Apple acquires Sonera, betting on magnetic-field sensing to read brain activity in wearables
asymco · x · 2026-09-09
Horace Dediu analyzes Apple's acquisition of Sonera, whose proprietary technology non-invasively measures magnetic fields generated by the body — rather than electrical sensing — aiming to make brain activity as easy to measure as heart rate.
- Sonera's magnetometer uses acoustically driven ferromagnetic resonance, working at room temperature in portable form factors without skin contact
- A press release mentions an S1 chip that could enable a new class of consumer wearables based on muscle activity
Dediu's thesis: Apple has always positioned itself at the human-machine interface layer — mouse, multi-touch, spatial computing — and acquisitions of intention-detecting tech (gestures, motion, biometrics) follow a pattern that magnetic sensing extends.
Related event: EU filing reveals Apple acquired brain-reading sensor firm Sonera(2 posts)→
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