Moment

Moment
Category	Limb-mounted
Developer	Somic Lab
Announced	August 2016 ?
Released	Developers: (unknown) Consumers: January 2017 pre-order
Price	159 USD 129 USD in Kickstarter
Operating system	none (can connect to smartphone)
Sensors	Accelerometer, Gyroscope, Magnetometer
Weight	g unknown
Controls	button, smartphone
Data available	Good
Risk factor	Low
Standalone
https://wearmoment.com/

https://www.technologyreview.com/s/602183/this-wristband-can-trace-your-gps-directions-on-your-skin/