 C cells a year, per feeder
  • One feeder feeds one cat, so a three-cat house needs three
  • 400 ml bowl is a meal, not a hopper -- it does not solve holidays
Skip this one if

Your problem is being out all day rather than food stealing. This is a lid that opens for the right cat, not a scheduled dispenser -- it will not feed anyone at 6pm on its own.

How it scores

Multi-cat separation10.0
Wet food handling9.0
Scheduling3.0
Running cost6.0
Build and warranty9.0

Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.

2. The biggest hopper here

PetSafe Smart Feed, 2nd Generation

PetSafe · Automatic feeder · Our score 7.9/10

PetSafe Smart Feed, 2nd Generation
$120.99 · Check price on Amazon

#ad Price as of September 27, 2026. Prices move; we check daily. How we're funded.

24 cups of hopper and portions from an eighth of a cup up to four cups -- the widest published portion range of any feeder on this page.

Published specs

Hopper capacity24 cups (6 L)
Portion range1/8 cup to 4 cups
Meals per dayUp to 12
Dimensions20.3" x 9.4" x 12.6"
Slow feedDispenses a meal over 15 minutes
DishwasherLid, hopper, bowl and holder, top shelf
Food typeDry or semi-moist

Source: PetSafe -- Smart Feed Automatic Dog and Cat Feeder, 2nd Generation

Our arithmetic — Days of food for three cats
About 16 days

24 cups of hopper. Three cats eating half a cup each per day is 1.5 cups daily, so about 16 days. The slow-feed setting spreads one meal over 15 minutes, which is the published feature that matters if one of your cats inhales food and then takes the other's.

What the specs favor

  • Largest published hopper here at 24 cups
  • Portions from 1/8 cup to 4 cups -- the widest range on this page
  • Slow feed spreads a meal over 15 minutes
  • All food-contact parts are dishwasher safe

What they don't

  • Single bowl, so no separation between cats
  • Dry or semi-moist only
  • 20 inches long -- it takes real counter or floor space
Skip this one if

You feed wet food. Nothing about this feeder handles it, and leaving wet food in an open bowl on a timer is a food-safety problem, not a convenience.

How it scores

Multi-cat separation2.5
Wet food handling1.0
Scheduling9.5
Running cost8.5
Build and warranty8.0

Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.

Common questions

What is the difference between a microchip feeder and an automatic feeder?
A microchip feeder is a lid on a bowl that opens only for a registered cat -- it controls who eats. An automatic feeder is a hopper that drops portions on a timer -- it controls when and how much. Neither does the other's job.
Which one do I need for two cats on different diets?
Microchip feeders, and usually one per cat. The SureFeed stores up to 32 identities, but a single unit is still a single bowl: the second cat needs a bowl of its own that opens only for it.
Can a microchip feeder handle wet food?
The SureFeed does -- its 400 ml bowl takes about two pouches, and the sealed lid is the point for wet food left down. Most hopper-based automatic feeders are dry or semi-moist only, including the PetSafe Smart Feed.
Can an automatic feeder stop one cat stealing another's food?
No. It dispenses on a schedule into an open bowl, and whichever cat is standing there eats it. That is the single most common reason a multi-cat household returns one.
Can you use both together?
Yes, and in a multi-cat house with one cat on a controlled diet it is a common setup: scheduled portions for the household, plus a microchip bowl for the cat whose intake has to be separated.

Sources

  1. Sure Petcare -- SureFeed Microchip Pet Feeder product page
  2. PetSafe -- Smart Feed Automatic Dog and Cat Feeder, 2nd Generation
  3. Ohio State University Indoor Pet Initiative -- For Cat Owners