As @recsoares mentioned, it is pretty basic and not extremely accurate, but definitely good for giving an idea atleast. I think Sony one is better too. And best one offcourse is what @topspn above mentioned; Playsight. That one is a different playing field altogether for stats monitoring.@haq777 I don't use any sensors but I've allways wondered if it's worth buying one.
Poslano z mojega SM-G950F z uporabo Tapatalk
As for being worth it or not, I got mine on sale at TW for pretty cheap. I'm pretty satisfied with it.