I tried the app on an iphone 6s and a samsung galaxy 6 edge and the app worked great on both of them

Prosinterchangable band strapsheart rate monitorstep trackercalories lostcall alertsleep monitor with amount of deep sleepalarm settingsdistance traveled throughout the dayconsthe band has a clasp that may be difficult to get on its very similar to the fitbit flex if you know which that one isconclusionif youre looking for a fitness watch that has everything the big name brands have but are looking to spend less this is the watch for youdisclaimer i received this product at a discount in exchange for my honest review

Most can be done on the fitness band itself and others can be done through the software

First make sure that you download the veryfit for heart rate app not the veryfit 2