Perch & Purr

Feeders, Fountains & Bowls

Best Automatic Cat Feeders (2026)

Every feeder quotes capacity in a different unit. We converted all of them into the same number: days of food for your household.

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.

Dry cat food kibble

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 January 1, 1970. Here is exactly how we pick.

Quick picks

Ranked on the published specs and the arithmetic below. Tap any row to jump to the full write-up. We have not tested these — here is exactly how we pick.

#ProductBest forScorePrice
1
No photo
PetSafe Smart Feed, 2nd Generation
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.
The biggest hopper here
7.9
2
No photo
PETLIBRO Granary Camera Feeder
Publishes its portion size in milliliters rather than vague 'portions', which is the only way to work out whether a hopper will actually last a weekend.
Watching what actually happens at the bowl
7.8
3
No photo
SureFeed Microchip Pet Feeder
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.
One cat on a prescription diet
8.5

#ad Buy links are affiliate links. Prices come from a live daily check; where we have no verified price we say "check price" rather than print a stale one.

Automatic feeder listings quote capacity in liters, cups, or nothing at all, and portions as an abstract count. None of that tells you the only thing you want to know: how many days of food will this hold for my cats?

Capacity converted into days

Published capacity, converted to days of food
FeederPublished capacity1 cat2 cats3 cats
PetSafe Smart Feed24 cupsAbout 48 daysAbout 24 daysAbout 16 days
PETLIBRO Granary Camera5 L / 250 x 20 ml portionsAbout 25 daysAbout 12 daysAbout 8 days
SureFeed Microchip400 ml bowl (one meal)One mealn/a -- one cat per feedern/a

Capacities are the manufacturers' published figures. Day counts assume half a cup of dry food per cat per day, or ten 20 ml portions -- our assumption, stated so you can substitute your own.

The SureFeed row looks like a failure and it is not. It is a different product doing a different job: a sealed bowl that opens for one registered cat, holding one meal. If your problem is a prescription diet being eaten by the wrong cat, no hopper capacity in the world helps you — see the multi-cat feeder page.

Portion control, and why the units matter

PetSafe publishes a portion range of one-eighth of a cup up to four cups. PETLIBRO publishes a portion as 20 ml, adjustable from 1 to 50 portions per meal. Both of those are real, checkable units you can hold against your cat’s daily ration. A feeder that advertises “up to 39 portions” with no volume attached is telling you nothing.

The arithmetic — Setting a feeder from a food bag
Read the daily ration for your cat’s weight off the food bag.
Divide by the number of meals you want.
Convert into the feeder’s units:
 
Example: 60 g/day, 3 meals = 20 g per meal
On PETLIBRO’s 20 ml portions, dry kibble is roughly 20 g per 40 ml, so about 2 portions per meal — then weigh what it actually dispenses and adjust.
Kibble density varies by food, so treat the conversion as a starting point and verify with kitchen scales. We are not going to publish a universal grams-per-milliliter figure that would be wrong for most foods.

Wet food is a hard no on hoppers

Every hopper feeder here is dry or semi-moist only, and that is a design constraint rather than an oversight: a hopper is a warm plastic column and wet food in it is a food-safety problem. The SureFeed handles wet food because it is a sealed bowl holding a single meal, and its published capacity of 400 ml takes about two pouches.

If you feed wet food and need cover for a weekend, the honest answer is a person, not a machine.

What to check before you rely on one

  1. Battery backup. PETLIBRO’s Granary takes three D cells as backup; check any feeder you plan to leave running unattended.
  2. Kibble compatibility. PETLIBRO publishes 2–15 mm. Large or awkwardly shaped kibble jams dispensers.
  3. Cleanability. PetSafe’s lid, hopper, bowl and holder are top-shelf dishwasher safe. Grease from kibble builds up and it needs washing.
  4. A dry run. Set it up and let it feed for a full week while you are home, before you ever leave it in charge.

Longer trips need a different plan entirely — see leaving cats alone, honestly.

The picks in full

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. The biggest hopper here

PetSafe Smart Feed, 2nd Generation

PetSafe · Automatic feeder · Our score 7.9/10

No photo
Check price on Amazon

#ad No verified live price right now, so we show none rather than a stale one. 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.

2. Watching what actually happens at the bowl

PETLIBRO Granary Camera Feeder

PETLIBRO · Automatic feeder · Our score 7.8/10

No photo
Check price on Amazon

#ad No verified live price right now, so we show none rather than a stale one. How we're funded.

Publishes its portion size in milliliters rather than vague 'portions', which is the only way to work out whether a hopper will actually last a weekend.

Published specs

Hopper capacity5 L
Portion size20 ml per portion, 1-50 portions per meal
Meals per dayUp to 10
Camera1080p, 145-degree lens, night vision
PowerDC 5 V adapter plus 3 x D cells backup
Kibble size2-15 mm diameter
Dimensions / weight13 x 7.5 x 7.5 in / 4.3 lb

Source: PETLIBRO -- Granary Smart Camera Feeder product page

Our arithmetic — Days of food for two cats
About 12 days

5 L hopper, 20 ml per portion, so 250 portions. Two cats on two meals a day at five portions a meal is 20 portions daily -- about 12 days of food. That is the number that tells you whether it covers a holiday, and it comes straight from PETLIBRO's own published portion volume.

What the specs favor

  • Portion published as a real volume (20 ml), not an abstract 'portion'
  • 5 L hopper -- roughly 12 days for two cats on the arithmetic above
  • Battery backup on D cells if the power drops
  • Kibble compatibility published as 2-15 mm

What they don't

  • One bowl, so it cannot separate two cats' food
  • Dry food only
  • Camera means a cloud account and a phone in the loop
Skip this one if

One of your cats eats the other's food. A single-bowl dispenser with a camera lets you watch the theft happen in 1080p without stopping it.

How it scores

Multi-cat separation2.0
Wet food handling1.0
Scheduling9.5
Running cost8.0
Build and warranty7.5

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.

3. One cat on a prescription diet

SureFeed Microchip Pet Feeder

Sure Petcare · Microchip feeder · Our score 8.5/10

No photo
Check price on Amazon

#ad No verified live price right now, so we show none rather than a stale one. 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.

Common questions

What is the best automatic cat feeder?
For most households, the PetSafe Smart Feed 2nd Generation: 24 cups of hopper, portions from an eighth of a cup to four cups, up to 12 meals a day and a slow-feed setting that spreads one meal over 15 minutes. The PETLIBRO Granary is the better buy if you want to see what is happening at the bowl.
How big a hopper do I need?
Convert capacity into days. Three cats eating half a cup each per day get about 16 days from PetSafe's 24-cup hopper. Two cats on PETLIBRO's 5 L hopper at 20 ml portions get about 12 days. Size for the longest trip you actually take, then add a margin.
Do automatic feeders work in a power cut?
The good ones have battery backup. PETLIBRO's Granary runs from a 5 V adapter with three D cells as backup, and the SureFeed microchip feeder is battery-only by design with a stated 6-month life from four C cells. Check for backup before buying if you plan to rely on it while away.
Can automatic feeders slow down a cat that eats too fast?
PetSafe's Smart Feed has a published slow-feed setting that dispenses one meal over 15 minutes, which is the only mechanical answer here. A foraging toy or puzzle feeder addresses the same problem differently, by making the cat work for each mouthful.
What kibble size do automatic feeders take?
PETLIBRO publishes 2 to 15 mm in diameter for the Granary, which is the only such figure in this comparison. Very large or oddly shaped kibble is the usual cause of a jammed dispenser, so check your food against a published range where one exists.

Sources

  1. PetSafe -- Smart Feed Automatic Dog and Cat Feeder, 2nd Generation (24 cups)
  2. PETLIBRO -- Granary Smart Camera Feeder (5 L, 20 ml portions, up to 10 meals)
  3. Sure Petcare -- SureFeed Microchip Pet Feeder (400 ml bowl, 32 pets, 6-month battery)