Garmin Forerunner 735XT Form factor - the most lightweight multisport-capable watch ever from Garmin in an attractive, traditional watch shape, with soft, comfortable silicone bands Built-in activities - data support for: running, cycling, swimming, multisport, hiking, xc skiing, strength, paddle sports and cardio 24/7 Heart rate monitoring - Elevate Wrist Heart technology gives you heart rate all day and night -no additional strap required. Connected Features - automatic uploads to Garmin Connect, Live Tracking, audio prompts, music controls, smart notifications and social media sharing. Dimensions & Weight: 44.5 x 44.5 x 11.9 mm & 40.2 g Smart notifications - get any notification from your compatible smartphone all with vibration so you dont miss a thing