⌚BUILT-IN GPS & 6 SATELLITE POSITIONING SYSTEMS - AMAZTIM M3 Ultra smart watches for men Built-in GPS, The military-grade dual-band and 6-satellite system allows fast positioning in (8-45 seconds), 2-3 times faster than normal single-band 4 satellite positioning smartwatches,The tracker watch also includes an internal compass, altitude pressurization, and altimeter sensors that show your current position, altitude, and air pressure. | ⌚MILITARY GRADE STANDARD(MIL-STD-810H) & STAINLESS STEEL BODY - AMAZTIM M3 Ultra smart watch features Corning Gorilla screen, Mohs hardness up to 9H, it's strong enough to deal with a range of screen-destroying behaviors. Military-grade Stainless Steel materials make it indestructible and most durable. Successfully passed 15 military tests of the highest military toughness standard (MIL-STD-810H), including salt spray, rain, impact, etc. It can easily face any harsh environment. | ⌚SWIMMING WATCH & EXTREME DURABILITY – The AMAZTIM rugged military-grade watch features a fully enclosed ultra-thin case design with exceptional waterproof performance, allowing you to wear it confidently while swimming or diving. Built to withstand harsh environments, it delivers top-tier toughness and resistance. Perfect for blue-collar professionals such as mechanics, truck drivers, and HVAC engineers — no more worrying about cracked screens or scratched watches. | ⌚480MAH EXTRA-LARGE BATTERY - M3 Ultra is equipped with 100% pure cobalt-based battery (military grade), with a battery capacity of up to 480mAh, twice that of traditional smartwatches. At the same time, it adopts an industry-breaking super power-saving AI algorithm to minimize power consumption. Under normal use, the battery life is up to 2 weeks. In power saving mode, the sports mode, health index measurement and other functions can be used continuously for up to 40+ days. | ⌚2.0" ULTRA LARGE AMOELE DISPLAY - The screen has up to 100% RGB color gamut, brightness up to 1000NIT, the display is clearer and more gorgeous. "Always On Display" mode, where the watch always shows the time even when its "asleep", the display never sleeps. | ⌚ANSWER/MAKE CALLS & AI VOICE ASSISTAN - A very handy tool built in the Bluetooth watch. Use your voice to give instructions and the voice assistant will do the rest. You can ask questions, play your desired music, and check weather, set alarms and timers. You can also make voice calls through the voice assistant, makes the scenes that are inconvenient to hold a mobile phone (For example: driving) in daily exercise and life more concise and smart.