The Casio G'zOne Commando is absolutely the choice if you want a rugged and durable Android smartphone. Its tough construction is built to withstand everyday drops and spills, so it's well suited for industrial workers or simply those who love the great outdoors.

The Casio G'zOne Commando is a smartphone which is ruggedized and runs the Android operating system.

Casio G'zOne Commando

Casio Duro Microsoft founder Bill Gates is often seen sporting a Casio Duro, a model that retails for around US$70.

The best digital and analog-digital watches for military personnel, law enforcement, and athletes. G-SHOCKs are considered the most durable, toughest, and reliable watches by outdoor aficionados.

G-Shock watches are built to withstand the most demanding conditions, from extreme temperatures to heavy impact. They are water-resistant, shock-resistant, and even magnetic-resistant, making them perfect for outdoor activities, sports, or work in harsh environments.

Casio F-91W digital Usage in terrorism According to secret documents issued to interrogators at Guantanamo Bay, obtained and released by The Guardian, "the Casio F-91W digital watch was declared to be 'the sign of al-Qaeda' and a contributing factor to continued detention of prisoners by the analysts stationed at Guantanamo Bay.

Omega Speedmaster watches have been used multiple time on trips to space. Elon Musk has also been seen wearing an Omega watch. His model of choice appears to be the Seamaster Aqua Terra, which retails at a similar price point, according to GQ.

What Kind of Watch Does Elon Musk Wear?

• OmegaSpeedmaster Racing Automatic Chronograph Men's Watch 326.30.40.50.01.001.
• RolexSubmariner Automatic Chronometer Black Dial Men's Watch 124060BKSO.
• OmegaSeamaster Automatic Blue Dial Steel Men's Watch 210.30.42.20.03.001.
• Seiko5 Automatic Black Arabic Dial Men's Watch SNKP21J1.

Microsoft founder Bill Gates is often seen sporting a Casio Duro, a model that retails for around US$70.

G-SHOCK watches are known to produce some of the toughest, most durable military and tactical digital watches in the world, designed to take an extreme amount of abuse.

G Shock watches are known to last a lifetime, but the bands wear out after prolonged use. To replace them, place the watch facing downwards on a soft cloth, unhook the spring bars located at the base of each strap. Some models have the bars covered while others are exposed.