The mobile phone was unveiled by the world’s greatest explorer, Sir Ranulph Fiennes, fresh from his successful ascent of Mount Everest.
The deal, brokered by The Beanstalk Group, sees Sonim produce the world’s first IP-67 rated GSM mobile phone - a standard which indicates it has been tested and found to be totally impervious to dust, as well as dirt, shocks and drops.
The phone is also completely waterproof to a depth of one metre for up to 30 minutes and is resistant to extreme pressure of up to 400 kgs.
Joining Land Rover's existing range of apparel, bikes and eyewear the handset will continue to uphold the firm’s commitment to developing high quality and durable products.
The current handset will come equipped with a 2Mega-Pixel waterproof camera with built-in flash, built-in GPS, torch light, FM radio, 2GB memory slot, J2ME Java for mobile, WAP browsing through its in-built Opera Mini WAP browser and Bluetooth.
Lindsay Weaver, Land Rover global licensing manager said: "We are very excited about the launch of the S1 mobile phone. Like our vehicles this phone is extremely capable and will work in the toughest of environments.
“Designed to meet the needs and demands of the outdoor adventurer the phone has an IP-67 rating, which is a first for a commercially available GSM handset, and is operational in temperatures ranging from -20 to 55 degrees Celsius and backed by an unconditional three-year guarantee.
"We have worked with Sonim to ensure that the phone not only meets their stringent criteria of ruggedness, but also to ensure that this is a true Land Rover product."
Bob Plaschke, CEO of Sonim Technologies, commented: “When we started making these handsets, there was no standard for how to test and benchmark rugged phones, so we created our own.
“We are delighted to be working with Land Rover on this product. This ultra-rugged phone will be a great addition to its merchandise range and we know it will appeal to the adventurous spirit of Land Rover’s customers."