It is a simple rubber bracelet with hidden display which gets active on double tap . Also there are 5 options for type of color . This is the watch which you can wear it anytime and anywhere or you can never take it off as it is having soft rubber finishing and it is 50 meters water resistance .
But big thing is about its compatibility . It is compatible with no . of Gadgets . including the HTC One M7 and M8; Samsung Galaxy Note II and III; Samsung GS3, GS4, GS5 and GS4 Active; Sony Xperia Z2; and the LG Flex. And its also compatible with iphone 4s and above .
In short its having good battery life but it is compatible with very few models .
Verdict: Before buying this cool gadget, just check whether your cell phone is compatible or not .