The waterproof Xtreme performance 3 (XP3) is Sonim’s latest addition to its Xtreme Sports Series.

The water-proof aspect of the device has conjured interest within the plumbing community.

Sonim claims the phone can be dunked for a full 30 minutes in a metre of water. Even the buttons have been toughened up, to withstand 500,000 pushes before breaking.

Bob Plaschke, CEO of Sonim Technologies, said: ‘For these people, having a phone is a tool, not a fashion accessory. They need a mobile handset to withstand some of nature’s harshest conditions. The Sonim XP3 is capable of working at -20C or at +60C without breaking down. We are committed to the rugged consumer, and the XP3 further proves our dedication to this community.’