Military specifications, ease of use, IP rating, affordability and flir thermal are used to select the top three mobile devices for use in harsh conditions. Most of the world's harshest conditions can be survived with a mobile device that has the highest ratings for the aforementioned features.

Here are the top 3 mobile devices for tough and rough use:

The CAT S61 waterproof rugged smartphone is a CAT flagship smartphone that offers some of the best military and other technologies that go above and beyond expectations in the world of ruggedised smartphones.

The phone has a standard 4500 mAh battery, 4GB RAM, and a 64GB ROM. The CAT S61 features an 8MB front-facing camera with LED flash and a 16MB rear-facing camera.
The IP rating of the CAT S61 sets it apart from the competition. The IP rating of the phone is 68. This means that the device has the highest rating of 6 for dust or similar matter protection.

CAT S61 also has the highest possible liquid protection rating of 8. The CAT S61 is one of the most liquid-resistant phones on the market. As a result of the liquid resistance, the CAT S61 is a waterproof phone.

The device includes a number of sensors designed to make your life easier when you're in difficult or hazardous conditions. The device includes sensors such as a P + L sensor, a G sensor, an E-compass, a barometer, an altimeter, and water detect functionality.

The Ulefone armour 9 waterproof rugged smartphone meets almost all of the requirements for a high-end rugged smartphone. When it comes to the operating system, the phone comes with Android 10 pre-installed.

The Ulefone Armour 9 has an 8GB RAM and 128GB ROM, making it one of the most spacious phones in terms of phone memory. Memory can be expanded to a maximum of 2TB.

The phone has a large 6600mAh battery that can last for 42 hours of talk time. The phone's cameras are supplied by Samsung and include a Flir thermal imaging function.

The Ulefone Armour 9 has a triple camera with 64 MP, 5MP, and 2MP resolution on the back. The FLIR thermal imaging function is available on the 5MP camera. For clear night vision, the device has a rear flash. The front camera of the phone is 8MB.

The IP rating of the Ulefone Armour 9 is 68. The rating indicates that the phone can withstand dust, 1.2m drops, and stay untempered for 30 minutes underwater at the depth of 1.5m. It can also withstand extreme temperatures ranging from - 20°C to 55°C.

Possibly the most refined ruggedized smartphone Blackview has ever created. The Blackview BL6000 Pro has a sleek design that makes it appear trendy to own. The phone, whether ruggedized or not, can easily compete with any smartphone in its price range.

The Blackview BL6000 Pro has three rear cameras: a 48MP, a 0.3MP, and a 13MP. The phone has a 16MP front-facing camera for better selfies. The device is equipped with a 5280mAh battery that can provide 38 hours of talk time.

The Blackview BL6000 Pro has plenty of space. The phone has the most storage space on our list at 256GB, and it also has 8GB of RAM.

Blackview BL6000 Pro has an IP 68 rating, you can expect your phone to do the following:

• Withstand water pressure in 1.5m debt for 30 minutes. 
  
• Function at a low temperature of - 30°C.
  
• Maintain its original form from drops of up to 1.5m.
  
• Protecting against close-range high pressure or high-temperature spray downs, and
  
• Resist heat of up to 55°C.

It is always a good idea to have a device that can withstand tough and rough situations. Furthermore, good software is required to ensure that your device performs optimally. Continue to update your software on a regular basis to ensure that your mobile device makes the best use of its components.