Other than that, the front is all screen,
ultrasonic proximity sensor embedded directly into it, and something called «cantilever piezoelectric ceramic acoustic technology» replacing the conventional earpiece speaker.
The ultrasonic proximity sensor returns but is no longer accompanied by a vibration speaker found underneath the surface for calls.
The front camera remains on the bottom chin, and the device also continues along with its use of
an ultrasonic proximity sensor.
Instead, it went with a piezoelectric ceramic driver for the earpiece and
an ultrasonic proximity sensor, both of which are hidden behind the display.
On the other hand, the Mi MIX featured some innovative hardware like the three - sided bezel-less display,
ultrasonic proximity sensor, and piezoelectric ceramic acoustic technology speaker.
While the cantilever piezoelectric ceramic acoustic technology replaces the regular earpiece, the IR proximity sensor is replaced with
the ultrasonic proximity sensor.
There is
ultrasonic proximity sensor that does the job.
Instead, the company has opted for
the ultrasonic proximity sensor and piezoelectric ceramic acoustic technology that transmits the sound through the device frame.