Israel’s Mobit Telecom has developed the SAT406 – a locator beacon worn on the wrist. It is designed for remote areas where cellular networks and GPS are unavailable or unreliable. It transmits to the Argos satellite every few hours and in emergency to the Cospas-Sarsat system.

http://www.xinhuanet.com/english/2019-01/17/c_137749767.htm

https://www.sat406.com/products