This product (1) is not just for Pomodoro and (2) has nice tactile hardware. I think hardware that can "passively" be more useful with sensors and similar are

This product (1) is not just for Pomodoro and (2) has nice tactile hardware. I think hardware that can "passively" be more useful with sensors and similar are easy wins. No reason it has to disrupt a timer, it just hides sensors you'd want within a device that would already be sitting out in your home/office.