The increasing demand for a mobile phone that can do a lot of things, and help its users keep up with the innovations has paved the way for the development of a smart phone. The smart phone is a high-end phone, which offers a combination of the functionalities of a mobile phone and a Personal Digital Assistant, or PDA for short. As smart phones continue to play a big part in our lives, they keep amusing their consumers. Some of the noteworthy additions to them are the Wi-Fi, GPS navigation, mobile broadband, high-resolution touch screens, portable media player and cameras.

A smart phone uses a mobile operating system (OS), which includes Microsoft Windows 7, Apple iOS, BlackBerry OS, Nokia Symbian and Google Android. These mobile OSs, use an API, or Application Programming Interface, to run third-party applications. They also offer a lot more capabilities when compared to ordinary cell phone. In fact, they also allow users to create, and even edit documents, or view them. You can also download applications, which could include both business and personal finance managers.

The emergence of 3G and 4G data networks and the inclusion of Wi-Fi support make the access of smart phones to the Web easy and fast. In terms of messaging, a smart phone has an edge over the ordinary cell phone, because it can handle e-mail, aside from sending and receiving text messages. Other smart phones allow users to access instant messaging services like Yahoo! Messenger and AIM.

Meanwhile, not all smart phones are very popular with consumers. In fact, there are only few that enjoy this increasing demand. Some of these few are listed below.

Apple iPhone 4
The size of this latest smart phone from Apple is 4.5 inches tall, 2.3 inches wide and weighs 4.8 ounces. It has a 5-megapixel camera, featuring LED flash, VGA camera, digital compass, Bluetooth, iPod player, Google Maps, assisted GPS, Safari Browser and FaceTime over Wi-Fi.

Motorola Photon 4G
This smart phone boasts Android 2.3 Gingerbread and also features a dual-core processor, dual-mode GSM/CDMA chipset and 4G WiMax speeds. The overall performance of this smart phone is admirable and this is one of the reasons why it is enjoying growing demands.

HTC Sensation 4G
This phone is supported by a 4G data network, offers an 8-megapixel camera, and the newest version of Android mobile phone operating system. Additionally, it has a dual-core CPU and is available from T-Mobile.

Samsung Droid Charge
The quality of the camera is amazing and users will surely love the Super AMOLED touch screen of this smart phone. Additionally, it offers fast connection to the internet.

Motorola Atrix 4G
This is very impressive because it looks like a computer and its performance is solid. Some of the admirable features of this smart phone include a large qHD display, 5-MP camera and a dual-core processor.

Samsung Infuse 4G
Investing in a good smart phone is common, especially among those who are into business and who prefer to carry light gadgets with them when they travel. The arrival of smart phones means that users can access their emails using these innovative phones.

Investing in a good smart phone is urged especially for those who are into business and who want to bring light gadgets with them when they travel. With the arrival of smart phones, this means that users can access their emails using these innovative phones.