2 points
The phone sensors are so advanced that tools like “Sleep as Android” can record a perfect sleep snapshot just by leaving the phone on the bed while sleeping. I think Google can also record “private encounters” too. Actually, everything with a good sensor (smart watch(!)) can record everything. I am saying don’t be afraid, be horrified :-)
2 points
The gyroscope can record your speech: https://crypto.stanford.edu/gyrophone/files/gyromic.pdf
And no OS requires permissions for apps to access your motion sensors.
