Do I need to implement Service for android - ble connection?

Question

I'm developing android app connecting to ble module

I'm testing it with Arduino nano IOT module

So far, app can read/write some data on it but I have read lots of articles and codes that (foreground) Service needs to be applied for the stable connectivity.

I'm not so sure if I really need to implement it.

My scenario is something like below.

• App will make Ble to run some task

• BLE device will do the task and send notification of the task progress repeatedly.

• App will get the noti and show it in the app

• But when the App go to the background or killed, no need to show the progress. In short, progress will only show within the app

• if user open the app again, app will reconnect automatically

• if ble is still sending progress noti, app will catch and show the progress again.

This is Scenario and wonder if I need to implement service to keep connecting.

In my knowledge, I don't need Service for this scenario but dunno if I miss other critical advantages when implementing it.

Could you please share any idea or thought?

Thanks!