By the SightShield team · · 3 min read
Two ways to see who is at the door
A video door phone (VDP) is a wired system: an outdoor camera unit with a call button, connected by cable to an indoor screen. A Wi-Fi video doorbell is a single device at the door that connects to your Wi-Fi and rings your phone. Many newer VDPs combine both — an indoor screen plus a phone app.
Comparison
| Wired video door phone | Wi-Fi video doorbell | |
|---|---|---|
| Indoor screen | Yes, one or more monitors | Usually no; answers on the phone (some have chimes) |
| Reliability | Very reliable; does not depend on Wi-Fi | Depends on Wi-Fi strength at the door |
| Answering away from home | With Wi-Fi/IP models | Yes |
| Gate or door lock release | Yes, built in on most models | Limited; needs extra hardware |
| Multiple floors | Add monitors on each floor | Every family member’s phone rings |
| Power cuts | Can run on inverter backup | Battery models keep working; router needs backup |
| Installation | Cable between door and indoor monitor | Quick; often no cabling |
| Best for | Houses and villas with gates; elderly users | Flats and renters; tech-comfortable families |
When to choose a wired video door phone
- You have a gate some distance from the house and want to open it from inside.
- Elderly parents or staff should answer the door on a simple screen without a phone.
- There are several floors and you want a monitor on each.
- The Wi-Fi signal at the gate is weak.
When a Wi-Fi doorbell is enough
- An apartment flat where the doorbell is near the router.
- You want to answer from anywhere — office, travel — and do not need a screen at home.
- Renting, where drilling and cabling are limited.
Installation and power
A wired video door phone needs a cable from the outdoor unit to the indoor monitor — two or four wires for analog systems, or Cat6 for IP systems — and power for the monitor. Wi-Fi doorbells run on a battery or the existing bell wiring, with a strong Wi-Fi signal at the door. At a gate far from the house, Wi-Fi is often weak; a wired or IP system is more reliable there.
Features worth paying for
- Wide-angle camera with good night vision.
- Calls to the phone app when no one answers indoors.
- Gate or door lock release from the monitor and app.
- Multiple indoor monitors for different floors.
- Intercom between monitors inside the house.
- Recording of visitor clips or snapshots.
- Weatherproof, vandal-resistant outdoor unit for the gate.
The best of both
IP and Wi-Fi-enabled video door phones give you an indoor screen for the family and app answering for when you are out, plus gate release from either. Paired with gate automation, you can see a delivery person at the gate, speak to them and open the gate — from the living room or from your office.
Video door phone installation →Quick answers
Can a video door phone open my gate?+
Yes. Most video door phones can release an electric lock on the gate or door, and they can be linked to gate automation.
Does a video door phone record visitors?+
Many models store snapshots or short clips of callers. For continuous recording, connect a CCTV camera at the gate as well.
Will my video door phone work in a power cut?+
Yes if it is connected to the inverter. Wi-Fi doorbells also need the router to be on backup to ring your phone.
Can I connect a video door phone to my CCTV?+
Some IP door phones can be added to compatible NVRs or apps; otherwise a separate camera covers the gate.
Do Wi-Fi doorbells work in apartments?+
Yes, where Wi-Fi reaches the door and the association allows them. Point them at your door, not neighbours’ doors.