IP68 vs MIL-STD-810: Rugged Tablet Standards

What IP68 covers

IP68 is part of the Ingress Protection rating system that classifies how well a device resists dust and water. The first digit, 6, means the tablet is completely protected against dust, including fine particles. The second digit, 8, means it can be immersed in water under conditions specified by the manufacturer, typically beyond 1 meter for a set duration. The exact depth and time vary by product, so check the spec sheet rather than assuming a universal limit.

An IP68 rating is useful if your tablet may be splashed, rained on, or dropped into a puddle. It also means the charging port and other openings are sealed against dust, which is important in construction, mining, and outdoor jobs. If you need to sanitize the tablet with water or detergent, IP68 helps because the unit can be rinsed without internal damage.

What MIL-STD-810 covers

MIL-STD-810 is a United States Department of Defense test standard that describes a series of environmental tests for equipment. It is not a single requirement; manufacturers choose which test methods to apply based on the expected use. Common tests include drops onto hard surfaces from specified heights, exposure to extreme hot and cold temperatures, humidity, sand and dust, vibration, and low pressure.

A tablet that meets MIL-STD-810G or 810H has passed the specific methods that the maker selected. For example, a model might be tested for shock and vibration to simulate transport in a vehicle, or for temperature cycles to reflect outdoor use in changing climates. Because the standard is modular, two tablets with the same MIL-STD-810 claim may have undergone different sets of tests. Always read which methods are actually listed in the product documentation.

MIL-STD-810 is not a water resistance test. A tablet can pass MIL-STD-810 drop tests yet have a low IP rating for water. Conversely, a tablet can be fully IP68 but fail a drop test because its screen is fragile. That is why you often see rugged tablet listings that include both certifications.

Key differences between IP68 and MIL-STD-810

The two standards address different physical threats. IP68 focuses exclusively on environmental sealing against solids and liquids. MIL-STD-810 focuses on mechanical stress and climate endurance. IP68 is a rating with a clear two-digit code, while MIL-STD-810 is a family of test methods with no single pass/fail outcome.

For a quick comparison, use the table below.

How to read rugged tablet labels

Look beyond the two badges. For IP ratings, confirm the exact digits: IP67 means the same dust protection but only temporary immersion, while IP68 allows continuous immersion. For MIL-STD-810, find the specific method numbers, such as 516.6 for shock or 514.6 for vibration. These numbers tell you what tests were done and under which severity levels.

Also note that certifications are often self-reported by the manufacturer, not third-party verified. Some brands conduct in-house testing, while others use independent labs. The quality of the test is not visible to you, so factor in the brand's reputation and the warranty that backs the claim.

Because rugged tablets often run Android, the Android Open Source Project provides a good background on how the operating system handles hardware features. For a deeper look at water resistance alone, see our IP68 vs IP69K comparison.

Which standard matters for your work

Choose the standard that matches your biggest risk. If your tablet will be used around water, mud, or heavy dust, IP68 is the floor requirement. If you work at height, in vehicles, or in extreme climates, MIL-STD-810 methods for drop, vibration, and temperature are far more relevant.

For most industrial jobs, you want both. Carrying a tablet that is dustproof and water-resistant but shatters on a 1 meter drop is unacceptable. Similarly, a tablet that survives drops but fails when rain gets into the charging port is not field ready. The guides below match your use case to a tablet with the right certifications.

• Outdoor field service: IP68 plus MIL-STD-810 shock and temperature methods
• Warehouse and logistics: MIL-STD-810 vibration plus IP protection for dust
• Marine and fishing operations: IP68 with emphasis on immersion and salt spray
• Construction and mining: IP68 plus MIL-STD-810 drop and sand resistance
• Emergency services: Both standards plus a bright display for sunlight

Other rugged features to weigh

IP68 and MIL-STD-810 are only part of the story. The tablet's display glass, rubber bumpers, and sealed ports all affect real-world durability. A scratch-resistant display, such as one with Corning Gorilla Glass, is often paired with rugged builds. You can learn more in our comparison of Gorilla Glass and Dragon Trail.

Additional field-friendly features include glove mode for use with heavy gloves, hot-swappable batteries for extended shifts, and compatibility with docking stations or vehicle mounts. These features are not covered by IP or MIL-STD ratings but can determine how well a tablet performs in your workflow.

For a complete list of models that combine these features, see our best rugged tablets guide.

• Glove mode: lets you operate the touchscreen with work gloves
• Hot-swappable battery: replace power without shutting down
• Sunlight-readable display: boosts brightness for outdoor viewing
• MDM compatibility: allows IT to manage devices at scale
• Rugged carry handles and mounting points: simplify field use

What to pick for your use

Questions

Is IP68 better than MIL-STD-810?

They are not comparable because they test different things. IP68 is specifically about dust and water ingress, while MIL-STD-810 covers drop, temperature, vibration, and other environmental stresses. A tablet can be excellent in one and weak in the other. Choose based on which hazard is more likely in your work.

Does MIL-STD-810 include water resistance?

Some MIL-STD-810 test methods deal with rain, humidity, and salt fog, but they are not equivalent to an IP rating. IP68 sets a clear immersion limit, while MIL-STD-810 methods simulate specific conditions like blowing rain or steady humidity. For guaranteed underwater survival, an IP68 rating is more relevant.

Can I trust a tablet that only has MIL-STD-810?

Yes, if you need drop and shock protection and your tablet is unlikely to get wet. Many rugged tablets are built for construction and outdoor use and rely on MIL-STD-810 for physical durability. Just verify which test methods were performed, because not every MIL-STD-810 certification covers the same tests.

Why do some rugged tablets cost more than others with similar ratings?

The certification is only one factor. Display quality, battery capacity, processor speed, and support services also drive price. A tablet with IP68 and MIL-STD-810 may still have a lower-end processor or a dimmer screen. Use the buying guides to compare specs beyond the rugged badges.

Are IP68 and MIL-STD-810 certifications valid forever?

No. Dust and water seals wear out over time, especially if the tablet is dropped repeatedly. A tablet that was IP68 when new may lose protection after heavy use. The MIL-STD-810 test results are based on new units, so treat the rating as a starting point and inspect seals and ports regularly.