If you’re looking for a lightweight, slim and smartly designed smartphone which can double up as a waterproof, dust-proof and shock-resistant device used for work as well as entertainment, your search may be over.

Handheld Group, a Swedish manufacturer of rugged mobile computers, has launched an ultra-rugged smartphone Nautiz X1, touted as the toughest smartphone in the world.

"The Nautiz X1 is the toughest smartphone ever built, suitable for both field professionals and outdoor enthusiasts,” said Jerker Hellstrom, CEO at Handheld Group. “Having manufactured truly rugged mobile computers for many years, ruggedness is in Handheld's DNA. This is no ordinary smartphone. With the Nautiz X1, we are providing a smartphone that delivers the reliability and sturdiness of an ultra-rugged computer."

The Nautiz X1's IP67 ingress protection rating means it's completely protected against dust and sand, and can withstand immersion in water. It also meets stringent MIL-STD-810G military standards for enduring humidity, vibration, drops and extreme temperatures.

Weighing merely 180 grams (6.3 ounces) and measuring only 125x65x15 mm (4.9"x2.6"x0.6"), Nautiz X1 is probably the lightest, slimmest rugged smartphone on the market. It has a 4-inch WVGA tamper proof capacitive touchscreen that can also be read in sunlight.

Powered by a 1 GHz dual-core processor and 512 MB of RAM (News - Alert), and 2 GB of onboard storage, the full-featured Nautiz X1 provides reliable voice and high-speed data transmission over GSM or CDMA networks and connects to 802.11 b/g/n Wi-Fi networks. It also features Bluetooth, GPS and a 5-megapixel camera, and comes with the latest Android (News - Alert) 4.0 (Ice Cream Sandwich) or Windows Embedded Handheld 6.5 operating system.

Different battery options will enable a full day's work under any condition or environment.

Similar to the rest of Handheld's lineup of rugged PDAs, smartphones and mobile computers, the Nautiz X1 is specifically developed for field workers in industries such as geomatics, logistics, forestry, public transportation, utilities, construction, maintenance, mining, military and security.

Want to learn more about today’s powerful mobile ecosystem? Don't miss the Mobility Tech Conference & Expo, collocated with ITEXPO West 2012 taking place Oct. 2-5 2012, in Austin, TX. Stay in touch with everything happening at Mobility Tech Conference & Expo. Follow us on Twitter.