Unable to connect to any website in my iPhone mini 5G network

For your Internet connection.

• Over Cellular: contact your Carrier (Cellular Service Provider). The agency that issued the SIM to you
• Over WiFI: Contact your ISP (Internet Service Provider), the agency that provided the Internet Service on your Modem/Router to you

However --> Connect iPhone to the Internet - Apple Support

5G refers to the fifth generation of cellular network technology. It's a wide-area network that uses cell towers to provide mobile internet access to your phone, laptop, or other devices. It offers much faster speeds, lower latency (delay),and the ability to connect more devices compared to previous cellular generations like 4G LTE.

5GHz, on the other hand, refers to a specific frequency band used by Wi-Fi routers. This band offers faster speeds and less interference compared to the more common 2.4GHz band used by Wi-Fi routers. However, the signal strength of 5GHz is weaker and doesn't travel as far as 2.4GHz.

Here's a table summarizing the key differences:

In short, 5G is for connecting to the internet on the go, while 5GHz is for creating a fast and efficient Wi-Fi network within a limited area.

If you connect to Wifi, doesn't necessarily mean you are connected to the internet. --> Internet not available WiFi and Cellular … - Apple Community