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With the Samsung A640, you get support for Sprint's Ready Link walkie-talkie feature, which makes it easy to instantly communicate with anyone on a Ready Link capable phone. When you add that to speaker independent voice dialing, a speakerphone, Bluetooth, a VGA camera, and a big color screen, you've got a powerful tool for mobile productivity. On top of all that, this phone has a unique look that's sure to turn heads. Design The A640's handsome clamshell form factor houses an internal 128 x 160, 65,000-color display. There's also a supplementary, 80 x 64 OLED multi-color display that displays call information, battery life, time of day, signal strength and more. Above this display you'll find the phone's VGA camera unit. An extendable antenna is located on the top right side of the phone, while most of the phone's features and on-screen menus are controlled by a five-way center button above the handset's dial pad. The Ready Link service is operated by a button on the left side of the phone-- walkie-talkie style. A 2.5 mm headset jack is also provided, as is a USB data port. The A640 also sports an internal antenna, so there's nothing to snag in your pocket. Calling Features The phone's built-in address book allows you to assign up to 300 entries, each storing five numbers. You can customize your caller ID by linking a downloaded image or one of your photos to a specific phone number in your contact list. Likewise, you can associate callers with specific ringtones. And speaking of ringtones, the phone supports polyphonic (32-chord) melodic ring tones, as well as a vibrating alert. The A640's GPS location technology pinpoints your exact location when you dial 911 (where available). Perhaps most importantly for users in rural areas, the A640 is a tri-mode phone, meaning it can operate on Sprint's digital PCS network, as well as analog networks that serve many outlying areas. Hands-free operation of the phone is easy with the built-in speakerphone, while speaker independent voice dialing allows you to speak the names of your most important contacts and call them instantaneously. There's no voice training involved. Just speak a contact and dial it. Meanwhile, The A640's Ready Link feature lets you enjoy the convenience of quick, walkie-talkie style communication at the touch of a button with one or several Ready Link users anywhere you go (Sprint PCS Ready Link service charges apply). And lastly, because the A640 is Bluetooth enabled, wireless headsets can be configured with the phone for total handsfree operation. Messaging, Internet and Tools The A640 covers the messaging basics with support for sending and receiving text and picture messages. T9 text entry, which is a technology that makes it easier for people to enter words and text on handsets, is built-into the unit-- a plus for mobile email and text messaging users. You can also use an optional USB cable to provide wireless Internet and email access to your PC. The phone also supports PCS Vision email and instant messaging capabilities. Sprint PCS Vision transforms the wireless experience from something that's simply functional into something visual, entertaining and highly personalized. MSN Hotmail, Yahoo Mail, and AOL Instant Messenger are all supported by Sprint's PCS Vision service. PCS Vision mobile Web services let you check out sports scores, get your seven-day forecast, check your flight status, and stay up to date with the latest news. You'll also experience full-color graphic versions of popular Web sites. A number of handy software tools are bundled with the A640 including a calendar, a calculator, and an alarm clock. A voice recorder lets you record up to five minutes of voice memos for later retrieval. Additionally, if your phone is ever lost, stolen, damaged or replaced, you can use Sprint's optional Wireless Backup service to restore your contact information quickly and easily. Imaging and Entertainment As mentioned, the A640 features a built-in VGA still camera with brightness and white balance control, as well as a self-timer. The phone lets you choose from a variety of pre-set images to customize your display and make it unique to you. With PCS Vision's wireless download service, you can reflect your interests with thousands of pictures of your favorite TV characters, sports teams, celebrities, urban artwork, and more. You can also download games like Tetris and Pac-Man for hours of fun. Vital Statistics The Samsung SPH-A640 weighs 3.2 ounces and measures 3.6 x 1.8 x .9 inches. Its lithium-ion battery is rated at up to 3.8 hours of digital talk time and 168 hours of standby time. It runs on the AMPS 850/CDMA 850/CDMA 1900 frequencies. The phone comes with a one year limited warranty. Why should your phone look like everybody else’s phone? Why should you have to take all that time dialing? The SPH-a640 has a sleek, glossy black, disappearing external screen, Ready Link(sm) instant-connect technology and a bunch of other cool features you’ll want to show your friends.