Quick answer
Mostly yes — for the crimes that actually happen at your front door. Research interviewing convicted burglars consistently finds most are opportunists who pick easy, anonymous targets and move on when they spot a camera or alarm. A visible doorbell camera also changes the two most common doorstep scenarios: package theft and the "knock test" burglars use to check if anyone is home. What a camera cannot do is physically stop a determined intruder — it deters, documents and warns; it does not block.
What burglars themselves have told researchers
The most useful evidence on deterrence does not come from marketing — it comes from asking the people who break in. In a widely cited University of North Carolina at Charlotte study, researchers surveyed over 400 convicted burglars about how they chose targets. The pattern was blunt: most were opportunists, most checked first whether a home looked occupied and monitored, and a majority said signs of surveillance or an alarm would push them to simply pick another house.
That matches decades of criminology on "target hardening": burglars rarely fight security — they avoid it. The house with the visible camera is not impossible to rob; it is just a worse deal than the identical house next door without one. Deterrence, at the front door, is largely a comparison game.
The knock test — the doorstep crime nobody talks about
Here is the part most people miss: a large share of burglaries begin with a polite knock. The intruder rings the bell, ready with a cover story about a delivery or a survey. If someone answers, they leave. If nobody answers, the house just failed the occupancy test.
This is where a doorbell camera with two-way audio quietly earns its keep. You can answer every knock from inside — or, with a portable monitor like the one that comes with the Vital Smart Door Home, from any room — without opening the door and without revealing whether you are home alone. The house always "answers", so it never advertises itself as empty. (It's also the heart of our family door plan for teaching kids not to open the door to strangers.)
Package theft: the most common porch crime
Porch piracy is far more frequent than burglary — surveys consistently find that tens of millions of Americans and Canadians have had at least one package stolen. Package thieves are the purest opportunists of all: they work in seconds, in daylight, and depend entirely on not being seen or recorded.
A camera pointed at the doorstep attacks exactly that. Motion alerts tell you the moment a courier — or anyone else — steps onto the porch, so packages spend less time sitting outside, and would-be thieves have to gamble on being watched live.
What a camera honestly cannot do
- It cannot physically stop someone who has decided to force entry — locks, reinforced strike plates and lighting matter too.
- It cannot cover what it cannot see — a front-door camera does not watch the back gate or ground-floor windows.
- It deters opportunists best; a targeted, planned break-in is a rarer and harder problem than any single gadget can solve.
Any honest security plan is layered: decent locks, lighting, the habit of actually answering the door, and a camera as the visible, recording, always-awake layer at the point where most doorstep crime starts.
Our recommendation: the Vital Smart Door Home
If you want the deterrence benefits above without adding an internet-connected camera to your front door, the Vital Smart Door Home is the doorbell we recommend. It covers the two doorstep crimes this article is about, the knock test and package theft, in the simplest way possible.
- Beats the knock test: two-way audio through a portable indoor monitor lets you answer every knock from any room, so the house never looks empty.
- Visible and always awake: a camera at the door with motion detection and night vision, the layer opportunists try to avoid.
- Nothing online to hack: a private FHSS 2.4G link straight to the monitor, with no WiFi, no app, no account and no cloud.
- No monthly fee, works in outages: it never used the internet, so it keeps working when the router goes down.
- DIY in minutes: wireless and rechargeable, mounted with adhesive or screws.
Our full review scores it 4.6/5. On the official site, 1 unit is US$99.99 (regular US$222.20), or the 2-pack is US$89.99 each (US$179.98), handy for a front and back door. Orders ship from New Jersey within 48 business hours to the USA and Canada, with a 30-day money-back guarantee.