Reviewed: Modula Instant Heart Rate app, Medicom MP4 Medical Identification Wristband, LifeTrac Mobile Protector, Bion Blink heart rate monitor
Bill Hillman remembers it clearly: "It was 4:05 a.m. on Oct. 29, 2009. I heard my wife, Dianne, say, 'I think I'm having a heart attack.' I opened my eyes and I saw her standing in the bathroom doorway. She grabbed her chest, took one step and collapsed on the bed."