I used this band about 3 months but it get lost due to its low build up quality This band has middle metal box which is main part and it is fixed in rubber belt but when rubber get loose the main part is not properly fixed between that rubber belt because of this problem my bands main part get lost in 3 months The look and feel is good but not stylish it’s black color is regular and other available colors are not look good It has bluetooth connectivity but after few days the blutooth connection disabled automatically This band has sleep traker but it doesn’t work properly It doesn’t show correct sleep hours overall other features works good and shows correct activities It’s design is very simple but the design can be modified it’s style is not so fashionable The battery life is good it works upto 18 days when full battery charge It took upto 3 hours to full charge The band is overall average and useful but not 100 % reliable This band has good pricing but it can be lowered I think its little costly but it though good and work good.