Activity Monitor HJA-313

The activity monitor uses OMRON's proprietary "Active Engine 2" technology to measure your physical activities, including household chores, desk work and walking, and calculates the number of calories burned in a day.

Availability of models varies across countries. Please contact our local offices for more information.

Download Usage Manual

  • Overview



Active Engine 2 technology

Super slim and lightweight

Easy to read LCD display


  • Workout (Jogging) mode
    • Pace
    • Calories burned
    • Time
    • Distance
    • BEST Record
  • Weekly Diet support - supports your weight reduction program
    • Measurement values for up to 8 previous weeks
  • Achievement Level Indicator
  • Fat Burned
  • Total Calories Burned
  • Count steps
  • Distance walked
  • Backlight - for night use

Weekly Diet Support

Guideline for the amount of activity time per day required to achieve your weekly target and a percentage indicating the level of achievement.

BEST Record

Displays longest ever workout distance