0457
This interaction guides users through a lung capacity test. It begins with an instructional screen prompting the user to inhale, followed by a long-press prompt on a fingerprint-style button. As the user holds the button to exhale, a live timer counts up. Upon release, a vibrant burst of confetti celebrates the completion, and the button morphs into an animated circular progress ring that draws itself to reveal the user's lung health score, accompanied by a slide-in 'Save and Continue' button.
