Why set up a micro-letter, QQ and other information reminders, but the bracelet did not remind?

Micro-mail, and QQ software information reminders must meet the following conditions:

1. The mobile phone is dormant, the background process can not be closed;
2. computer and mobile phone can not be used at the same time,
3. The hand ring and the phone to keep the connection, Bluetooth needs to always open the State;

Tip: After the computer lands the micro-letter, the mobile phone is set on the free-of-disturb mode, and the hand ring will also be reminded.