The Kinefox wildlife tracking system uses an 18 g, Kinetron MSG32 kinetic energy harvesting mechanism to power the GPS and accelerometer ... glued to a ferromagnetic ring which generates power ...
The Oura Ring 4 has just been released — and it ... Both will also keep tabs on workouts, and borrow your iPhone’s GPS to track runs. Fitbit has the added benefit of built-in GPS on its ...
Best fitness tracking smart ring The Oura (buy now) is a ring which manages to cram ... which we find incredibly useful. With its built-in GPS smarts, we found it can track outdoor activities with ...
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