Oneisall Automatic Cat Feeder Review: Budget Portion Control Checked Against the Spec Sheet
Our expert-analysis review of Oneisall automatic feeders: how portion control, the two-cat model, and backup power hold up against the spec sheet, which cats they suit, and when to spend more.
BVMS MRCVS
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An Oneisall automatic cat feeder is one of the cheaper ways to put a cat on measured meals. Oneisall's own site listed its Basic, single-cat, and two-cat feeders from $39.99 to $79.99 in October 2026, and Chewy listed the OneIsAll 5G Wifi Automatic Cat Feeder, 20-cup at $69.99 when we checked in October 2026.
Set against the spec sheet, the Oneisall automatic cat feeder holds up on price and small portions. It falls short in two places: no Oneisall listing mentions a way to tell two cats apart at the bowls, and the Chewy listing for the 5G model says nothing about backup power.
WebVet did not obtain this feeder or test it hands-on. This is an expert analysis of Oneisall's published specifications, the Chewy listing, and veterinary guidance. No manufacturer or retailer paid for or reviewed this article, and while WebVet may earn a commission on Chewy links, that relationship did not influence this review.
Oneisall automatic cat feeder at a glance: what it is and who it suits
The short verdict: an Oneisall feeder is a low-cost way to serve small, measured portions on a fixed feeding schedule. Weigh one portion and you know what each meal holds. The two-cat models have two bowls with real limits, and homes where one cat must not eat the other's food should spend more.
What an Oneisall feeder does for a cat is simple: it holds dry kibble in a hopper and releases set portions at the times you choose, or on demand. That fits the VCA Animal Hospitals advice to feed a measured portion for the day, using a measuring cup or a kitchen scale.
The OneIsAll 5G Wifi Automatic Cat Feeder, 20-cup adds app control on top of the timer. Chewy's listing describes scheduled or manual feeding over 5G or 2.4G Wi-Fi.
The 20-cup Oneisall on Chewy: scheduled or manual feeding, 5G and 2.4G Wi-Fi, and a feeding log in the app.
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- 1An Oneisall feeder holds dry kibble and drops small, set portions on a schedule, so your cat eats measured meals while you are out.
- 2To pick a model, count your cats: buy the single-cat 15-cup feeder or the 3.5L Basic for one cat, and a 5L two-bowl model for two calm cats.
- 3Oneisall lists 7 to 8 g per portion on the models that state a weight, so weigh one portion before you set meals.
- 4The two-bowl models cannot tell cats apart, so a cat that steals food is better served by a microchip feeder.
The fit depends on your household:
- One adult cat on dry food: the single-cat 15-cup feeder, which Oneisall says holds enough for up to 15 days.
- Two cats that already eat calmly side by side: a 5L two-bowl model.
- Owners who want a feeding log on their phone: the 5G Wifi 20-cup model sold on Chewy.
- Homes where one cat steals or guards food: a feeder that recognizes each cat, not an Oneisall.
Do vets recommend automatic feeders?
Veterinary groups back the job a feeder does rather than any brand. The AAFP and ISFM feeding guide names puzzle or automatic feeders as one way to give cats the small meals they need, and VCA's advice to measure the daily portion points the same way. Neither source endorses automatic feeders for every cat.
If you are still choosing a feeder type, our roundup of the best automatic cat feeders compares the wider field.
Which Oneisall feeder to buy: basic, Wi-Fi, and two-cat models
Oneisall sells several feeders that look alike but differ in hopper size, bowl count, and app support. Start with how many cats you feed, then decide whether you need the app and which Wi-Fi band your router uses.
The model sold on Chewy is the OneIsAll 5G Wifi Automatic Cat Feeder, 20-cup, listed at $69.99 on Chewy when we checked in October 2026. Its listing describes scheduled or manual feeding, a feeding log in the app, and enough food for two adult cats for up to 10 days.
That is the same listed price as the Petlibro Air Wi-Fi Automatic Dog & Cat Feeder, Black, 2-L, which Chewy also listed at $69.99 in October 2026. Its listing says it runs on batteries with no cables, so compare the two if a power cord near the feeding spot is a problem.
Same listed price as the Oneisall 5G model, with a 180-day battery life, no cables, and up to six meals a day.
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Oneisall's own site covers the rest of the range. Here is what each product page listed in October 2026:
- 3.5L Basic: listed at $39.99 with manual control or $49.99 with app control; 7 g per portion and up to 6 meals a day.
- Single-cat 15-cup (4 lb) feeder: listed at $49.99 with app control plus a backup battery; up to 10 meals a day and up to 15 days of food for one adult cat.
- PF07 5L: regular price listed at $54.99; up to 6 meals a day and 12 portions per meal, with no Wi-Fi mentioned.
- 5L dual-bowl model: listed from $69.99, with dual bowls and both 5G and 2.4G Wi-Fi advertised.
- H1-W 5L two-cat model: listed at $79.99, or $85.99 as the Longer Fresh Set; 8 g per portion, two bowls, and a D-battery backup.
Match the model to your home:
- One cat, no app needed: the 3.5L Basic with manual control has the lowest listed price.
- One cat, with app control and a backup battery: the single-cat 15-cup feeder.
- Two cats: the H1-W 5L or the 5L dual-bowl model, after you check its Wi-Fi band.
- Buying through Chewy: the 20-cup 5G Wifi model.
One caution before you pay: Oneisall's product pages list different Wi-Fi bands for different models and give grams per portion for only some of them. Read the page for the exact model you are buying, not a sister model with a similar photo.
Portion size: what one portion holds and how to measure it
Oneisall lists 8 g per portion on the H1-W 5L two-cat model and 7 g per portion on the 3.5L Basic, a figure it ties to 12 mm kibble. The single-cat 15-cup page lists meals and portions but no grams, and the Chewy listing for the 20-cup 5G model gives no portion weight.
Oneisall does not publish one portion size chart for its whole range. Here is what each page lists:
- H1-W 5L two-cat: 8 g per portion, up to 6 meals a day.
- 3.5L Basic: 7 g per portion for 12 mm kibble, up to 6 meals a day and 36 portions.
- PF07 5L: up to 6 meals a day and 12 portions per meal; no gram figure.
- Single-cat 15-cup: up to 10 meals a day and 36 portions; no gram figure.
- 5G Wifi 20-cup on Chewy: no portion figure in the listing.
Because the Basic's figure is tied to one kibble size, your cat's food may not weigh the same per portion. Measure it once:
- Dispense one portion manually into a clean, empty bowl.
- Weigh it on a kitchen scale.
- Repeat with a few portions and take the average.
- Divide your cat's daily amount by that weight to set how many portions each meal gets.
International Cat Care says weighing dry food adds less than a couple of minutes to your routine and can help prevent weight gain. VCA's guide to obesity in cats adds that consistency in both portion size and meal frequency is critical for weight control, which is exactly what a timed feeder repeats every day.
How often should you feed a cat?
The Cornell Feline Health Center says most adult cats do fine on one or two meals a day. VCA calls at least two meals a day the most common advice, adding that some cats do better with more. International Cat Care suggests at least five portions across 24 hours, using timed and puzzle feeders.
These sources disagree, so ask your vet which pattern suits your cat. Any of them fits an Oneisall feeder: up to 6 meals a day on the H1-W and 3.5L Basic, and up to 10 on the single-cat 15-cup. Keep the daily total fixed and split it across the meals.
The app, Wi-Fi, and backup power
The app turns the feeder from a timer into something you can check from work. Chewy's listing for the OneIsAll 5G Wifi Automatic Cat Feeder, 20-cup says you can feed on a schedule or manually, view the feeding log on an iOS or Android phone, and record a message to play before each meal.
Pricier feeders put more of the controls in the app. Chewy's listing for the Catit Pixi Smart Cat Feeder says its PIXI app sets meal times, adjusts portions, and dispenses food remotely, though it gives no portion weight either.
Oneisall's single-cat page adds shared control, so family members can feed and monitor together. If you would rather watch your cat eat than read a log, a camera feeder is the upgrade, and our guide to the best pet feeders with cameras covers them.
A two cat and dog feeder whose Chewy listing names 2.4G and 5G Wi-Fi plus a dual power supply.
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Check the Wi-Fi band before you buy, because it differs by model. The H1-W 5L page says it connects over 2.4GHz Wi-Fi and does not mention 5GHz, while the 5L dual-bowl page advertises both 5G and 2.4G. Before you order:
- Match the exact model name to the page that lists its band.
- If the page names only 2.4GHz, confirm your router broadcasts a 2.4G Wi-Fi network.
- Expect both bands on the 5G Wifi model sold on Chewy, which lists 5G and 2.4G.
- Note that the 3.5L Basic comes in manual and app-control versions, and its page text does not name a band.
Backup power is where Oneisall's spec sheets say least. The H1-W 5L has a D-battery backup but no stated runtime, and the PF07 5L lists Battery Backup only as a label. The 3.5L Basic is the model that gives a figure: its low battery mode lasts 60 days during power outages, per the maker.
If you want backup power and both Wi-Fi bands named in one listing, Chewy's page for the Petlibro Granary WIFI 2.4g & 5G Automatic Two Cat & Dog Feeder lists 2.4G and 5G Wi-Fi and a dual power supply. Chewy listed it at $99.99 in October 2026.
The Chewy listing for the 20-cup 5G Oneisall does not mention backup power, and it does not say whether the feeder keeps its schedule without Wi-Fi. Before a trip, switch off your router for one meal and confirm food still drops.
Can I leave my cat alone for 2 days with an automatic feeder?
Food capacity is not the limit: Oneisall says its 15-cup hopper lasts one adult cat up to 15 days. The risks are a jam, a power cut, a Wi-Fi drop, or an empty water bowl. Feeding guides from VCA and Cornell give no safe number of days, so arrange for someone to check in.
VCA notes that a feeding routine helps a cat cope with changes such as a house-sitter visiting while you are away, so a feeder and a sitter work together. A feeder does nothing for water: check how much water a cat should drink and consider one of the best cat water fountains.
Catit's PIXI app sets meal times, adjusts portions, and dispenses food remotely, with a stainless steel dish.
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Feeding two cats: the dual-bowl model and its limits
Oneisall's answer for two cats is a 5L feeder with two bowls. The H1-W 5L two-cat model uses 16-inch spacing between its bowls, which Oneisall says prevents fights, and the box list for the 5L dual-bowl model includes a stainless steel bowl and holder. Both are sold for multi-pet homes.
The limit is recognition. No Oneisall listing mentions microchip or collar identification, so either cat can eat from either bowl. The AAFP and ISFM guide says each cat should have its own food and water bowl, and names programmable bowls that read individual microchips as one way to let only one cat in.
The Cornell Feline Health Center notes that the presence of other animals can put a cat off eating, and that obesity is the most common nutrition-related problem in cats. A shared station can fail both ways: one cat eats too little while the other eats too much.
How to use an automatic feeder with two cats?
Give each cat its own bowl, feed them where they cannot see each other, and watch the first weeks closely. The AAFP and ISFM guide advises placing food with visual separation, and International Cat Care says to feed cats in separate areas. A side-by-side dual-bowl feeder suits pairs that already eat calmly together.
- Set meals from both cats' combined daily amount, using the portion weight you measured.
- Watch several meals to see which cat eats from which bowl.
- Weigh both cats regularly so a slow loss or gain shows early.
- If they swap bowls or one guards, move to two single feeders in separate rooms or to a microchip feeder.
For more options, compare the best automatic feeders for multiple cats, or see the best microchip pet feeders if each cat needs a bowl that opens only for them.
Cleaning, jams, and keeping kibble fresh
For freshness, Oneisall says the airtight lid and desiccant keep food fresh, and recommends replacing the desiccant every 3 to 4 weeks. Cornell likewise advises storing dry cat food in an airtight container to help prevent nutrient deterioration and keep its flavor.
Cleaning needs a routine more than effort. The 3.5L Basic's stainless steel bowl is dishwasher-friendly, and the 5L dual-bowl box includes a sponge. Cornell lists dirty food containers among the things that can put a cat off eating, so wash the bowls often and dry the hopper before you refill it with fresh kibble.
Oneisall's product pages give no steps for clearing a jam, so build a quick check into each refill:
- Replace the desiccant every 3 to 4 weeks.
- Wash the bowl and wipe the hopper dry.
- Refill with fresh kibble and close the lid.
- Dispense one manual portion to confirm food drops before you leave.
What are the disadvantages of using an automatic pet feeder?
The main downsides are that a feeder cannot tell cats apart and depends on power and, for app models, Wi-Fi. For the Oneisall range, the spec sheets also leave gaps you have to fill yourself:
- No cat recognition on the two-bowl models, so either cat can eat from either bowl.
- Grams per portion and Wi-Fi bands vary by model and are missing from some pages.
- No jam-clearing instructions on the product pages.
- A stated battery runtime only for the 3.5L Basic, at 60 days in low battery mode.
None of these rules a feeder out. They mean the feeder supports your routine; it does not replace someone checking on your cat.
Oneisall feeder alternatives: when Petlibro or Catit fits better
Set against Petlibro and Catit, the Oneisall costs the same or less and gives up little on scheduled portion control. The differences show in backup power, two-cat support, and app features. Here is what each alternative's listing offers:
- Petlibro Air Wi-Fi Automatic Dog & Cat Feeder, Black, 2-L: listed at $69.99 on Chewy when we checked in October 2026, the same as the Oneisall 5G model. Its listing gives up to six pre-portioned meals a day, a 180-day battery life with no cables, and a press-to-lock lid, in a smaller 2-L hopper.
- Petlibro Granary WIFI 2.4g & 5G Automatic Two Cat & Dog Feeder: Chewy listed it at $99.99 in October 2026, $30 more than the Oneisall 5G model. Its listing names 2.4G and 5G Wi-Fi, a dual power supply, app scheduling with smart notifications, and a two-pet design.
- Catit Pixi Smart Cat Feeder: Chewy listed it at $111.80 in October 2026. Its app sets meal times, adjusts portions, and dispenses food remotely, a rubber-sealed lid and desiccant pad keep kibble fresh, and the dish is stainless steel. The listing does not mention backup power.
For a closer look at Petlibro's own range, read our Petlibro automatic feeder review.
| Feeder | Price listed in October 2026 | Portion control on the spec sheet | App and Wi-Fi | Backup power | Two-cat support |
|---|---|---|---|---|---|
| OneIsAll 5G Wifi Automatic Cat Feeder, 20-cup | $69.99 on Chewy | Scheduled or manual feeding; no gram figure in the listing | App with feeding log; 5G and 2.4G Wi-Fi | Not mentioned in the Chewy listing | One feeder; listing says up to 10 days of food for two adult cats |
| Oneisall H1-W 5L two-cat model | $79.99 on Oneisall's site | 8 g per portion, up to 6 meals a day | App over 2.4GHz Wi-Fi per its product page | D-battery backup; no runtime given | Two bowls with 16-inch spacing; no cat recognition |
| Oneisall 3.5L Basic | $39.99 manual or $49.99 app on Oneisall's site | 7 g per portion, up to 6 meals a day | Manual and app-control versions | Low battery mode lasts 60 days in an outage | One stainless steel bowl |
| Petlibro Air Wi-Fi Automatic Dog & Cat Feeder, Black, 2-L | $69.99 on Chewy | Up to six pre-portioned meals a day | Wi-Fi model; the listing does not describe the app | 180-day battery life, no cables | Listing does not mention two cats |
| Petlibro Granary WIFI 2.4g & 5G Automatic Two Cat & Dog Feeder | $99.99 on Chewy | Schedule and adjust meals in the app | PETLIBRO app; 2.4G and 5G Wi-Fi | Dual power supply | Sold as a two cat and dog feeder |
| Catit Pixi Smart Cat Feeder | $111.80 on Chewy | Set meal times and adjust portions in the app | PIXI app | Not mentioned in the listing | Listing does not mention two cats |
Our verdict: the OneIsAll 5G Wifi Automatic Cat Feeder, 20-cup, listed at $69.99 on Chewy in October 2026, suits one cat, or two calm cats, on measured dry-food meals with app control. Its gaps are a listing that never mentions backup power and bowls that cannot tell cats apart.
Shop differently when:
- One cat must be kept out of the other's bowl: a microchip feeder.
- You want no power cord: the Petlibro Air, at the same listed price.
- You want a listed dual power supply and both Wi-Fi bands for two pets: the Petlibro Granary.
- You want to adjust portions and dispense food remotely from the app: the Catit Pixi.
Oneisall automatic cat feeder questions
Frequently Asked Questions
How much food is one Oneisall portion?
It depends on the model. Oneisall lists 8 grams per portion on the H1-W 5L and 7 grams on the 3.5L Basic, so five H1-W portions come to about 40 grams. Other models, including the 20-cup 5G Wifi on Chewy, publish no gram figure, so weigh one portion of your own kibble.
Can the Oneisall feeder feed two cats?
Yes, within limits. The 5L two-cat models have two bowls, and Oneisall says the 5L hopper holds enough for two cats for up to 10 days. The feeder does not know which cat is eating, so either cat can take either portion. It suits pairs that eat calmly side by side, not rivals.
Does the Oneisall feeder need Wi-Fi?
No. The 3.5L Basic comes in a manual-control version, and the PF07 5L page lists up to 6 meals a day without mentioning Wi-Fi. You need Wi-Fi only for the app, which changes the schedule, feeds manually, and logs meals on your phone. Some Oneisall pages list 2.4GHz only, so check your router.
Is the Oneisall feeder worth it?
On price, yes for one cat or two calm cats. Oneisall listed its Basic, single-cat, and two-cat feeders from $39.99 to $79.99 on its site in October 2026, while Chewy listed the Petlibro Granary at $99.99 and the Catit Pixi at $111.80.
Reliability is harder to judge from the spec sheet: the 5G model's listing gives no backup power details, and no Oneisall page explains how to clear a jam.
What does the Oneisall app do?
On the 20-cup 5G Wifi model sold on Chewy, the app runs scheduled or manual feeding, shows a feeding log on iOS or Android, and records a message that plays before each meal. Oneisall's single-cat page adds shared control, so family members can feed and monitor together.
Editor
The Webvet Editorial Team is the in-house group of pet-care editors and writers behind Webvet, operated by Smart Pet Collective. The team researches, writes, and maintains Webvet's pet health, behavior, and medication content. Every article follows a defined editorial process: research from reputable veterinary and scientific sources, careful drafting, mandatory review of medical content by a credentialed veterinarian, and dated publication. Health and medication articles are medically reviewed by a licensed veterinary professional before they go live and are kept current over time.
Veterinarian · BVMS MRCVS
Dr. Pippa Elliott, BVMS, MRCVS, is a veterinarian with nearly 30 years of experience in companion animal practice. Dr. Elliott earned her Bachelor of Veterinary Medicine and Surgery from the University of Glasgow. She was also designated a Member of the Royal College of Veterinary Surgeons. Married with 2 grown-up kids, Dr. Elliott has a naughty Puggle named Poggle, 3 cats and a bearded dragon.
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