This app requires MyKronoz latest and new collections of Hybrid smartwatches, smartwatches and activity trackers to be used MyKronoz App is compatible with our latest and newest products: ZeTrack+, ZeTrack, ZeTime Regular, ZeTime Petite, ZeFit4, ZeFit4HR and ZeRound3. Discover MyKronoz App, all the connected functions from your MyKronoz devices reunited in one application. From MyKronoz app, you can now add your different MyKronoz devices and keep track of your activities with a daily, weekly