A:AnswerGarmin does not sell watches by band size. You can go here and buy you short band.
https://www.garmin.com/en-US/c/wearables-smartwatches-accessories/
A:AnswerIt has settings where you can set it to monitor your heart rate but it does eat away at the battery life a bit faster but the battery life is very good. You can turn on a constant monitor and shut it off when you want to.
A:AnswerIt does not require it and works fine. You may need to use the Garmin Express app on your computer to apply updates and make configuration changes etc.
A:AnswerNo, the watch does not have a camera to take pictures. Please go to support.garmin.com where you'll find many helpful FAQ's and video's on the functions of the device. If you still need assistance you may reach out directly to a product support associate from that link.
Debbie with Garmin