The Samsung SPH-A640 (also A640) is a tri-mode dual band

cellular telephone A mobile phone, cellular phone, cell phone, cellphone, handphone, hand phone or pocket phone, sometimes shortened to simply mobile, cell, or just phone, is a portable telephone that can make and receive telephone call, calls over a radio freq ...

developed for

PCS A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or techn ...

carriers like Sprint Nextel in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

and Virgin Mobile in

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

. It was released in mid to late 2006 in most areas in the United States and other countries such as Canada.

Specifications

The A640 has features that include SMS messaging and Push to talk walkie-talkie technology, VGA rear camera, voice recognition and

Bluetooth Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limi ...

technology, depending on the carrier. It contains an internal antenna, but removing a protector behind the battery slot reveals an external antenna slot. The A640 has a 1.75 inch internal 65k ufb TFT LCD display and 1.82 inch display with external

Organic LED An organic light-emitting diode (OLED or organic LED), also known as organic electroluminescent (organic EL) diode, is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light i ...

monochrome external display. The external display shows the date, time, battery life, signal strength and caller ID (if available). The rear camera of A640 does not have LED flash. The camera has self timer, cropping (Fun Frame), color tone options and, brightness and white balance controls. Also, the camera has three resolution options that are high (640x480 pixels), medium (320x240 pixels) and low (224x168 pixels), respectively. It lacks MP3 or video recording capabilities. With dimensions of 3.6 x 1.8 x 0.09 inches and weighing 3.2 ounces, the

Samsung The Samsung Group (or simply Samsung) ( ko, 삼성 ) is a South Korean multinational manufacturing conglomerate headquartered in Samsung Town, Seoul, South Korea. It comprises numerous affiliated businesses, most of them united under the ...

SPH-A640 comes with a Standard 800

mAh ''Mångha'' (') is the Avestan for "Moon, month", equivalent to Persian ''Māh'' (; Old Persian ). It is the name of the lunar deity in Zoroastrianism. The Iranian word is masculine. Although Mah is not a prominent deity in the Avestan script ...

Li-Ion Battery, Travel Charger, and User Manual. There is no way to unlock this device for use on other networks besides the specific CDMA network for which the phone was built.

Reception

Kent German from CNET reviewed the Sprint model of Samsung SPH-A640 and gave it 6.6 out of 10 points. He praised the clear call quality, and considered the VGA camera, Bluetooth and speakerphone as the pros of the device. However, he criticized the design and noted that it was difficult to hear the speakerphone calls in loud environments. He concluded that Samsung SPH-A640 was a "functional and well-performing cell phone for midrange users".

References

A640 Mobile phones introduced in 2006 {{Samsung-mobile-stub