I can not do without 6

Superb little device that allows you to schedule your sessions, save them if you like. There is nothing complicated to program the Gymboss, the record is sufficient (although the characters are too small). It carries everywhere, in your pocket, can be clipped to your clothing. Ideal for holidays and for any indoor or outdoor sport (crossfit, tabata, HIIT, running with split ... meeting boxing or skipping rope). Quite simply I can not do without me. It is for me an excellent investment.