SIGMA Sports Watch - Heart rate monitor/Activity Tracker - iD.LIFE


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  • Regular price $119.99
  • Will be in stock after


iD.LIFE is a sports smart watch that has heart rate monitoring and activity tracking features without requiring any app for analysis. 

WRIST BASED HEART RATE: No need for bulky chest straps, instead iD.LIFE uses an optical sensor for heart rate monitoring.

NO APP REQUIRED: All the personal data and training statistics are stored and analyzed in the watch itself, giving a real time performance monitoring and control during training sessions.

TRAINING COACH: With training statistics, target zones, activity tracker, and wrist based heart rate, iD.LIFE has your fitness coaching covered.

OPTIMAL DISPLAY & INTUITIVE OPERATION: 41.1 mm x 13.4 mm display is clear and simple to read. Watch can be operated with just 3 buttons.

MINERAL GLASS DISPLAY: Scratch-resistant mineral glass display is rugged and sturdy for outdoor use.

SILICONE WRIST STRAP: Comfortable wrist strap has ample holes for pleasant airflow.

iD.LIFE contains heart rate monitor and Micro-USB cable.



  • Current heart rate
  • average heart rate
  • Preset training effect zones
  • Target zone with zone indicator
  • Actual speed/distance**
  • Monthly workout statistics
  • Activity tracking



  • Measurement of heart rate at the wrist
  • Fast access to the current heart rate
  • Backlit display
  • Vibrating alarm
  • Mineral glass
  • Rechargeable battery
  • Watertight in accordance with IPX7*

*Do not push the button under water
**based on accelerometer, calibration is possible


iD.LIFE contains heart rate monitor and Micro-USB cable.

Following accessories can be purchased separately:

18553 Micro USB Cable


18552 Charger + Micro USB Cable

SIGMA USB Wall Charger, US version - ZEITBIKE

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