Crafted with military-grade materials and subjected to 42 meticulous processes, the HAYLOU IRON N1 smartwatch ensures exceptional toughness. It has passed rigorous tests, including drop, waterproof, shock, and extreme temperature tests. It has also been tested for shockproof performance, sand and dust resistance, salt spray, damp heat, fluid contamination, fungus resistance, and low and high-pressure durability. This extensive testing guarantees it can withstand harsh environments, making it the ultimate companion for your adventures.