2.QQ is not counted if it is not running in the background.
3. In general, if you are counting steps with QQ, you can turn on the mobile phone traffic and just turn on QQ.
If you think this is too much trouble, you can buy one that can only be contained in the bracelet, which will be much more accurate.
All the above are personal opinions, I hope I can help you.
Hope to adopt. Thank you.