Looking for more comfortable way how to monitor your glucose levels? If you have a Samsung TizenOS smart watch then this is the ideal app for you! THIS APP IS NOT FOR GALAXY WATCH 4 / 5. USE G-Watch Wear App FOR THESE WATCH MODELS. G-Watch App consists of an Android mobile G-Watch Service application and companion Samsung smart watch face. G-Watch Service collects glucose values provided by 3rd party CGM applications and sends collected data to the watch. G-Watch watchface then displays recei