The short answer
For most new installations, IP (network) cameras are the better choice: higher resolution, smarter features and simpler cabling with PoE. Analogue HD can still make sense when you are upgrading an older system and the existing coaxial cables are in good condition.
How they work
- IP cameras turn the image into digital video inside the camera and send it over network cable to a network video recorder (NVR). With Power over Ethernet (PoE), the same cable powers the camera.
- Analogue HD cameras send video over coaxial cable to a digital video recorder (DVR), which digitises it. Power usually runs separately or through a combined cable.
Side by side
- Image quality: IP cameras are available in a wider range of higher resolutions; analogue HD has improved but generally offers fewer options at the top end.
- Smart features: person/vehicle detection, line-crossing and better compression are more common and more capable on IP systems.
- Cabling: IP uses one network cable per camera (with PoE); analogue uses coaxial cable plus power.
- Flexibility: IP systems can use network switches and existing network infrastructure to reach distant cameras.
- Upgrade cost: analogue HD can reuse old coaxial cabling, which may reduce labour in finished buildings.
Which should you choose?
- New villa, office, shop or warehouse: IP.
- Older system with good coaxial cabling and a limited budget: analogue HD, or a hybrid recorder that runs both while you upgrade in stages.
- Premises with formal requirements: choose equipment that meets the required resolution and recording standards for your premises type.