The gx patch generates customized results based on your sweat, training style, and body physiology. It is made to work with the Gx iOS app, which gives you a daily schedule of activities to do. I would definitely recommend this product. This allows me to fully optimize, understand, and take my exercise to the next level. I would also recommend getting your hands on gatorade pods, that replenish and rehydrate your body wherever you go. Just add water to your gx bottle and empty a gx pod into it to fuel your body in seconds.