DoorVi guides
Straightforward explanations of how QR and NFC video doorbells work, what they need to function, and how to judge whether one suits your property.
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These guides are written for people deciding how to answer their door not for search engines. Where a claim depends on your phone, your building or your internet connection, we say so rather than glossing over it.
What is a QR code video doorbell?
How QR visitor calling works, where it fits, the honest advantages and disadvantages, and how it compares with a conventional smart doorbell.
Read more GuideWhat is an NFC video doorbell?
Tap-to-connect visitor communication explained: how NFC works at the door, which phones support it, and how it differs from scanning a QR code.
Read more Buying guideVideo doorbells without subscriptions
What subscriptions usually pay for, what you lose without one, and the questions to ask before you buy any doorbell.
Read more GuideCan you have a video doorbell without batteries?
Battery, wired and visitor-initiated doorbells compared and why the DoorVi sign itself needs no power at all.
Read more GuideCan a video doorbell work without home Wi-Fi?
A straight answer about what needs an internet connection and what does not, with no misleading claims either way.
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