ActiGraph wGT3X-BT Monitor

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ActiGraph wGT3X-BT Monitor

ActiGraph’s new Bluetooth® Smart wGT3X-BT wireless activity monitor, in conjunction with the ActiLife software platform, offers the most advanced communication, data capture, screening and analysis features in the industry, while delivering the validated physical activity and sleep/wake measurements on which our clients depend.

The ActiGraph wGT3X-BT provides objective 24 hour physical activity and sleep/wake measurements including raw acceleration, energy expenditure, MET rates, steps taken, physical activity intensity, heart rate R-R intervals**, subject position, total sleep time, sleep efficiency, and ambient light levels.

Equipped with our extensively validated measurement technology, the new Bluetooth® Smart wGT3X-BT is fully backward compatible with previous device models to ensure data comparability and monitor compatibility for our existing clients.


ActiGraph wGT3X-BT Monitor

High Resolution Raw Data:

Participant raw data can be collected at sample rates ranging from 30Hz-100Hz and transferred directly to researchers for analysis.

Versatile Wear Locations:

wGT3X-BT offers maximum wear position flexibility with options for wrist, waist, ankle and lumbar worn devices, allowing researchers to capture a wide variety of digital measures.

Bluetooth® LE:

wGT3X-BT can support a variety of wireless features, including heart rate monitoring, proximity detection, and communications with ActiGraph’s suite of mobile applications.

Validated Algorithms:

Data can be converted into a variety of objective activity and sleep measures using publicly available algorithms developed and validated by members of the research community.

Ambient Light Sensor:

Integrated light sensor that delivers lux values alongside motion data, providing insights into the relationship between the participant environment and activity and sleep behaviors.

Wear Time Sensor:

ActiGraph wGT3X-BTWear time sensor on the back of the device uses capacitive touch technology to automatically detect when a wrist worn device has been removed, simplifying adherence monitoring and data cleaning.


Pioneering the Digital Transformation of Clinical Research

ActiGraph is the only technology partner that offers an end-to-end digital health technology (DHT) solution combining best in class, medical-grade wearable devices, a scalable remote monitoring platform powered by state-of-the-art algorithms, and full service operational and data science support to ensure the successful collection of fit-for-purpose, patient-centered digital measures.





  • Battery Life: 25 Days
  • Data Storage: 180 Days / 4GB
  • Sample Rate: 30-100 Hertz
  • Dynamic Range: +/- 8G
  • Dimensions: 4.6 x 3.3 x 1.5 cm
  • Wear Location: Wrist, Waist, Ankle, Thigh
  • Weight: 19 grams
  • Communication: USB, Bluetooth® LE
  • Water Resistance: IPX7 (1 meter, 30 minutes)
  • Warranty: 1 year

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