A:AnswerYou can just touch it probably twice, however you have to look at your phone, once you have downloaded the app and set up your firtbit, it will let you know even when the battery is low.
A:AnswerThey won't connect to each other, but you can use them at the same time. I wear my Fossil Q and this and use the Q for everything but fitness tracking, and the flex for fitness tracking only.
A:AnswerThis does connect with the MyFitnessPal by Under Armor. I log my calories in the app and once you sync your Fitbit, they communicate. Under "Exercise" it will show "Fitbit Tracker calories adjustment" and have your steps shown with the calories burned. It will then adjust your calories to allow more caloric intake. You can delete it on any day that it shows if you choose not to adjust your caloric intake from exercise. Works great! Love it!!