Two more brackets tucked up against the sides of the housing keep a few more key components in place: loudspeaker and pressure sensor on one side, and a microphone, vibration motor, and psuedo-button on the other.

Minus the vibration motor, all of these components connect to the sensor board at the bottom of the housing and terminate in soldered connections.

Even if you're handy with a soldering iron though, that sensor board lives under a metal plate and the whole affair is locked in with some serious permanent adhesive. It's unlikely you'll be able to remove it without damaging something.

The edge around the display features two separated metal brackets for reading your EDA levels (electrodermal activity) and taking that ECG.