The Samsung a657 is a rubberised candy-bar which conforms to military grade specifications for vibration, rain, humidity, dust, shock, solar radiation, and temperature and altitude extremes.

The phone is the A657 is certified to Military Standard MI-SID-810F, withstanding dust, shock vibrations, rain, humidity, solar radiation and altitude and temperature extremes.

Specifications and features include:

• Quad-band GSM/GPRS/EDGE connectivity (850/900/1800/1900 MHz)
• Dual band UMTS/HSDPA connectivity (850/1900 MHz)
• 176 x 220 pixels display with 262K colors
• AT&T Navigator (with a dedicated GPS key)
• Built-in flashlight
• Email, Instant Messaging
• Bluetooth 2.0
• USB 2.0
• 100 MB of internal memory
• microSDHC card support, up to 16GB
• Talk time: up to 3 hours
• Standby time: up to 10.5 days
• 4.53 x 2.05 x 0.77 inches
• 4.34 ounces