Connecting a jacket to space to save lives

The future of satellite-connected wearables is closer to becoming an everyday reality thanks to the world’s first-ever two-way S-band connectivity from a wearable antenna with a geostationary satellite. In autumn 2025, a team climbed mount Halti to test the antenna’s capabilities. Developed by Finnish company Stealthcase, with support from the European Space Agency (ESA) and in collaboration with Radientum, the innovative antenna was integrated into a jacket by outdoor clothing brand HALTI. The demonstration paves the way for reliable communication for emergency responders and people in remote areas without cellular network.