What is a good WiFi frequency band in use?

Ideally, the 2.4GHz band should be used to connect devices for low bandwidth activities like browsing the Internet. On the other hand, 5GHz is the best option for high-bandwidth devices or activities like gaming and streaming HDTV.

2.4 GHz vs. 5 GHz: Which frequency should you choose? A 2.4 GHz connection travels farther at lower speeds, while 5 GHz frequencies provide faster speeds at shorter range . Your choice of 2.4 GHz or 5 GHz will depend on where and how you use your WiFi connection most.

The 2.4 GHz band, which runs from about 2,400 to 2,483.5 Mhz , is where routers have to live. For this, they can thank the microwave. Microwave ovens heat food by blasting it with, literally, microwaves.