I don’t have a way to test the heart rate monitor but since the watch is working fine, I would assume it is too. My mother used this a couple times when she was given it as a gift but she’s not too tech savvy so it went in a cupboard. Comes with everything in the photos. There’s a CD inside the bottom right sleeve. I charged the watch up about 4 days ago and it’s still going, I’ve no idea how long the battery is meant to last and it doesn’t have a gauge on the screen. The plug is US but the lead is just USB so can be plugged into your phone charger or what have you