Video doorbells are among the most commonly installed home security devices, largely because they address a specific, universally relatable concern: seeing and speaking to whoever's at the door without physically answering it.
Doorbell vs. Intercom
A video doorbell replaces a traditional doorbell button with a camera, speaker, and microphone, typically battery or hardwired, triggered by a button press or motion detection. An intercom system is generally a more robust, often hardwired system designed for gated entries or multi-point properties, sometimes integrating directly with a gate or door lock release rather than just providing audio/video.
What Actually Matters in a Video Doorbell
Field of view. A wide field of view (150°+) captures packages left to the side of the door and people approaching from an angle, not just someone standing directly in front. This is one of the most common gaps in basic doorbell cameras with a narrower default field of view.
Pre-roll/buffer recording. Higher-end doorbells capture a few seconds of footage before motion is detected, avoiding the common frustration of catching someone mid-action rather than their initial approach.
Battery vs. hardwired. Battery models install without any wiring but require periodic recharging (frequency depends heavily on activity level and weather — extreme heat can affect battery life, a real consideration for Florida installations). Hardwired models connect to existing doorbell wiring and avoid battery management entirely, but require existing low-voltage wiring at the door.
Common Installation Mistakes
Wrong mounting angle relative to the sun. A doorbell facing east or west can suffer from severe glare and silhouetting during sunrise/sunset, making footage nearly useless during exactly the hours package theft and evening visitors are common. Facing the camera to minimize direct sun angle exposure, or adding a small overhang if none exists, meaningfully improves footage usability.
Ignoring existing chime compatibility. Hardwired doorbells replacing an existing wired doorbell need to be checked against the home's existing transformer and chime — mismatched voltage is a common source of doorbell malfunction or chime failure after installation.
Intercom Systems for Gated Properties
For properties with a gate, an intercom system lets visitors call into the house (or a mobile app) from the gate, with video verification before remotely triggering the gate to open — a meaningfully more secure and convenient setup than a simple call box or physical gate code shared broadly.
The Bottom Line
Video doorbells deliver real value for a relatively low cost, but field of view, mounting angle relative to sunlight, and battery/wiring choice all affect how genuinely useful the footage turns out to be — details worth getting right rather than defaulting to the cheapest or most heavily marketed option.