Vi-time is designed and based on a daily watch. It contains digital algorithm and heart rate sensor, which can track your condition of body. GUI placed focus on the simple graphical expression and other unnecessary graphics were excluded. The sensor on the strap sends a wave signal that we are familiar with and it displays BPM on the screen. Guideline program is installed to give an advice literally about the body or the emotional condition. Time and stopwatch are digitally represented. As a daily objects, it is designed two different types -normal and sports- For different purposes, Vi-time series can be adopted to formal or casual mood. Normal type provides steel infinity loop strap and leather strap. Vi-time sport type is made out of aluminium cover and injected plastic enclosure. Plastic bend has right tension therefore it is fitting to any size of arm wrist.