The Vivofit 4 is in a difficult market to compete in with stiff competition from the likes of Huawei, Moov and many more firms. But it's a generally good device and while it is missing some features we'd like to see on your wrist, if you're looking for a basic tracker it's likely this will make you...
Incredible battery life; A color screen; Low price
No GPS or heart rate; Lacks phone notifications; Sometimes difficult interface