Coros Apex 4 42mm on run Constructed with a sleek upper

Constructed with a sleek upper and extra durable outsole

5-minute fast charge — approx

Full-length slotted carbon fiber plate: Delivers smooth transitions and explosive propulsion with each stride

Effective self-massage for back

Coros Apex 4 42mm on run Constructed with a sleek upperThe Coros Apex 4 is engineered for mountain athletes who demand precision, durability, and elite performance in the harshest environments. Built with an alpine grade titanium bezel and scratch resistant sapphire glass, its designed to help you train harder, climb higher, and race further all while delivering ultra accurate GPS, fast mapping, advanced recovery data, and best in class battery life. From steep trail ascents to long ski tours and high