Surveillance cameras with the best types and suitable prices for all types • Resolution (HD / 2K / 4K) → The higher it is, the clearer the image • Type of use → Indoor or outdoor • Connection → Wi-Fi (easy) or wired (more stable) • Night vision + motion detection • Ability to watch from mobile Wi-Fi cameras, for example, are easy to install and suitable for small homes, but they depend on the strength of the internet.