GTR comes in a classic design with a touch of modern features. It has a brilliant 1.2 AMOLED display, and a gallery of watch faces to choose from to fit any style. Smart sports tracking-includes smart sport tracking technology that allows you to record 12 different sports and fitness activities including running, cycling, swimming, mountaineering, etc. Keep an eye on your health and fitness with the GTR that comes with innovative BioTracker PPG Bio-Tracking Optical Sensor to accurately monitor your heart rate 24/7. Stay informed all day long with smart notifications and custom vibrations for your favorite apps like email, text, Facebook, etc. Use the GTR for 10 days on a single charge.