Wi-Fi uses radio technologies and wireless networks to connect devices within a home or business without cables, providing secure and reliable connectivity at fast speeds. WiMax is a telecommunications technology that uses various transmission modes to provide wireless broadband access at speeds up to 10 Mbps without cables, based on the IEEE 802.16 standard. While Wi-Fi is used for in-home or in-office wireless networks, WiMax can provide broader outdoor wireless coverage including for developing countries due to its lower infrastructure costs compared to cables or copper wires.