Samsung has come out with one of the most exciting model under the category of modern mobile communicatin devioce. The Samsung i637 Jack has everything that a modern user would desire in a high end mobile phone. The best part is that the company has retained its signature style quality even after integrating ultramodern features to the phone. The Samsung i637 Jack comes equipped with some of the best cell phone features that you can imagine in a modern yet stylish mobile phone.the phone supports both 2G Network GSM 850 / 900 / 1800 / 1900 and 3G Network HSDPA 850 / 1900 / 2100.The phone measures 117 x 61 x 12.7 mm. Measuring only 102.1 grams the phone has incorporated some of the best features. For instance, the 2.4 inches TFTscreen at 320 x 240 pixels displays 65K colors. The phone has a QWERTY keyboard that makes typing really userfreindly.The Samsung i637 Jack can be put on vibration as and when desired. The phone also comes equipped with an MP3 player. You can also enjoy downloadable polyphonic ringtones and MP3 ringtones. the phone can be put on a speakerphone for handsfree calling experience. The phonebook can literally store unlimited enteries. There is also a photocall feature.Other notable features of this phone include GPRS CLASS10, HSCSD, 3G HSDPA 3.6 Mbps, bluetooth v2.0, a primary 3.15 MP camera with video recording facility, 528 MHZ CPU processor, SMS, MMS, Email, IM, WAP2.0 browser, games, GPS, Java MIDP 2.0 and a lot lot more.