Actigraph GT3X

Instrument Details

Actigraph GT3X

Actigraph GT3X

Physical activity assessment objective


14th April 2022

Antonia Smith, 

Triaxial accelerometer and ambient light sensor. Microelectro-Mechanical-System (MEMS) sensor. Raw sampling frequency 30Hz. It has the same dimensions as its predecessor, the GT1M (27g; 3.8 × 3.7 × 1.8 cm). The GT3X can be initialised to record data in either GT3X or GT1M modes.

Instrument Characteristics
acquisition  -> Device
location  -> Ankle
location  -> Waist
location  -> Hip
location  -> Wrist
timeseries  -> Yes
raw aggregated  -> Aggregated
opensource proprietary  -> Proprietary
raw sampling  -> 20 ms
resolution  -> 1 s