As of now SteelHR and HealthMate app in Android and iOS mobile phone can send notifications to SteelHR watch. Calendar reminders are one of those. However, this could be a lot better if SteelHR watch could remember calendar entries from the next few days and to vibrate and show a reminder text even when mobile phone is not within bluetooth range to send this notification event.
SteelHR could read and store calendar entries everytime it is synced with HealthMate app or the HealthMate app could check if there are changes within the calendar entries from the next few days and push those changes to SteelHR if it is within BT range.
This way I wouldn't miss a meeting even when I'm wasting time by a copying machine/vending machine/cafeteria and mobile phone is not with me.