Apple IPhone 5
Apple’s latest hit product, the iPhone 5, may be the cheapest new smartphone on the market in terms of energy costs, according to a recently released study. The cost of charging an iPhone 5 for an entire year? Only 41 cents.

A week after its worldwide release on major U.S. carriers like AT&T, Verizon and Sprint, Apple’s sixth generation iPhone, the iPhone 5, is now set to arrive on a number of regional carriers starting Friday.

According to a PCMAG report, the list of regional carriers that are going to start selling the new flagship smartphone included Cellcom, nTelos, Appalachian Wireless, C Spire, GCI and Leap Wireless' Cricket Communications. US Cellular, the country’s seventh-largest carrier which has never sold any Apple device, was not included in the list.

Among the six carriers, Cellcom, nTelos and Appalachian will offer the iPhone 5 for $50 less than the major carriers in the country – $149 (16GB), $249 (32GB) and $349 (64GB). While C Spire and GCI are yet to announce the price listings, Cricket will sell the device for a price starting at $499.99 off-contract.

"We've seen the anticipation for iPhone 5 grow and are excited to soon offer our customers this fantastic phone on our network," Cellcom CEO Pat Riordan said in a statement.

"We're excited to be offering the amazing new iPhone 5 to our customers at an incredible value," said Jim Hyde, president and CEO for nTelos Wireless. "Now customers can couple the world’s most iconic device with our industry-leading, nationwide unlimited smartphone plans. The best value in wireless just keeps getting better."

Additionally, some of the regional carriers are also offering the iPhone 4S for $49.99 and the iPhone 4 for free.

For more information, click on the respective websites of the carriers below:

Cellcom

nTelos

Appalachian Wireless

C Spire

GCI

Cricket

Apple iPhone 5 comes with a larger 4-inch display with a resolution of 1136 x 640 pixels (326 ppi). The phone is powered by a dual-core A6 processor and has 1GB RAM.

The device runs on iOS 6 and has an 8 megapixel iSight camera with f/2.4 aperture and a hybrid IR filter and a FaceTime HD front facing camera.

Here are some other key specs:

Internal Memory: 16 / 32/ 64GB

Battery: 8 hours of LTE web browsing

Size: 123.8 x 58.5 x 7.6mm

Weight: 112g

Data: LTE and DC-HSDPA; Dual-band 802.11n Wi-Fi support for a wireless experience up to 150 Mbps