The Garmin Forerunner 55 Whitestone represents a smart watch that becomes an extension of your phone. The smart watch face is protected by chemically hardened glass. The 1.04" screen shows everything you need to know. The design is highlighted by its round face. Normal watch functions, such as mobile Phone Tracking, music player control in mobile phone, weather forecast, Sleep/Do not disturb mode, app store, alarm clock, date, calendar and stopwatch complement various technologies such as pedometer, pulse, activity start detection, distance, calorie tracking, speed, elevation, heart rate zones, floors climbed, interval training, tempo, body regeneration level and virtual coach. This model weighs 37 g.