The FT4 has Automatic Target Zone to improve the level of intensity during workouts, average and maximum heart rate of training, HR based target zones with visual and audible alarm, HRmax (user set), Polar OwnZone (coded transmission), and Polar OwnCal (calorie expenditure). Stores totals for number of sessions, training hours, in-zone training time, and calories burned. View daily or weekly files. Features 8 languages, dual time zone, stopwatch, water resistant 50m, and 10 file memory. Includes a comfortable fabric transmitter and coded heart rate transmission to avoid cross-talk, FT4 training computer, WearLink transmitter, inGetting Started in guide, e-manual online.