Difference Between Triband & Quadband.

The prefix tri- means three and the prefix quad- means four. The simplest answer to the question, “What is the Difference Between Triband and Quadband?” is that quadband phones have one more band or frequency than triband phones do. So, how does this apply to cell phone service? Good question.
It really depends on the type of service you need. The more places you need to be able to use your cell phone, the more frequencies you need. If you need service internationally or globally, you will need a greater number of frequencies than someone who only uses a phone close to home. In other words, between triband and quadband, the latter would be the better option for service that covers more area. For phones that are only going to be used locally or regionally, triband should be sufficient.
Service can be provided utilizing six different frequencies, ranging from 450 to 2100 megahertz, yet the lowest and the highest are not typically germane to the question concerning triband and quadband phones. Most triband and quadband phones operate using a combination of 850, 900, 1800, 1900 MegaHertz, with quadband utilizing each of them.

The biggest difference between triband and quadband phones may be the location from which service originates. In Europe and Asia, a good example is a cell phone service provider that equips its phones with the 900 and 1800 MHz frequencies to cover local use but also adds the1900 frequency to allow for roaming. In North America, it may be basically the opposite. North American cell phone service providers generally utilize the 850 and 1900 MHz frequencies and 1800 for use outside the continent.
Since the majority of cell phone users are not continent hopping on a regular basis and instead tend to use their cell phones closer to home, many new phones are triband. It pays to do some research to find out what type of cell phone and service package will best meet your needs. If you do tend to travel regularly, especially outside the country, you are likely to find definite differences between triband and quadband. With the choices being triband and quadband, quadband may offer not only greater versatility but also greater savings.
In the past, some users were led to purchase more than one phone and more than one service package, using one at home and one abroad. As entrepreneurs increase in numbers and may need to travel regularly, quadband phones may well be utilized more frequently. They can cover both personal and business needs without the need for an extra phone and service package.