LEARNit Dictionary
activity tracker
noun
/ækˈtɪvəti trækə(r)/
UK
/ækˈtɪvəti trækər/
US
1
a device that you can wear that records your daily physical activity, as well as other information about your health, such as your heart rate
ردیاب فعالیت, ردیاب سلامت, ردیاب تناسب اندام