| 1 | Premium wired smart doorbell | Dual-band Wi-Fi 6, including 5 GHz Wi-Fi; Ethernet usually unavailable | 2K to 4K, commonly 16:9 or vertical HDR | At least 10 Mbps upload recommended for reliable 2K/4K live viewing | About 100–300 ms on a strong local connection | Existing low-voltage doorbell wiring; transformer commonly needs 16–24 V AC | Cloud recording, microSD, or network video recorder depending on design; check regional data hosting | Urban homes with stable broadband and frequent live viewing | Very strong for 5 GHz Wi-Fi; not a cellular 5G device |
| 2 | Battery-powered dual-band doorbell | 2.4 GHz and 5 GHz Wi-Fi, normally using automatic band selection | 1080p to 2K | Around 5 Mbps upload is generally sufficient for 1080p; 8–10 Mbps is preferable for 2K | About 150–500 ms, depending on sleep mode and cloud routing | Rechargeable battery; optional wired trickle charging on some designs | Cloud storage is common; local storage improves privacy and reduces subscription dependence | Apartments, rental properties, and homes without compatible doorbell wiring | Good 5 GHz Wi-Fi support; battery life may decrease with frequent 5 GHz streaming |
| 3 | Cellular-connected smart doorbell | 4G LTE or limited 5G cellular modem with SIM or eSIM | 1080p is the most practical resolution for mobile networks | A stable 2–5 Mbps upstream connection is typically adequate for 1080p | Approximately 200–800 ms, influenced by signal strength and carrier routing | Battery, wired DC, or solar-assisted power; cellular radios require more energy | Cloud service is common; SIM provisioning, roaming, and data retention rules vary by country | Remote properties, gates, farms, and locations without fixed broadband | The closest match to true cellular 5G readiness; confirm local bands and carrier support |
| 4 | PoE or wired-IP video doorbell | IEEE 802.3af/at Power over Ethernet; optional Wi-Fi bridge or 5G router upstream | 2K to 4K, depending on sensor and recorder | 100 Mbps Ethernet provides ample local bandwidth for high-resolution video | Often below 100 ms on a local network | Single Ethernet cable can carry power and data; requires compatible network equipment | Local NVR or microSD is common; offers stronger local control than cloud-only designs | Commercial sites, large homes, and security-conscious installations | Excellent for use behind a 5G router; the camera itself is usually not 5G cellular |
| 5 | Privacy-focused local-storage doorbell | Dual-band Wi-Fi 5 or Wi-Fi 6 with local network integration | 1080p to 2K | 5 Mbps upload is generally suitable for 1080p live video | About 100–400 ms, depending on whether remote access uses a relay service | Wired power is preferred for continuous recording; battery versions may use event-based capture | microSD, NAS, or NVR storage; local processing can reduce cloud exposure | Users prioritizing data ownership, regional compliance, and minimal recurring fees | Strong 5 GHz Wi-Fi option when encryption, firmware updates, and local controls are supported |