A:AnswerYes. And the more you wear it to sleep the better it gets at automatically tracking sleep patterns.You don't even have to tell it your going to sleep :)
A:AnswerIt will track your heart rate any time you are wearing it. However, sweat and some arm positions tend to create poor accuracy on the wrist HR monitor. If you are doing non-cardio gym workouts, you will have better accuracy using a chest strap. The watch should automatically pick it up.
A:AnswerHello,
Below is a link to our Bluetooth compatibility list.
https://support.garmin.com/faqSearch/en-US/faq/content/pvL8aWsaLU2iKyvF8VrpP9
Thanks
Chris
A:AnswerHello,
Below is a article example the wrist size for all of our Garmin watches.
https://support.garmin.com/faqSearch/en-US/faq/content/jZgtzDVKMd7fwGl4h4dQSA
Thanks
Chris