Do you really need a pet camera?
By Josh · Reviewed and updated: 2026-09-18
A camera answers "what happened". It does not answer "how much". That distinction decides the whole question, because the thing most owners actually want to know about their pet's day — how much did it eat — is a weight, and a camera has no weight. There is, however, one situation where a camera does something no other tool can, and it is not the situation the marketing usually sells. This page is about telling those two apart before you spend anything.
What a camera can and cannot tell you
| Useful | Not useful |
|---|---|
| Whether the bowl was emptied — a yes/no answer your eyes can settle in three seconds of video. | How many grams went in. Video gives you a picture of a bowl, not a number. A bowl that looks "about half full" can be 60 g or 140 g. |
| When it was eaten — useful if a pet grazes all day and you want to know whether the afternoon is skipped. | Whether the amount was right. Correct-looking meals can still be the wrong size, and wrong-looking ones can be correct. Only a scale and a target tell you that. |
| Who ate it — the one case where a camera beats everything else. See the next section. | Trends. One day's footage is an anecdote. Weight and body condition are the trend, measured over weeks. |
| A record for the vet — a clip of a limp or a coughing fit is worth more than a description of it. | Anything about calories. A camera cannot see energy content, so it cannot tell you whether a portion delivers what your pet needs. |
The one case a camera is genuinely built for
It is also common, and that matters — a rare error is not worth defending against, and this one is not rare. Cats are solitary hunters that do not share food, so the guidance for multi-cat households is to give each cat the choice to eat alone: separate bowls, placed apart. In practice many homes do not. In one survey, almost half of multi-cat households provided only one food dish for several cats (Delgado & Dantas, Veterinary Clinics of North America: Small Animal Practice, 2020).
Here is the situation where nothing else does the job: two or more pets sharing one bowl. The reason is that a shared bowl hides a specific error, and it hides it well.
Take two 4 kg neutered cats on typical activity, eating a food of 350 kcal per cup at 110 g per cup. Each needs 75 g a day in our calculator. So you put out 150 g — and the total is exactly right.
Now watch what happens at the bowl:
| Cat | Actually ate | Needs | Error |
|---|---|---|---|
| A (first to the bowl, eats fast) | 100 g | 75 g | +34% |
| B (eats slowly, gets what is left) | 49 g | 75 g | −34% |
| Total put out | 149 g | 150 g | ±0% |
The 100 g / 49 g split is an illustration, not a typical measurement. It shows what can happen when two cats share one bowl. The actual split in your household depends on which cat eats faster, and by how much.
Read the third row. You measured correctly, you put out the right amount, and you will find an empty bowl at the end of the day. Nothing about the evidence in front of you is wrong — and one cat is being fed a third too much while the other is being fed a third too little. Over time one gains weight and one loses it, and the empty bowl keeps telling you everything is fine.
How much is a third too much, in energy terms? For cat A that is 25 g of food a day beyond what it needs, which is about 80 kcal a day. Not a dramatic number for one day. It is the direction and the repetition that matter, and neither of them is visible from a bowl.
The behaviour literature describes why the bowl is such poor evidence, and the mechanism is counter-intuitive: when cats are made to share a bowl, the cat that is losing out may end up eating under stress rather than skipping the meal (Delgado & Dantas, 2020). The one being underfed is often the one eating in a hurry — not the one walking away.
This is where a camera is the only tool that can help. It can tell you which cat is eating and roughly how long each spends at the bowl — information you cannot get any other way when you are not in the room. What it still cannot tell you is the weight. So the camera narrows the problem to the right cat; it does not solve it.
Separation anxiety: a camera records it, it does not treat it
This is the other reason people buy cameras, and it is worth being precise about what you get. In a case-control study of 200 dogs diagnosed with separation anxiety against 200 dogs referred for other behaviour problems, the most common complaints were destructive behaviour directed at the home, self-inflicted trauma, inappropriate elimination, and excessive vocalisation occurring only in the owner's absence. The same study found three signs that most sharply separate separation anxiety from other behaviour problems: extreme following of the owner, visible arousal at departure cues — keys, shoes, a coat, the door — and excessive greeting on return (Journal of the American Veterinary Medical Association 219(4): 460–466, Flannigan & Dodman, 2001).
A camera gives you two real things here:
- Evidence. "He seems anxious when I leave" is hard to act on. Three clips showing when it starts, how long it lasts, and whether it happens before or after you leave the building — that is something a behaviourist or vet can work with. Good footage shortens the diagnostic conversation considerably.
- Timing. Whether the distress starts before you go or only after the door closes changes the advice you will be given. A camera is the only way to know.
What it does not give you is treatment. Separation problems are addressed with behaviour modification, and in some cases with veterinary support — not by speaking through a speaker. The camera's job here is to shorten the diagnostic conversation, not to be the intervention.
Where a camera does save you real work
- More than one pet, one bowl. Covered above — and the strongest case on this page.
- An older pet or one with a managed condition. Footage of a stumble, a cough or a change in how it gets up is genuinely useful at an appointment. A description of the same thing is not.
- A puppy or a newly adopted pet, in the first weeks. You are trying to find out whether the routine you set up is working, and the only way to see the day is to look at it.
- Checking on a pet sitter. Rare, but real: whether the visits are happening, and what happens during them.
Where it adds nothing
- You just want to know how much your pet eats. That is a scale question. A camera cannot answer it at any price, and the cheapest kitchen scale answers it exactly.
- You already own a plain indoor camera. The pet-specific features are mostly alerts and treat-tossing. If what you want is to look in, you may already be able to.
- Your pet finds your voice stressful. Not every animal is reassured by it. Test it before building a routine around it.
- You would check it constantly. This one is common enough to be worth naming: for some owners, the feed becomes the source of the anxiety rather than the cure.
Two things to check before you buy
| Check | Why it matters |
|---|---|
| Whether that model is the subscription version | It is not usually about whether the camera works — it is about how much of it works. Some brands leave live view and basic alerts free and put recording and smart alerts behind a subscription; others bundle almost everything into the price. Decide which features you actually need, then check where they sit. Read the product page rather than the listing title. |
| Which Wi-Fi band it needs | Most pet cameras connect only to a 2.4 GHz network and will not join a 5 GHz one. Before you buy, check that your router has a 2.4 GHz band — many newer mesh systems broadcast both, but some are set to 5 GHz only, and then the camera simply will not connect. |
If what you want is the amount, here is what actually gets you there
Strip the question back. Feeding amount needs two measurements, and neither of them is a camera:
- A daily target in grams. That comes from your pet's weight, life stage, neutered status, activity level and the calorie content of the food — the calculator does this in one step.
- A regular weigh-in. The target is an estimate; the body condition score and the scale over a few weeks tell you whether it is the right estimate for your pet.
If there is more than one pet, add a third step: feed them apart. It is unglamorous, it costs nothing, and it is the only method that gives you a per-pet number. The measuring page covers how to get accurate portions, and the storage page covers keeping those portions fresh.
Frequently asked questions
Can a pet camera tell me how much my pet is eating?
No. A camera sees volume and time, not weight, and a bowl that looks half full can hold 60 g or 140 g depending on the food. If the question is how much, the tool is a kitchen scale. If the question is when, or who, a camera answers it well.
I have two cats and one bowl. Will a camera help?
Partly. It will confirm which cat is eating the larger share and when, which no other tool can do while you are out. But the fix is to feed them separately and weigh each portion, which gives you an actual number. A camera tells you there is a problem; separate bowls solve it.
Will a camera help with separation anxiety?
It helps you document the problem, which genuinely shortens a conversation with a vet or behaviourist — especially whether distress starts before you leave or only after. It does not treat the underlying cause, which usually needs behaviour modification and sometimes veterinary support. For some pets, hearing an owner's voice through the speaker increases arousal rather than reducing it.
Do I need the subscription version?
Several brands sell both, with similar names and similar-looking listings. The subscription version is cheaper up front and commits you to a monthly fee; the standalone version costs more and has no recurring cost. Which is cheaper depends on how long you keep it, so check the product page rather than the listing title.
Is a pet camera worth it if I only have one pet?
That depends on what you want from it. For peace of mind about what your pet does while you are out, or for capturing evidence for a vet, it can be. For anything to do with how much your pet eats, it adds nothing — a scale answers that question completely, for far less.
Work out your pet's daily amount in grams →
Check body condition, not just weight →
Feeding from an automatic feeder? →
How big a bag should you buy? →