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Video doorbells vs real cameras: what each is for

Video doorbells and security cameras solve different problems. A look at fields of view, night performance and storage, and why many homes want both.

"We have a camera, it's the doorbell." We hear this a lot, usually right after something happened in the driveway that the doorbell didn't catch. The disappointment is understandable, but it isn't the doorbell's fault. A doorbell camera and a security camera are different tools that happen to share a lens.

The simplest way to put it: a doorbell is a conversation tool. Cameras are evidence tools.

What a doorbell is built to do

A video doorbell answers one question superbly: who is at my door, and do I want to talk to them? It sits at chest height, sees a face from a metre away, and lets you speak to the courier from your kitchen or your cottage. For deliveries, solicitors and unexpected knocks, nothing else comes close, and for many people that's the feature that matters daily.

Everything about its design serves that job. The wide, tall field of view is meant to show a person and the parcel at their feet, not the street. The mounting position is dictated by where a doorbell goes, not where a camera should go. It's the right tool for the porch conversation and it should be judged on that.

Where the doorbell's job ends

Field of view is the first limit. A doorbell sees a cone in front of the door. The driveway where the truck was entered, the side gate, the back patio door: all invisible. One camera position cannot cover a property, and the doorbell's position wasn't chosen for coverage in the first place.

Night performance is the second. Doorbells are small devices with small sensors, working off porch light and modest infrared. Faces at the door at night are usually fine. Anything past a few metres dissolves into noise, and a February night with blowing snow makes it worse.

Storage is the third and least appreciated. Most doorbells record short event clips to a cloud service, behind a subscription, over your Wi-Fi. Miss the subscription payment, suffer a Wi-Fi drop at the wrong moment, or need footage older than the retention window, and there's nothing to hand the OPP. Clips also start when motion is detected, which means the seconds before the event, often the most useful ones, may not exist.

What real cameras do differently

A proper camera system inverts all three limits. Cameras go where coverage demands: one watching the driveway, one on the approach, one on the back. We wrote a full guide to where cameras should go on a house, and none of the answers is "wherever the doorbell happens to be."

Night performance improves with sensor size and honest infrared, and wired cameras have the power budget for both. A decent wired camera identifies a person across a driveway at 3 a.m.; a doorbell shows you that something moved.

Storage is the big one. Wired systems record continuously to a recorder in your house. Every second is kept for weeks, not clips of some seconds. No subscription, no dependence on your internet connection at the moment of the event, and footage that you own outright and can pull at full quality. When police ask "do you have the twenty minutes before it happened," continuous recording is the difference between yes and no.

The honest recommendation: both, for different jobs

This isn't a contest with a winner. For most homes the right setup is a doorbell for what doorbells do, plus one to three wired cameras for what evidence requires. The doorbell handles the daily conveniences: parcels, visitors, talking to the door from anywhere. The cameras handle the rare bad day, when what you need is a clear face, a licence plate, and the full sequence of events with the lead-up intact.

If budget forces a choice, choose based on your actual worry. If it's deliveries and knowing who's knocking, the doorbell is the better first dollar. If it's the vehicles in the driveway, the shop, or a break-in, the doorbell will let you down and a real camera won't.

If you're weighing options for your property, our security camera installation service covers the whole picture, doorbell included, and we're happy to tell you when the cheaper answer is genuinely enough.

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Written by RelayPoint Technologies

Cabling, networks, cameras, access control, smart homes, hosting and software for homes and small business across Southwestern Ontario. Twenty-plus years in the trade, and we still answer the phone.

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