Sonim’s XP1 phone is already unquestionably the world’s toughest, so the imminent release of the even tougher XP3 is more than noteworthy, particularly for those of us who spend a lot of time near, on or in the water. The XP3 can withstand more shocks and drops than its predecessor, it’s buttons have been tested to function beyond 500,000 pushes, and boasts a Military Spec rating of 810F against salt, fog humidity, transport and thermal shock. It is capable of working at -20C or at +60C, which is way better than the human body, and comes with a three year, no-questions-asked guarantee. Most significantly though, it can be fully submersed in up to a meter of water for 30 minutes. All this means you can call your pet goldfish.