Dual Band vs Tri-Band WiFi: Key Differences Explained

This article breaks down the differences between Dual Band WiFi and Tri-Band WiFi, explaining the benefits of each. We’ll also touch on Tri-Band phone manufacturers.

WiFi networks consist of WiFi routers (also known as Access Points or APs) and WiFi stations (STAs), which are the client devices connecting to the network.

There are two main modes of communication in a WiFi network:

• Ad-hoc: A peer-to-peer communication style, forming a mesh network.
• Infrastructure: A star-like communication setup, where all devices connect through a central access point.

WiFi operates on the 2.4 GHz, 4.9 GHz, and 5 GHz frequency bands, according to various WLAN standards like IEEE 802.11a, 11b, 11g, and 11n, which are used globally.

Dual Band WiFi

• The term “Dual Band WiFi” is most often used when referring to WiFi routers.
• These routers utilize two wireless bands: 2.4 GHz and 5 GHz.
• Dual Band WiFi routers can support a larger number of devices (STATIONS) compared to single-band routers.
• With two distinct operating frequencies, there’s less interference on the network. These bands can be allocated to everyday devices like tablets, laptops, and smartphones, as well as less frequently used devices like printers and cameras.

Tri-Band WiFi

• The term “Tri-Band WiFi” is also associated with WiFi routers and stations.
• These routers use three wireless bands: one 2.4 GHz band and two 5 GHz bands.
• Tri-Band WiFi routers can accommodate even more WiFi devices/stations than Dual Band WiFi routers.
• Having three bands available contributes to faster overall speeds.

There are also Tri-Band phones available from various vendors. Popular manufacturers include Samsung, Lenovo, and Motorola. These phones support three cellular frequency bands for different wireless technologies/standards.