A:AnswerThis specific item is "large" since it has large at the end of the name. All others are standard small/medium if does not have that designation.
A:AnswerIt will broadcast heart rate data to the Edge. For more information you may want to go to support.garmin.com where you will find many helpful FAQ's and video's on the functions of the device. If you need further assistance you may also reach out directly to a product support specialist from that link.
Debbie with Garmin
A:AnswerSometimes I too find it difficult to connect the charger. It seems you have to get it wrapped around the band perfectly before it actually connects. Usually after a couple tries I can get it to connect properly enough to charge. I hope this was helpful.
G
A:AnswerYes, as long as you have a phone with bluetooth that allows sharing in that way. I have a Blackberry Key 2 LE and it sends phone notifications to my Garmin.