Kyocera is going different by manufacturing rugged smartphones which are water, dust and shock resistant so that the phone can be used in any weather. Kyocera advertises that the phones can be used in battle ground as well near firing ranges. People often spoil their phones by accidental drops on the floor and in water. Children now a days use parents phones without much care causing repeated droppings. Kyocera published one article in its website demonstrating how rugged and reliable their phones are in adverse situations saving a person from a pond.
An Employee Vincent, working at Wild Wings Recycling Facility, CA, accidentally fell into a sewage pond and was unable to reach boundaries because of slippery algae. His phone was in water for more than 30 minutes. He used his Kyocera Rugged phone to call 911. Fire department people immediately arrived and saved him. He obviously thanked Kyocera Rugged Series phone for saving him.
Though this article does not mention anything about specifications, it outlines the concepts of Kyocera to manufacture rugged smart phones.