AT&T is all set to start selling waterproof and dustproof Samsung Rugby Smart from March 4 onward. The Samsung Rugby Smart is a rugged, dustproof device designed to handle the elements with water resistance (submergible up to 1m for 30 minutes) and built to mil-std 810f military spec standards. The Android 2.3 smartphone features a 3.7-inch WVGA Super AMOLED touchscreen display and a 5MP rear facing with flash and auto focus with HD 720p video capture; 1.3 MP front facing camera.The smartphone supports external memory upto 32GB via microSD card and an internal memory of 4GB. It also supports 4G service, Wi-Fi, corporate email and the full line of media including location, music and social networking services. “We continue to bring the highest quality devices – the Rugby Smart is the ultimate smartphone to withstand extreme conditions,” said Dale Sohn, president of Samsung Mobile.