1.
activity tracker; fitness tracker; activity monitor
A wearable electronic device that tracks physical activity metrics such as steps, calories burned, heart rate, and sleep patterns.
Composed of 活動量 (amount of activity) + 計 (meter, gauge). The Japanese term specifically emphasizes measuring the quantity of physical activity. In practice, this overlaps heavily with スマートウォッチ (smartwatch) and フィットネストラッカー (fitness tracker).
Common collocations
- 活動量計をつける: to wear an activity tracker
- 活動量計で計測する: to measure with an activity tracker
- 腕時計型活動量計: wristwatch-type activity tracker
- 活動量計のデータ: activity tracker data