wristbandtracker
nounUK /ˈrɪst.bændˌtræk.ər/
US /ˈrɪst.bændˌtræk.ɚ/
A small gadget you wear on your arm that keeps track of things like your steps or heart rate.
My wristbandtracker says I walked ten thousand steps today.
OTHER MEANINGS
2. A device used to monitor the location of a person, such as a child or patient, via a band worn on the wrist.
The hospital gave each patient a wristbandtracker so nurses could find them quickly.
3. A wrist strap that records data for access control or event check-in.
Your wristbandtracker will let you into the concert and log which stages you visit.
4. A band that tracks sports performance metrics for athletes during training.
The coach reviewed the wristbandtracker data to see how fast each runner sprinted.