I have been using this band for quite long perhaps 3 - 4 months.I had a good experience using it .It understands mine every move it has a military grade sensor .bands gently vibrats to wake me up and also monitors my fitness health, really helps while I workout .battery backup is very good.
It is quite light in weight and is affordable too.I purchased it at 799/-, using band is quite easy, I definately recommend you guys to use this band.