Rugged smartphone

A rugged smartphone is a specific type of toughened smartphone which is designed to be completely sealed within a durable housing to protect it against damage from water, shock, dust, and vibration. Rugged smartphones are designed to survive extreme weather and temperatures, accidental damage, and rough handling; making them ideal for working outdoors, or in harsh environments, along with use during extreme sports, such as sailing, rock climbing, etc. Most rugged smartphones have been tested to tough IP68 standards.

However, not all waterproof smartphones will be ruggedised.

Classification
There are three general types of rugged phone:
 * Outdoor sports
 * Military
 * Stylish

Functional requirements
The following IP code ratings for ingress protection (IP), as defined by the International Electrotechnical Commission (IEC) standard 60529 (equivalent to European standard EN 60529), are typically used for certifying various toughened and ruggedised smartphones.

Primary standard
IP56 — Solid particle (dust) protection level 5 (protection from harmful dust) and liquid ingress (waterproof) protection level 6 (protection from high pressure water jets).

Intermediate standard
IP57 — Solid particle (dust) protection level 5 (protection from harmful dust) and liquid ingress (waterproof) protection level 7 (protection from full immersion at depths between 15 cm and 1 m).

Advanced (professional) standards
IP67 — Solid particle (dust) protection level 6 (protection from all dust) and liquid ingress (waterproof) protection level 7 (protection from full immersion at depths between 15 cm and 1 m).

IP68 — Solid particle (dust) protection level 6 (protection from all dust) and liquid ingress (waterproof) protection level 8 (protection from full immersion at depths determined by the manufacturer).

IP69K — In the IEC 60529 rating system for ingress protection (IP), IP6 * refers to the product's ability to resist ingress of dust. The IP * 9K refers to the product's ability to resist ingress of high temperature (steam) / high pressure water. If the device passes all these tests, then it can be considered as IP69K rated smartphone, and can be used in harsh environments with high pressure / steam cleaning.

Testing procedure per ISO 20653

 * 1) A spray nozzle that is fed with 80 C water at 80–100 bar and a flow rate of 14–16 L/min.
 * 2) The nozzle is held 10–15 cm from the tested device at angles of 0°, 30°, 60°, and 90°, for 30 seconds each.
 * 3) The test device places on a turntable that rotates once every 12 seconds.

MIL-STD-810G
MIL-STD-810G is a U.S. military standard that stipulates a level of durability for an item of equipment. Specifically, it means the equipment has been subjected to a series of twenty-nine (29) tests, including shock tests, vibration tests, and more. This means it should be field ready, or even 'combat ready' in principle. A lot of technology sold to the U.S. military must be MIL-STD-810G compliant.