What's Inside the Watch


14-Day Battery Life

display icon

Optional Real-Time Participant Feedback

Group (2)

Bluetooth Smart Enabled

ActiGraph GT9X Link

High Precision Motion Tracking for Multiple Wear Locations

ActiGraph GT9X Link combines our validated motion tracking technology with a programmable display and an integrated inertial measurement unit (IMU) for advanced research applications.

  • Programmable display: A programmable LCD window can be configured to display date and time, and provide optional real-time activity feedback such as steps and kcals.
  • Inertial Measurement Unit (IMU):Integrated IMU contains gyroscope, magnetometer and secondary 3-axis accelerometer sensors to provide position and rotational data for advanced applications such as gait analysis and fall detection.*
  • Wear Time Sensor: A wear time sensor on the back of the device uses capacitive touch technology to automatically detect when a wrist worn device has been removed.
  • Versatile Wear Locations: The GT9X offers maximum wear position flexibility with modular accessories for wrist, waist, ankle and lumbar worn devices.
* ActiGraph products are not intended to diagnose, treat, cure, or prevent any disease.

Declaration of Conformity

ActiGraph GT9X Link is compatible with

Link Wrist Strap

Link Wristband

Link Single Dock

Link Single Dock

Link GT9X Belt Pouch

Link Belt Pouch

Elastic Belt

Elastic Belt

ActiGraph GT9X Watch Specifications

The GT9X Watch is optimized for everyday activity & sleep monitoring


  • Battery Life: 14* Days
  • Data Storage: 180 Days / 4GB
  • Sample Rate: 30-100 Hertz
  • Dynamic Range (Primary Accelerometer): +/- 8G
  • Dynamic Range (Secondary Accelerometer): +/- 16G
  • Gyroscope Dynamic Range: +/- 2000 deg/sec
  • Magnetometer Dynamic Range: +/- 4800 micro-Tesla
  • Dimensions: 4.18 x 3.98 x 1.13 cm (in holster)
  • Wear Location: Wrist, Waist, Ankle, Thigh
  • Weight: 16-17 grams
  • Communication: USB, Bluetooth® LE 5
  • Water Resistance: IPX7 (1 meter, 30 minutes)
  • Warranty: 1 year

*Wireless disabled, 30 Hz sample rate, IMU disabled, sleep mode.


Physical Activity
  • Total Movement
  • Moderate to vigorous physical activity (MVPA)
  • Non-sedentary time
  • Step count
  • Energy Expenditure
  • Total sleep time (TST)
  • Sleep efficiency (SE)
  • Wake after sleep onset (WASO)
  • Sleep onset latency (SOL)
  • Sleep fragmentation index

Pioneering the Digital Transformation of Clinical Research™