Amazfit T-Rex 3 Rugged Military Smart Watch 48mm, GPS (with Privacy), Offline Maps, Long Battery Life,328 Feet Water-Resistant, 170 Fitness/Sport Modes, AI, Voice Control, for Android or iPhone, Gray

Large, Bright Display: The AMOLED display can reach peak brightness of 2,000 nits; read your maps and workout data easily in any light. Night mode reduces eye strain in the dark, and Glove Mode keeps the screen responsive when wearing 2mm thick gloves. Built for Adventure: Endure any challenge with a 316L stainless steel bezel and buttons. The military-grade body can resist 158°F heat and -22°F cold. Water-resistant to 328 Feet, the watch is great for surfing and can be used for freediving to a depth of 147 Feet. Over 3 Weeks of Battery Life: The Amazfit T-Rex 3 smart watch can last for 27 days with typical use, 42 hours in GPS Accurate Mode, and up to 114 hours in GPS Long Battery Life Mode. With some settings disabled, GPS usage can even last up to 180 hours for long hikes.