boAt Cosmos Pro: Buy boAt Cosmos Pro | Bluetooth Calling Smartwatch with 1.78' AMOLED Display, 700+ Active Modes, Heart Rate & SpO2 Monitor from boAt. Light it up with boAt Cosmos Pro and transform yourself. Experienced enhanced Bluetooth calling on-the-go with the ability to save up to 10 contacts! The 1.78” AMOLED display is the best-in-class display in its segment. With over 700+ active modes, a heart-rate and SpO2 monitor, sedentary and hydration alerts, and more, Cosmos Pro is here to turn the tide! Shop now