My super-cheap fitness tracker has a hidden feature that can go head-to-head with Garmin and Apple

My Amazfit Helio Strap is a treasure trove of features. I can't believe this $99 fitness tracker beats the Apple Watch 11.
IEEE

Novel Area-Changed Capacitive Methods for Simultaneous Displacement Transducing and Force Balance in a Nano-g MEMS Accelerometer

Abstract: High-precision MEMS accelerometers with nano-g resolution are emergent instruments for geophysical applications and proved their competence in terms of functionality. The electromagnetic ...
IEEE

A Low 1/f Noise Tunnel Magnetoresistance Accelerometer

Abstract: Aiming at minimizing 1/f noise of tunnel magnetoresistance (TMR) accelerometers, a new principle incorporated acceleration sensing and 1/f noise suppression is demonstrated both ...