During the big Apple event this week that announced the new iPhone and iPad models, several developers in the audience were using an Apple Watch app called Cardiogram that tracked their heartbeats. The company aggregated the data into an interesting chart that shows which parts of the announcements made the mobile development pros' hearts race.
Everyone's hearts were beating quickly as the event began, peaking at 109 beats per minute when Tim Cook appeared on stage. There were also 81 bpm peaks when the company announced the WatchOS2 Ship Date and when it unveiled the Apple Pencil. The iPad Pro Video was a consistent low.