Best Automatic Feeders for Large Dogs (2026): 5 Picks That Keep Up

A 70-pound Labrador eats about four cups of kibble a day. A 100-pound German Shepherd eats closer to five or six. That simple fact is why most automatic feeders fail large-dog owners: the hopper that lasts a cat two weeks is empty by Wednesday, the dispenser jams on large-breed kibble, and a 90-pound dog can shove a light feeder across the kitchen floor. If you own a large breed, you need feeders judged on the things that matter at this size: hopper capacity in real days, kibble-size limits, portion range, power backup, and stability.

Disclosure: As an Amazon Associate, CalcPet earns from qualifying purchases made through the links in this article. That never changes what we recommend — every pick below is in our live catalog, rated by real buyers, and chosen for how it performs for large dogs specifically. We never claim to have tested products ourselves; ratings and buyer counts come from the Amazon listings.

The top 3 at a glance

• Best Overall — PETLIBRO Granary WiFi Feeder (5L): the biggest verified buyer base of any feeder here (~10,000 ratings), deep app scheduling, and a twist-lock lid that defeats food-obsessed dogs.
• Best for Large Dogs — PetSafe Smart Feed (6L): the largest hopper in this roundup at 24 cups, the widest portion range (1/8 to 4 cups per meal), and a slow-feed mode for dogs that inhale dinner.
• Best with Camera — PETLIBRO Camera Feeder (1080p): check in on your dog at mealtime from anywhere, with night vision, two-way audio, and a stainless steel slow-feed tray.

Buying guide: what actually matters for a large dog

1. Hopper size — do the days-of-food math

Ignore the litre figure on the box and convert it to days. A 70-pound dog eating roughly 4 cups a day gets about 5 days from a 5-litre hopper (around 20 cups) and 5 to 6 days from a 6-litre hopper (24 cups). A 100-pound dog eating 5 to 6 cups a day empties that same 6-litre hopper in about 4 days. That is fine for most owners, but be honest about your routine: if you travel for two weeks and want zero refills, you need a 15-litre feeder — a different, bulkier category our catalog does not carry. The five feeders below top out at 6 litres, and we would rather tell you that plainly than pretend otherwise.

2. Kibble size — the jam nobody warns you about

Large-breed kibble is often 14 to 20 millimetres across, and some feeders are built for pieces under 12 millimetres. A feeder that jams does not just skip a meal — it can jam while you are away. Before you buy, measure your kibble or check the listing's maximum kibble size. We flag the kibble limit on every pick below where it is a real constraint.

3. Portion range and power backup

A feeder that dispenses 1/8-cup portions is built for cats. A large dog needs portions up to 3 or 4 cups per meal, ideally split across several smaller meals a day, and dogs that eat too fast benefit from a slow-feed mode that stretches one meal over 10 to 15 minutes. Power backup matters just as much: a plug-only feeder that loses power skips meals until someone notices, so battery backup is non-negotiable if you are ever away overnight. A feeder for a large dog also needs to stay put — a heavy hopper, a non-slip base, and placement against a wall matter more than they do for a cat feeder. The AKC's guide to automatic feeders for dogs makes the same point: the right feeder depends on your dog's size, eating habits, and routine, not on the feature list alone.

The 5 best automatic feeders for large dogs

The Granary is the feeder we recommend to most large-dog owners who want app control. With roughly 10,000 verified-buyer ratings, it has been refined through years of real-world use: the app scheduling is genuinely flexible, portion sizes are consistent, and the twist-lock lid defeats even the most determined food-obsessed dog. The low-food sensor pings your phone before the hopper runs dry, which is exactly the kind of detail that matters when you travel. A 5-litre hopper holds about 20 cups, so a 70-pound dog gets around 5 days per fill and a 100-pound dog about 4 — plan on a twice-weekly refill. Dual-band Wi-Fi removes the single most common setup complaint in the category, and a 24-month warranty rounds out a package that asks very little of you after setup.

Pros: Huge verified buyer base (~10,000 ratings); flexible app scheduling suits shift workers and travelers; dual-band Wi-Fi avoids the 5GHz setup trap; twist-lock lid defeats food-obsessed pets; 24-month warranty.

Cons: Wi-Fi setup can still be fiddly on some networks; replacement desiccant bags are an ongoing cost; dry kibble only — no wet food support.

Best for: App-controlled scheduled feeding for large dogs — especially first-time smart-feeder buyers who want the most forgiving choice. Not ideal for: owners who need the very largest hopper (that is the PetSafe's territory) or semi-moist food support.

Where the Granary is the all-rounder, the Smart Feed is the specialist: capacity and portion range. Six litres is the biggest hopper in this roundup, and the 1/8-to-4-cup portion range is the widest — the practical upshot is that it is the only feeder here that can serve a cat's small meals and a large dog's big ones from the same unit. The 15-minute slow-feed mode is genuinely useful for speed-eaters, and the conveyor design handles dry and semi-moist kibble without jamming, which matters if you buy whatever is on sale. It comes from PetSafe, a US pet brand established in 1998, and pairs with Alexa for voice-triggered snacks. A 70-pound dog gets 5 to 6 days per fill from the 24-cup hopper, the longest stretch of any pick here.

Pros: Biggest hopper here (6L); widest portion range suits mixed cat-and-dog homes; slow-feed mode helps speed-eaters; handles semi-moist kibble; long-established brand.

Cons: Bulkiest footprint on the counter; some owners report app connectivity hiccups; smaller review base than the category leaders.

Best for: Large dogs, multi-pet homes, and anyone who refills grudgingly. Not ideal for: tight kitchen counters or buyers who want the deepest feeding analytics.

If you want to see that your dog actually ate — not just trust a notification — this is the one. The 1080p camera with night vision lets you check in from anywhere, and two-way audio means you can call your dog to the bowl. It holds the #1 spot in Automatic Cat Feeders on Amazon, backed by roughly 11,700 ratings, the largest buyer base in this roundup. The stainless steel slow-feed tray is a thoughtful touch for large dogs that inhale their food, and motion alerts tell you when your dog approaches the feeder — useful during trips, when a skipped meal is the first sign something is wrong. The hopper is smaller than the Granary's 5 litres, so expect more frequent refills for a big dog.

Pros: Check in on your dog visually at mealtimes, day or night; slow-feed tray design suits fast eaters; strongest rating base here (~11,700 ratings).

Cons: Priciest option in this roundup; camera features need a stable Wi-Fi connection; single tray — not ideal for two dogs.

Best for: Owners who want to watch their large dog at mealtime, especially while traveling.

PETKIT's feeder stands out for owners who like data: the app keeps a full feeding history, so you can spot at a glance if your dog skipped a meal. The fresh-lock sealing system and desiccant work together to keep kibble crunchy, and the 304 stainless steel bowl is a hygienic choice. Be clear-eyed about capacity, though — the "~15 days of food" figure is for one adult cat, so a large dog will work through this hopper in a few days, not two weeks. And this is the one hard limit in the roundup: kibble must be under 12 millimetres to dispense reliably, so measure your large-breed kibble first, because much of it is bigger than that.

Pros: Detailed feeding history in the PETKIT app; hygienic stainless bowl; pet-proof top lock defeats sneaky paws; fresh-lock sealing keeps kibble fresh.

Cons: 2.4GHz Wi-Fi only (no 5GHz); premium pricing vs. basic timed feeders; kibble must be under 12mm — many large-breed kibbles are larger.

Best for: Tech-friendly owners who want detailed feeding records and freshness. Not ideal for: large-breed kibble over 12mm or owners who want the longest refill interval.

Two dogs usually means buying two feeders — or one dog stealing the other's dinner. The WOPET solves this with a meal splitter that divides each dispensed portion evenly between two stainless steel bowls. Setup is refreshingly old-school: a clear LCD panel, no app, no account, no firmware updates, and dual power (adapter plus battery backup) means it keeps feeding through outages. Be honest about the limitation, though: the splitter divides portions equally, so it works best when both dogs eat the same food in similar amounts, and two 70-pound dogs with big appetites will empty it faster than two cats would. If your dogs need different diets, two separate feeders are the reliable fix. Our WOPET dual feeder review covers the setup in more depth, including bowl spacing and the first-week test run.

Pros: Purpose-built for two-pet homes — no second feeder needed; dual power: adapter plus battery backup for outages; simple LCD setup — no app or account required; voice recording calls dogs to meals.

Cons: Newer listing with a smaller review base; dry food only; split portions do not suit dogs on different diets.

Best for: Two-dog homes feeding the same food in similar amounts. Not ideal for: two very large dogs with big appetites, or dogs on different diets.

Comparison table

Feeder	Hopper	Meals / day	App	Best for
PETLIBRO Granary	5L (~20 cups)	Up to 10	Yes (2.4G + 5G)	Best overall
PetSafe Smart Feed	6L (24 cups)	Up to 12	Yes + Alexa	Large dogs, biggest hopper
PETLIBRO Camera Feeder	Smaller than 5L	App scheduled	Yes + camera	Watching mealtimes
PETKIT WiFi Feeder	~15 days for one cat	App scheduled	Yes (2.4G)	Feeding records
WOPET Dual Feeder	Dual-bowl split	Up to 6	No (LCD timer)	Two dogs, same food

Verdict: which feeder should you buy?

For most large-dog owners, the PETLIBRO Granary is the safest first choice — the ~10,000-rating buyer base, flexible app, and twist-lock lid cover the most situations with the fewest surprises. If your dog is 70 pounds or more and you hate refilling, step up to the PetSafe Smart Feed: its 6-litre hopper and 1/8-to-4-cup portion range are the best fit for big appetites, and the slow-feed mode is a real help for dogs that gulp. Choose the PETLIBRO Camera Feeder if you travel and want visual proof your dog ate. Pick the PETKIT if feeding records and freshness matter most — and you have checked your kibble is under 12mm. And if two dogs share your kitchen, the WOPET is the only pick here that feeds both from one unit, as long as they eat the same food in similar amounts. If you also feed a cat or a smaller dog, our general automatic pet feeder roundup covers the smaller hoppers. If you are still deciding between smart and simple feeders, our feeder size guide walks through measuring your dog's needs, and our three-way WiFi feeder shootout compares the top smart models head to head.

FAQs

What size automatic feeder do I need for a large dog?

Look for a hopper of at least 5 litres (about 20 cups). A 70-pound dog eating roughly 4 cups a day gets about 5 days from 5 litres and 5 to 6 days from 6 litres (24 cups). Smaller hoppers mean refilling every day or two, which defeats the purpose.

Can automatic feeders handle large-breed kibble?

Some can, some cannot. Large-breed kibble is often 14 to 20 millimetres across, and feeders like the PETKIT are built for kibble under 12 millimetres. Always check the listing's maximum kibble size, and prefer conveyor-style dispensers (like the PetSafe Smart Feed) if your kibble is large.

How long does a 6L feeder last for a 70-pound dog?

About 5 to 6 days. Six litres is roughly 24 cups, and a 70-pound dog eats about 4 cups a day. A 100-pound dog eating 5 to 6 cups a day will empty the same hopper in about 4 days.

What happens if the power goes out?

It depends on the feeder. Models with battery backup keep running their saved schedule through an outage — the WOPET runs on batteries, and the smart feeders here keep their last schedule when power or Wi-Fi drops, though you lose remote control until the connection returns. A plug-only feeder with no backup simply skips meals. The ASPCA's general dog care guidance is a good baseline for daily feeding routines of any kind.

Are automatic feeders good for two large dogs?

Yes, with conditions. A dual-bowl feeder like the WOPET splits each portion evenly, so it works when both dogs eat the same food in similar amounts. Two very large dogs with big appetites will empty it quickly, and dogs on different diets need two separate feeders — a splitter cannot serve two different foods.

Do automatic feeders work with wet food?

Almost never. The five feeders in this roundup are built for dry kibble, and the PetSafe Smart Feed is the only one that also handles semi-moist kibble. Wet food needs refrigeration and a different kind of feeder entirely, so keep wet meals manual.

Conclusion

A large dog does not need a fancier feeder — it needs a bigger hopper, a wider portion range, and a dispenser that will not jam on large kibble. The PETLIBRO Granary covers most owners, the PetSafe Smart Feed covers the biggest appetites, and the camera, PETKIT, and WOPET picks cover the three most common special cases: watching mealtimes, tracking feeding, and feeding two dogs. Measure your dog's daily cups, measure your kibble, and pick the feeder whose numbers match — then test it for a week while you are home before trusting it on a trip. Want to check the basics first? Try our dog age calculator to see where your dog is in life, then browse the full Pet Parent Picks collection for the rest of your setup.