Sending data from 2 Arduinos, to a mobile application.

Projects General Guidance
1

For my project i'm required to transmit data (sensor readings) from two bluetooth modules to a phone (mobile application). Im assuming the best way, and probably the one way to do so, is to set one Arduino as the slave and the other as the master, then transmit the data from the slave to the master. But how would I then be able to transmit the master data to my phone?

Arduino 1 -> Arduino 2 -> Phone
Slave -> Master -> ??

  1. Will the slave-master require pairing? If so, wouldn't that mean I couldn't pair to my phone?

  2. Does the BLE/Arduino push data? Because if so I can so I can connect 2 masters to my phone?
    ie: Master -> Master -> Phone?

  3. Im probably using the HC-05/HC-06 Modules for this project. Any other recommendations?

  4. Is there a better way to transmit the data from these 2 Arduinos that mentioned?

Any help would be very much appreciated!

Thank you!