Wave Astra - BT Calling Smartwatch with 1.83" HD Display Unleash the extraordinary with the all-new Wave Astra! Experience Crest+ OS that ensures that you effortlessly stay on top of your health. Its mesmerizing 1.83” HD Display offers crystal-clear visuals & Bluetooth calling keeps you connected from your wrist. Step into the future of wearable technology with Wave Astra!