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No. Video doorbells record in short clips triggered by motion or a button press, typically 10 to 60 seconds each, rather than continuously. Battery-powered doorbells cannot record around the clock at all — the sensor sleeps between events to preserve runtime, and keeping it awake would reduce months of battery life to hours. A handful of hardwired models offer continuous recording on a premium plan or to local storage, but it is the exception. What the doorbell does maintain at all times is live view on demand, which you can open from the app whether or not anything is being recorded.
What actually triggers a recording?
Three things, and understanding which one fired explains most of the missed clips people complain about.
- The button. Always recorded, always reliable, and the one event that never depends on detection settings.
- Passive infrared motion sensing. A heat sensor watching for a warm body crossing its field. It uses almost no power, which is what makes battery doorbells possible, but it misses subjects moving straight toward the lens and struggles when the ambient temperature approaches body temperature on hot afternoons.
- Video motion analysis with person detection. The camera compares frames and classifies what changed. More sensitive and much better at catching approaches, but it needs the sensor awake — so it is generally a wired-doorbell capability, and person filtering is usually the paid tier.
If your doorbell keeps missing people, the cause is usually zones and sensitivity rather than the hardware. Trim the motion zone to the walkway and the porch, raise sensitivity, and check that nothing warm and moving sits inside the zone all day.

How do wired and battery doorbells compare on recording?
Power is the whole story. A doorbell on an existing transformer can afford to keep its sensor running; one on a rechargeable pack cannot.
| Capability | Battery doorbell | Hardwired doorbell |
|---|---|---|
| Event clip recording | Yes | Yes |
| Pre-roll before the trigger | Sometimes, low resolution, costs runtime | Yes, full quality |
| Continuous 24/7 recording | No | On some models and tiers |
| Video motion detection | Rarely | Yes |
| Snapshot capture between events | Occasionally | Yes |
| Wake-up delay | 1–3 seconds | Near instant |
| Recording during an internet outage | Only with local storage | Only with local storage |
That wake-up delay is the practical difference people notice most: a battery doorbell often shows the visitor already at the door, while a wired one with pre-roll shows them walking up the path. If you have existing doorbell wiring, use it — the installation is covered in how to install a video doorbell, and the trade-offs in full are in wired vs wireless video doorbell.

Where do the clips go, and for how long?
To a cloud plan, to a microSD card or local hub, or both. Cloud retention on consumer plans runs from around 14 days at the budget end to 180 days on long-retention tiers, and free tiers are typically 3 days or live view only. Local storage loops instead, overwriting the oldest clip when the card fills — a card in a doorbell recording events on a moderately busy street commonly covers several weeks. The full figures and the arithmetic are in how long security cameras store footage.
The important habit either way: download anything that matters the same day. Retention windows are deletions, not archives. Doorbells that record locally with no monthly fee are compared in best video doorbell without a subscription, and the models owners rate highest overall are in our video doorbell picks.
We never buy, install or physically handle the products we rank. Every recommendation comes from aggregated owner reviews, star ratings, review volume and published expert consensus — see how we rank.
More from this hub: Smart Home & Security · Do cameras record all the time? · How many cameras do I need? · Best video doorbell · How we rank
